Physics Letters B (Jun 2020)
Measurement of the cross section for hard exclusive π0 muoproduction on the proton
- M.G. Alexeev,
- G.D. Alexeev,
- A. Amoroso,
- V. Andrieux,
- N.V. Anfimov,
- V. Anosov,
- A. Antoshkin,
- K. Augsten,
- W. Augustyniak,
- C.D.R. Azevedo,
- B. Badełek,
- F. Balestra,
- M. Ball,
- J. Barth,
- R. Beck,
- Y. Bedfer,
- J. Bernhard,
- M. Bodlak,
- P. Bordalo,
- F. Bradamante,
- A. Bressan,
- M. Büchele,
- V.E. Burtsev,
- W.-C. Chang,
- C. Chatterjee,
- M. Chiosso,
- A.G. Chumakov,
- S.-U. Chung,
- A. Cicuttin,
- M.L. Crespo,
- S. Dalla Torre,
- S.S. Dasgupta,
- S. Dasgupta,
- O.Yu. Denisov,
- L. Dhara,
- S.V. Donskov,
- N. Doshita,
- Ch. Dreisbach,
- W. Dünnweber,
- R.R. Dusaev,
- A. Efremov,
- P.D. Eversheim,
- M. Faessler,
- A. Ferrero,
- M. Finger,
- M. Finger, Jr.,
- H. Fischer,
- C. Franco,
- N. du Fresne von Hohenesche,
- J.M. Friedrich,
- V. Frolov,
- E. Fuchey,
- F. Gautheron,
- O.P. Gavrichtchouk,
- S. Gerassimov,
- J. Giarra,
- I. Gnesi,
- M. Gorzellik,
- A. Grasso,
- A. Gridin,
- M. Grosse Perdekamp,
- B. Grube,
- A. Guskov,
- D. Hahne,
- G. Hamar,
- D. von Harrach,
- R. Heitz,
- F. Herrmann,
- N. Horikawa,
- N. d'Hose,
- C.-Y. Hsieh,
- S. Huber,
- S. Ishimoto,
- A. Ivanov,
- T. Iwata,
- M. Jandek,
- V. Jary,
- R. Joosten,
- P. Jörg,
- K. Juraskova,
- E. Kabuß,
- F. Kaspar,
- A. Kerbizi,
- B. Ketzer,
- G.V. Khaustov,
- Yu.A. Khokhlov,
- Yu. Kisselev,
- F. Klein,
- J.H. Koivuniemi,
- V.N. Kolosov,
- K. Kondo Horikawa,
- I. Konorov,
- V.F. Konstantinov,
- A.M. Kotzinian,
- O.M. Kouznetsov,
- Z. Kral,
- M. Krämer,
- F. Krinner,
- Z.V. Kroumchtein,
- Y. Kulinich,
- F. Kunne,
- K. Kurek,
- R.P. Kurjata,
- A. Kveton,
- S. Levorato,
- Y.-S. Lian,
- J. Lichtenstadt,
- P.-J. Lin,
- R. Longo,
- V.E. Lyubovitskij,
- A. Maggiora,
- A. Magnon,
- N. Makins,
- N. Makke,
- G.K. Mallot,
- S.A. Mamon,
- B. Marianski,
- A. Martin,
- J. Marzec,
- J. Matoušek,
- T. Matsuda,
- G.V. Meshcheryakov,
- M. Meyer,
- W. Meyer,
- Yu.V. Mikhailov,
- M. Mikhasenko,
- E. Mitrofanov,
- N. Mitrofanov,
- Y. Miyachi,
- A. Moretti,
- C. Naim,
- A. Nagaytsev,
- D. Neyret,
- J. Nový,
- W.-D. Nowak,
- G. Nukazuka,
- A.S. Nunes,
- A.G. Olshevsky,
- M. Ostrick,
- D. Panzieri,
- B. Parsamyan,
- S. Paul,
- J.-C. Peng,
- F. Pereira,
- M. Pešek,
- D.V. Peshekhonov,
- M. Pešková,
- N. Pierre,
- S. Platchkov,
- J. Pochodzalla,
- V.A. Polyakov,
- J. Pretz,
- M. Quaresma,
- C. Quintans,
- S. Ramos,
- C. Regali,
- G. Reicherz,
- C. Riedl,
- D.I. Ryabchikov,
- A. Rybnikov,
- A. Rychter,
- V.D. Samoylenko,
- A. Sandacz,
- S. Sarkar,
- I.A. Savin,
- G. Sbrizzai,
- H. Schmieden,
- A. Selyunin,
- L. Silva,
- L. Sinha,
- M. Slunecka,
- J. Smolik,
- A. Srnka,
- D. Steffen,
- M. Stolarski,
- O. Subrt,
- M. Sulc,
- H. Suzuki,
- A. Szabelski,
- T. Szameitat,
- P. Sznajder,
- S. Tessaro,
- F. Tessarotto,
- A. Thiel,
- J. Tomsa,
- F. Tosello,
- V. Tskhay,
- S. Uhl,
- B.I. Vasilishin,
- A. Vauth,
- B.M. Veit,
- J. Veloso,
- A. Vidon,
- M. Virius,
- M. Wagner,
- S. Wallner,
- M. Wilfert,
- K. Zaremba,
- P. Zavada,
- M. Zavertyaev,
- E. Zemlyanichkina,
- Y. Zhao,
- M. Ziembicki
Affiliations
- M.G. Alexeev
- University of Turin, Dept. of Physics, 10125 Turin, Italy
- G.D. Alexeev
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- A. Amoroso
- University of Turin, Dept. of Physics, 10125 Turin, Italy; Torino Section of INFN, 10125 Turin, Italy
- V. Andrieux
- CERN, 1211 Geneva 23, Switzerland; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- N.V. Anfimov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- V. Anosov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- A. Antoshkin
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- K. Augsten
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia; Czech Technical University in Prague, 16636 Prague, Czech Republic20
- W. Augustyniak
- National Centre for Nuclear Research, 00-681 Warsaw, Poland2828 Supported by NCN, Grant 2017/26/M/ST2/00498 (Poland).
- C.D.R. Azevedo
- University of Aveiro, I3N - Physics Department, 3810-193 Aveiro, Portugal
- B. Badełek
- University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland28
- F. Balestra
- University of Turin, Dept. of Physics, 10125 Turin, Italy; Torino Section of INFN, 10125 Turin, Italy
- M. Ball
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18
- J. Barth
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18
- R. Beck
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18
- Y. Bedfer
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- J. Bernhard
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18; CERN, 1211 Geneva 23, Switzerland
- M. Bodlak
- Charles University in Prague, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic20
- P. Bordalo
- LIP, 1649-003 Lisbon, Portugal2222 Supported by FCT, COMPETE and QREN, Grants CERN/FP 116376/2010, 123600/2011 and CERN/FIS-NUC/0017/2015 (Portugal).
- F. Bradamante
- University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy
- A. Bressan
- University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy
- M. Büchele
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany1819
- V.E. Burtsev
- Tomsk Polytechnic University, 634050 Tomsk, Russia2626 Supported by the Russian Federation program “Nauka” (Contract No. 0.1764.GZB.2017) (Russia).
- W.-C. Chang
- Academia Sinica, Institute of Physics, Taipei 11529, Taiwan2424 Supported by the Ministry of Science and Technology, Taiwan.
- C. Chatterjee
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India2121 Supported by B.Sen fund (India).
- M. Chiosso
- University of Turin, Dept. of Physics, 10125 Turin, Italy; Torino Section of INFN, 10125 Turin, Italy
- A.G. Chumakov
- Tomsk Polytechnic University, 634050 Tomsk, Russia2626 Supported by the Russian Federation program “Nauka” (Contract No. 0.1764.GZB.2017) (Russia).
- S.-U. Chung
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- A. Cicuttin
- Trieste Section of INFN, 34127 Trieste, Italy
- M.L. Crespo
- Trieste Section of INFN, 34127 Trieste, Italy
- S. Dalla Torre
- Trieste Section of INFN, 34127 Trieste, Italy
- S.S. Dasgupta
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India2121 Supported by B.Sen fund (India).
- S. Dasgupta
- University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy
- O.Yu. Denisov
- Torino Section of INFN, 10125 Turin, Italy; Corresponding authors.
- L. Dhara
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India2121 Supported by B.Sen fund (India).
- S.V. Donskov
- State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia
- N. Doshita
- Yamagata University, Yamagata 992-8510, Japan23
- Ch. Dreisbach
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- W. Dünnweber
- University of Aveiro, I3N - Physics Department, 3810-193 Aveiro, Portugal; Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany1818 Supported by BMBF - Bundesministerium für Bildung und Forschung (Germany).1919 Supported by FP7, HadronPhysics3, Grant 283286 (European Union).; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18; Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany18; Institute of Scientific Instruments of the CAS, 61264 Brno, Czech Republic2020 Supported by MEYS, Grant LM20150581 (Czech Republic).; Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India2121 Supported by B.Sen fund (India).; Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia; Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany1819; CERN, 1211 Geneva 23, Switzerland; Technical University in Liberec, 46117 Liberec, Czech Republic20; LIP, 1649-003 Lisbon, Portugal2222 Supported by FCT, COMPETE and QREN, Grants CERN/FP 116376/2010, 123600/2011 and CERN/FIS-NUC/0017/2015 (Portugal).; Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18; University of Miyazaki, Miyazaki 889-2192, Japan2323 Supported by MEXT and JSPS, Grants 18002006, 20540299, 18540281 and 26247032, the Daiko and Yamada Foundations (Japan).; Lebedev Physical Institute, 119991 Moscow, Russia; Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).; Nagoya University, 464 Nagoya, Japan23; Charles University in Prague, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic20; Czech Technical University in Prague, 16636 Prague, Czech Republic20; State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19; Academia Sinica, Institute of Physics, Taipei 11529, Taiwan2424 Supported by the Ministry of Science and Technology, Taiwan.; Tel Aviv University, School of Physics and Astronomy, 69978 Tel Aviv, Israel2525 Supported by the Israel Academy of Sciences and Humanities (Israel).; University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy; University of Turin, Dept. of Physics, 10125 Turin, Italy; Torino Section of INFN, 10125 Turin, Italy; Tomsk Polytechnic University, 634050 Tomsk, Russia2626 Supported by the Russian Federation program “Nauka” (Contract No. 0.1764.GZB.2017) (Russia).; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).; National Centre for Nuclear Research, 00-681 Warsaw, Poland2828 Supported by NCN, Grant 2017/26/M/ST2/00498 (Poland).; University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland28; Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland28; Yamagata University, Yamagata 992-8510, Japan23
- R.R. Dusaev
- Tomsk Polytechnic University, 634050 Tomsk, Russia2626 Supported by the Russian Federation program “Nauka” (Contract No. 0.1764.GZB.2017) (Russia).
- A. Efremov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- P.D. Eversheim
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18
- M. Faessler
- University of Aveiro, I3N - Physics Department, 3810-193 Aveiro, Portugal; Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany1818 Supported by BMBF - Bundesministerium für Bildung und Forschung (Germany).1919 Supported by FP7, HadronPhysics3, Grant 283286 (European Union).; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18; Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany18; Institute of Scientific Instruments of the CAS, 61264 Brno, Czech Republic2020 Supported by MEYS, Grant LM20150581 (Czech Republic).; Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India2121 Supported by B.Sen fund (India).; Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia; Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany1819; CERN, 1211 Geneva 23, Switzerland; Technical University in Liberec, 46117 Liberec, Czech Republic20; LIP, 1649-003 Lisbon, Portugal2222 Supported by FCT, COMPETE and QREN, Grants CERN/FP 116376/2010, 123600/2011 and CERN/FIS-NUC/0017/2015 (Portugal).; Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18; University of Miyazaki, Miyazaki 889-2192, Japan2323 Supported by MEXT and JSPS, Grants 18002006, 20540299, 18540281 and 26247032, the Daiko and Yamada Foundations (Japan).; Lebedev Physical Institute, 119991 Moscow, Russia; Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).; Nagoya University, 464 Nagoya, Japan23; Charles University in Prague, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic20; Czech Technical University in Prague, 16636 Prague, Czech Republic20; State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19; Academia Sinica, Institute of Physics, Taipei 11529, Taiwan2424 Supported by the Ministry of Science and Technology, Taiwan.; Tel Aviv University, School of Physics and Astronomy, 69978 Tel Aviv, Israel2525 Supported by the Israel Academy of Sciences and Humanities (Israel).; University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy; University of Turin, Dept. of Physics, 10125 Turin, Italy; Torino Section of INFN, 10125 Turin, Italy; Tomsk Polytechnic University, 634050 Tomsk, Russia2626 Supported by the Russian Federation program “Nauka” (Contract No. 0.1764.GZB.2017) (Russia).; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).; National Centre for Nuclear Research, 00-681 Warsaw, Poland2828 Supported by NCN, Grant 2017/26/M/ST2/00498 (Poland).; University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland28; Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland28; Yamagata University, Yamagata 992-8510, Japan23
- A. Ferrero
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- M. Finger
- Charles University in Prague, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic20
- M. Finger, Jr.
- Charles University in Prague, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic20
- H. Fischer
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany1819
- C. Franco
- LIP, 1649-003 Lisbon, Portugal2222 Supported by FCT, COMPETE and QREN, Grants CERN/FP 116376/2010, 123600/2011 and CERN/FIS-NUC/0017/2015 (Portugal).
- N. du Fresne von Hohenesche
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18; CERN, 1211 Geneva 23, Switzerland
- J.M. Friedrich
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).; Corresponding authors.
- V. Frolov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia; CERN, 1211 Geneva 23, Switzerland
- E. Fuchey
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- F. Gautheron
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany1818 Supported by BMBF - Bundesministerium für Bildung und Forschung (Germany).1919 Supported by FP7, HadronPhysics3, Grant 283286 (European Union).; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- O.P. Gavrichtchouk
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- S. Gerassimov
- Lebedev Physical Institute, 119991 Moscow, Russia; Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- J. Giarra
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18
- I. Gnesi
- University of Turin, Dept. of Physics, 10125 Turin, Italy; Torino Section of INFN, 10125 Turin, Italy
- M. Gorzellik
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany1819
- A. Grasso
- University of Turin, Dept. of Physics, 10125 Turin, Italy; Torino Section of INFN, 10125 Turin, Italy
- A. Gridin
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- M. Grosse Perdekamp
- University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- B. Grube
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- A. Guskov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- D. Hahne
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany18
- G. Hamar
- Trieste Section of INFN, 34127 Trieste, Italy
- D. von Harrach
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18
- R. Heitz
- University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- F. Herrmann
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany1819
- N. Horikawa
- Nagoya University, 464 Nagoya, Japan23
- N. d'Hose
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- C.-Y. Hsieh
- Academia Sinica, Institute of Physics, Taipei 11529, Taiwan2424 Supported by the Ministry of Science and Technology, Taiwan.
- S. Huber
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- S. Ishimoto
- Yamagata University, Yamagata 992-8510, Japan23
- A. Ivanov
- University of Turin, Dept. of Physics, 10125 Turin, Italy; Torino Section of INFN, 10125 Turin, Italy
- T. Iwata
- Yamagata University, Yamagata 992-8510, Japan23
- M. Jandek
- Czech Technical University in Prague, 16636 Prague, Czech Republic20
- V. Jary
- Czech Technical University in Prague, 16636 Prague, Czech Republic20
- R. Joosten
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18
- P. Jörg
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany1819
- K. Juraskova
- Czech Technical University in Prague, 16636 Prague, Czech Republic20
- E. Kabuß
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18
- F. Kaspar
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- A. Kerbizi
- University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy
- B. Ketzer
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18
- G.V. Khaustov
- State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia
- Yu.A. Khokhlov
- State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia
- Yu. Kisselev
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- F. Klein
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany18
- J.H. Koivuniemi
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany1818 Supported by BMBF - Bundesministerium für Bildung und Forschung (Germany).1919 Supported by FP7, HadronPhysics3, Grant 283286 (European Union).; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- V.N. Kolosov
- State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia
- K. Kondo Horikawa
- Yamagata University, Yamagata 992-8510, Japan23
- I. Konorov
- Lebedev Physical Institute, 119991 Moscow, Russia; Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- V.F. Konstantinov
- State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia
- A.M. Kotzinian
- Torino Section of INFN, 10125 Turin, Italy
- O.M. Kouznetsov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- Z. Kral
- Charles University in Prague, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic20
- M. Krämer
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- F. Krinner
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- Z.V. Kroumchtein
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- Y. Kulinich
- University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- F. Kunne
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- K. Kurek
- National Centre for Nuclear Research, 00-681 Warsaw, Poland2828 Supported by NCN, Grant 2017/26/M/ST2/00498 (Poland).
- R.P. Kurjata
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland28
- A. Kveton
- Czech Technical University in Prague, 16636 Prague, Czech Republic20
- S. Levorato
- Trieste Section of INFN, 34127 Trieste, Italy
- Y.-S. Lian
- Academia Sinica, Institute of Physics, Taipei 11529, Taiwan2424 Supported by the Ministry of Science and Technology, Taiwan.
- J. Lichtenstadt
- Tel Aviv University, School of Physics and Astronomy, 69978 Tel Aviv, Israel2525 Supported by the Israel Academy of Sciences and Humanities (Israel).
- P.-J. Lin
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- R. Longo
- University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- V.E. Lyubovitskij
- Tomsk Polytechnic University, 634050 Tomsk, Russia2626 Supported by the Russian Federation program “Nauka” (Contract No. 0.1764.GZB.2017) (Russia).
- A. Maggiora
- Torino Section of INFN, 10125 Turin, Italy
- A. Magnon
- University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- N. Makins
- University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- N. Makke
- Trieste Section of INFN, 34127 Trieste, Italy
- G.K. Mallot
- CERN, 1211 Geneva 23, Switzerland
- S.A. Mamon
- Tomsk Polytechnic University, 634050 Tomsk, Russia2626 Supported by the Russian Federation program “Nauka” (Contract No. 0.1764.GZB.2017) (Russia).
- B. Marianski
- National Centre for Nuclear Research, 00-681 Warsaw, Poland2828 Supported by NCN, Grant 2017/26/M/ST2/00498 (Poland).
- A. Martin
- University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy
- J. Marzec
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland28
- J. Matoušek
- University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy; Charles University in Prague, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic20
- T. Matsuda
- University of Miyazaki, Miyazaki 889-2192, Japan2323 Supported by MEXT and JSPS, Grants 18002006, 20540299, 18540281 and 26247032, the Daiko and Yamada Foundations (Japan).
- G.V. Meshcheryakov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- M. Meyer
- University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- W. Meyer
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany1818 Supported by BMBF - Bundesministerium für Bildung und Forschung (Germany).1919 Supported by FP7, HadronPhysics3, Grant 283286 (European Union).
- Yu.V. Mikhailov
- State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia
- M. Mikhasenko
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18
- E. Mitrofanov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- N. Mitrofanov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- Y. Miyachi
- Yamagata University, Yamagata 992-8510, Japan23
- A. Moretti
- University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy
- C. Naim
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- A. Nagaytsev
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- D. Neyret
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- J. Nový
- Czech Technical University in Prague, 16636 Prague, Czech Republic20; CERN, 1211 Geneva 23, Switzerland
- W.-D. Nowak
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18
- G. Nukazuka
- Yamagata University, Yamagata 992-8510, Japan23
- A.S. Nunes
- LIP, 1649-003 Lisbon, Portugal2222 Supported by FCT, COMPETE and QREN, Grants CERN/FP 116376/2010, 123600/2011 and CERN/FIS-NUC/0017/2015 (Portugal).
- A.G. Olshevsky
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- M. Ostrick
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18
- D. Panzieri
- Torino Section of INFN, 10125 Turin, Italy
- B. Parsamyan
- University of Turin, Dept. of Physics, 10125 Turin, Italy; Torino Section of INFN, 10125 Turin, Italy
- S. Paul
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- J.-C. Peng
- University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- F. Pereira
- University of Aveiro, I3N - Physics Department, 3810-193 Aveiro, Portugal
- M. Pešek
- Charles University in Prague, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic20
- D.V. Peshekhonov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- M. Pešková
- Charles University in Prague, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic20
- N. Pierre
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- S. Platchkov
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- J. Pochodzalla
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18
- V.A. Polyakov
- State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia
- J. Pretz
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany18
- M. Quaresma
- Academia Sinica, Institute of Physics, Taipei 11529, Taiwan2424 Supported by the Ministry of Science and Technology, Taiwan.
- C. Quintans
- LIP, 1649-003 Lisbon, Portugal2222 Supported by FCT, COMPETE and QREN, Grants CERN/FP 116376/2010, 123600/2011 and CERN/FIS-NUC/0017/2015 (Portugal).
- S. Ramos
- LIP, 1649-003 Lisbon, Portugal2222 Supported by FCT, COMPETE and QREN, Grants CERN/FP 116376/2010, 123600/2011 and CERN/FIS-NUC/0017/2015 (Portugal).
- C. Regali
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany1819
- G. Reicherz
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany1818 Supported by BMBF - Bundesministerium für Bildung und Forschung (Germany).1919 Supported by FP7, HadronPhysics3, Grant 283286 (European Union).
- C. Riedl
- University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, IL 61801-3080, USA2727 Supported by the National Science Foundation, Grant no. PHY-1506416 (USA).
- D.I. Ryabchikov
- State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia; Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- A. Rybnikov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- A. Rychter
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland28
- V.D. Samoylenko
- State Scientific Center Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’, 142281 Protvino, Russia
- A. Sandacz
- National Centre for Nuclear Research, 00-681 Warsaw, Poland2828 Supported by NCN, Grant 2017/26/M/ST2/00498 (Poland).
- S. Sarkar
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India2121 Supported by B.Sen fund (India).
- I.A. Savin
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- G. Sbrizzai
- University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy
- H. Schmieden
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany18
- A. Selyunin
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- L. Silva
- LIP, 1649-003 Lisbon, Portugal2222 Supported by FCT, COMPETE and QREN, Grants CERN/FP 116376/2010, 123600/2011 and CERN/FIS-NUC/0017/2015 (Portugal).
- L. Sinha
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India2121 Supported by B.Sen fund (India).
- M. Slunecka
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- J. Smolik
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- A. Srnka
- Institute of Scientific Instruments of the CAS, 61264 Brno, Czech Republic2020 Supported by MEYS, Grant LM20150581 (Czech Republic).
- D. Steffen
- CERN, 1211 Geneva 23, Switzerland; Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- M. Stolarski
- LIP, 1649-003 Lisbon, Portugal2222 Supported by FCT, COMPETE and QREN, Grants CERN/FP 116376/2010, 123600/2011 and CERN/FIS-NUC/0017/2015 (Portugal).
- O. Subrt
- CERN, 1211 Geneva 23, Switzerland; Czech Technical University in Prague, 16636 Prague, Czech Republic20
- M. Sulc
- Technical University in Liberec, 46117 Liberec, Czech Republic20
- H. Suzuki
- Yamagata University, Yamagata 992-8510, Japan23
- A. Szabelski
- University of Trieste, Dept. of Physics, 34127 Trieste, Italy; Trieste Section of INFN, 34127 Trieste, Italy; National Centre for Nuclear Research, 00-681 Warsaw, Poland2828 Supported by NCN, Grant 2017/26/M/ST2/00498 (Poland).
- T. Szameitat
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany1819
- P. Sznajder
- National Centre for Nuclear Research, 00-681 Warsaw, Poland2828 Supported by NCN, Grant 2017/26/M/ST2/00498 (Poland).
- S. Tessaro
- Trieste Section of INFN, 34127 Trieste, Italy
- F. Tessarotto
- Trieste Section of INFN, 34127 Trieste, Italy
- A. Thiel
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18
- J. Tomsa
- Charles University in Prague, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic20
- F. Tosello
- Torino Section of INFN, 10125 Turin, Italy
- V. Tskhay
- Lebedev Physical Institute, 119991 Moscow, Russia
- S. Uhl
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- B.I. Vasilishin
- Tomsk Polytechnic University, 634050 Tomsk, Russia2626 Supported by the Russian Federation program “Nauka” (Contract No. 0.1764.GZB.2017) (Russia).
- A. Vauth
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany18; CERN, 1211 Geneva 23, Switzerland
- B.M. Veit
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18; CERN, 1211 Geneva 23, Switzerland
- J. Veloso
- University of Aveiro, I3N - Physics Department, 3810-193 Aveiro, Portugal
- A. Vidon
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France19
- M. Virius
- Czech Technical University in Prague, 16636 Prague, Czech Republic20
- M. Wagner
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany18
- S. Wallner
- Technische Universität München, Physik Dept., 85748 Garching, Germany1855 Supported by the DFG cluster of excellence ‘Origin and Structure of the Universe’ (www.universe-cluster.de) (Germany).
- M. Wilfert
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany18
- K. Zaremba
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland28
- P. Zavada
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- M. Zavertyaev
- Lebedev Physical Institute, 119991 Moscow, Russia
- E. Zemlyanichkina
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- Y. Zhao
- Trieste Section of INFN, 34127 Trieste, Italy
- M. Ziembicki
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland28
- Journal volume & issue
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Vol. 805
Abstract
We report on a measurement of hard exclusive π0 muoproduction on the proton by COMPASS using 160GeV/c polarised μ+ and μ− beams of the CERN SPS impinging on a liquid hydrogen target. From the average of the measured μ+ and μ− cross sections, the virtual-photon proton cross section is determined as a function of the squared four-momentum transfer between initial and final proton in the range 0.08(GeV/c)2<|t|<0.64(GeV/c)2. The average kinematics of the measurement are 〈Q2〉=2.0(GeV/c)2, 〈ν〉=12.8GeV, 〈xBj〉=0.093 and 〈−t〉=0.256(GeV/c)2. Fitting the azimuthal dependence reveals a combined contribution by transversely and longitudinally polarised photons of (8.2±0.9stat−1.2+1.2|sys)nb/(GeV/c)2, as well as transverse-transverse and longitudinal-transverse interference contributions of (−6.1±1.3stat−0.7+0.7|sys)nb/(GeV/c)2 and (1.5±0.5stat−0.2+0.3|sys)nb/(GeV/c)2, respectively. Our results provide important input for modelling Generalised Parton Distributions. In the context of the phenomenological Goloskokov-Kroll model, the statistically significant transverse-transverse interference contribution constitutes clear experimental evidence for the chiral-odd GPD E‾T.
