Physics Letters B (Apr 2015)
Measurement of the np→npπ0π0 reaction in search for the recently observed d⁎(2380) resonance
- P. Adlarson,
- W. Augustyniak,
- W. Bardan,
- M. Bashkanov,
- F.S. Bergmann,
- M. Berłowski,
- H. Bhatt,
- A. Bondar,
- M. Büscher,
- H. Calén,
- I. Ciepał,
- H. Clement,
- D. Coderre,
- E. Czerwiński,
- K. Demmich,
- E. Doroshkevich,
- R. Engels,
- A. Erven,
- W. Erven,
- W. Eyrich,
- P. Fedorets,
- K. Föhl,
- K. Fransson,
- F. Goldenbaum,
- P. Goslawski,
- A. Goswami,
- K. Grigoryev,
- C.-O. Gullström,
- F. Hauenstein,
- L. Heijkenskjöld,
- V. Hejny,
- B. Höistad,
- N. Hüsken,
- L. Jarczyk,
- T. Johansson,
- B. Kamys,
- G. Kemmerling,
- F.A. Khan,
- A. Khoukaz,
- D.A. Kirillov,
- S. Kistryn,
- H. Kleines,
- B. Kłos,
- W. Krzemień,
- P. Kulessa,
- A. Kupść,
- A. Kuzmin,
- K. Lalwani,
- D. Lersch,
- B. Lorentz,
- A. Magiera,
- R. Maier,
- P. Marciniewski,
- B. Mariański,
- M. Mikirtychiants,
- H.-P. Morsch,
- P. Moskal,
- H. Ohm,
- I. Ozerianska,
- E. Perez del Rio,
- N.M. Piskunov,
- P. Podkopał,
- D. Prasuhn,
- A. Pricking,
- D. Pszczel,
- K. Pysz,
- A. Pyszniak,
- J. Ritman,
- A. Roy,
- Z. Rudy,
- S. Sawant,
- S. Schadmand,
- T. Sefzick,
- V. Serdyuk,
- B. Shwartz,
- R. Siudak,
- T. Skorodko,
- M. Skurzok,
- J. Smyrski,
- V. Sopov,
- R. Stassen,
- J. Stepaniak,
- E. Stephan,
- G. Sterzenbach,
- H. Stockhorst,
- H. Ströher,
- A. Szczurek,
- A. Täschner,
- A. Trzciński,
- R. Varma,
- G.J. Wagner,
- M. Wolke,
- A. Wrońska,
- P. Wüstner,
- P. Wurm,
- A. Yamamoto,
- J. Zabierowski,
- M.J. Zieliński,
- A. Zink,
- J. Złomańczuk,
- P. Żuprański,
- M. Żurek
Affiliations
- P. Adlarson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- W. Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681, Warsaw, Poland
- W. Bardan
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- M. Bashkanov
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany; Kepler Center for Astro and Particle Physics, Eberhard Karls University Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- F.S. Bergmann
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 9, 48149 Münster, Germany
- M. Berłowski
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681, Warsaw, Poland
- H. Bhatt
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai-400076, Maharashtra, India
- A. Bondar
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk, 630090, Russia; Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
- M. Büscher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- H. Calén
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- I. Ciepał
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- H. Clement
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany; Kepler Center for Astro and Particle Physics, Eberhard Karls University Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany; Corresponding author.
- D. Coderre
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany; Institut für Experimentalphysik I, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
- E. Czerwiński
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- K. Demmich
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 9, 48149 Münster, Germany
- E. Doroshkevich
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany; Kepler Center for Astro and Particle Physics, Eberhard Karls University Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- R. Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- A. Erven
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- W. Erven
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- W. Eyrich
- Physikalisches Institut, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erwin-Rommel-Str. 1, 91058 Erlangen, Germany
- P. Fedorets
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany; Institute for Theoretical and Experimental Physics, State Scientific Center of the Russian Federation, Bolshaya Cheremushkinskaya 25, 117218 Moscow, Russia
- K. Föhl
- II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
- K. Fransson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- F. Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- P. Goslawski
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 9, 48149 Münster, Germany
- A. Goswami
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany; Department of Physics, Indian Institute of Technology Indore, Khandwa Road, Indore-452017, Madhya Pradesh, India
- K. Grigoryev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany; High Energy Physics Division, Petersburg Nuclear Physics Institute, Orlova Roscha 2, Gatchina, Leningrad district 188300, Russia
- C.-O. Gullström
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- F. Hauenstein
- Physikalisches Institut, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erwin-Rommel-Str. 1, 91058 Erlangen, Germany
- L. Heijkenskjöld
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- V. Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- B. Höistad
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- N. Hüsken
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 9, 48149 Münster, Germany
- L. Jarczyk
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- T. Johansson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- B. Kamys
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- G. Kemmerling
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- F.A. Khan
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- A. Khoukaz
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 9, 48149 Münster, Germany
- D.A. Kirillov
- Veksler and Baldin Laboratory of High Energy Physics, Joint Institute for Nuclear Physics, Joliot-Curie 6, 141980 Dubna, Moscow region, Russia
- S. Kistryn
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- H. Kleines
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- B. Kłos
- August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007, Katowice, Poland
- W. Krzemień
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- P. Kulessa
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
- A. Kupść
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden; High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681, Warsaw, Poland
- A. Kuzmin
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk, 630090, Russia; Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
- K. Lalwani
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai-400076, Maharashtra, India
- D. Lersch
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- B. Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- A. Magiera
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- R. Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- P. Marciniewski
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- B. Mariański
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681, Warsaw, Poland
- M. Mikirtychiants
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany; Institut für Experimentalphysik I, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany; High Energy Physics Division, Petersburg Nuclear Physics Institute, Orlova Roscha 2, Gatchina, Leningrad district 188300, Russia
- H.-P. Morsch
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681, Warsaw, Poland
- P. Moskal
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- H. Ohm
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- I. Ozerianska
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- E. Perez del Rio
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany; Kepler Center for Astro and Particle Physics, Eberhard Karls University Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- N.M. Piskunov
- Veksler and Baldin Laboratory of High Energy Physics, Joint Institute for Nuclear Physics, Joliot-Curie 6, 141980 Dubna, Moscow region, Russia
- P. Podkopał
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- D. Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- A. Pricking
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany; Kepler Center for Astro and Particle Physics, Eberhard Karls University Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- D. Pszczel
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden; High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681, Warsaw, Poland
- K. Pysz
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
- A. Pyszniak
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden; Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- J. Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany; Institut für Experimentalphysik I, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
- A. Roy
- Department of Physics, Indian Institute of Technology Indore, Khandwa Road, Indore-452017, Madhya Pradesh, India
- Z. Rudy
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- S. Sawant
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany; Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai-400076, Maharashtra, India
- S. Schadmand
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- T. Sefzick
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- V. Serdyuk
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany; Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Physics, Joliot-Curie 6, 141980 Dubna, Moscow region, Russia
- B. Shwartz
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk, 630090, Russia; Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russia
- R. Siudak
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
- T. Skorodko
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany; Kepler Center for Astro and Particle Physics, Eberhard Karls University Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany; Department of Physics, Tomsk State University, 36 Lenina Avenue, Tomsk, 634050, Russia
- M. Skurzok
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- J. Smyrski
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- V. Sopov
- Institute for Theoretical and Experimental Physics, State Scientific Center of the Russian Federation, Bolshaya Cheremushkinskaya 25, 117218 Moscow, Russia
- R. Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- J. Stepaniak
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681, Warsaw, Poland
- E. Stephan
- August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007, Katowice, Poland
- G. Sterzenbach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- H. Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- H. Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- A. Szczurek
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
- A. Täschner
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 9, 48149 Münster, Germany
- A. Trzciński
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681, Warsaw, Poland
- R. Varma
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai-400076, Maharashtra, India
- G.J. Wagner
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- M. Wolke
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- A. Wrońska
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- P. Wüstner
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- P. Wurm
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- A. Yamamoto
- High Energy Accelerator Research Organisation KEK, Tsukuba, Ibaraki 305-0801, Japan
- J. Zabierowski
- Department of Cosmic Ray Physics, National Centre for Nuclear Research, ul. Uniwersytecka 5, 90-950 Łódź, Poland
- M.J. Zieliński
- Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland
- A. Zink
- Physikalisches Institut, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erwin-Rommel-Str. 1, 91058 Erlangen, Germany
- J. Złomańczuk
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- P. Żuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681, Warsaw, Poland
- M. Żurek
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany; Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
- Journal volume & issue
-
Vol. 743
pp. 325 – 332
Abstract
Exclusive measurements of the quasi-free np→npπ0π0 reaction have been performed by means of dp collisions at Td=2.27 GeV using the WASA detector setup at COSY. Total and differential cross sections have been obtained covering the energy region s=(2.35–2.46) GeV, which includes the region of the ABC effect and its associated d⁎(2380) resonance. Adding the d⁎ resonance amplitude to that for the conventional processes leads to a reasonable description of the data. The observed resonance effect in the total cross section is in agreement with the predictions of Fäldt and Wilkin as well with those of Albadajedo and Oset. The ABC effect, i.e. the low-mass enhancement in the π0π0-invariant mass spectrum, is found to be very modest – if present at all, which might pose a problem to some of its interpretations. Keywords: Two-pion production, ABC effect and resonance structure, Dibaryon resonance
