Physics Letters B (Jan 2019)
First results on nucleon resonance photocouplings from the γp → π+π−p reaction
- E. Golovatch,
- V.D. Burkert,
- D.S. Carman,
- R.W. Gothe,
- K. Hicks,
- B.S. Ishkhanov,
- V.I. Mokeev,
- E. Pasyuk,
- S. Adhikari,
- Z. Akbar,
- M.J. Amaryan,
- H. Avakian,
- J. Ball,
- L. Barion,
- M. Bashkanov,
- M. Battaglieri,
- I. Bedlinskiy,
- A.S. Biselli,
- S. Boiarinov,
- W.J. Briscoe,
- F. Cao,
- A. Celentano,
- P. Chatagnon,
- T. Chetry,
- G. Ciullo,
- L. Clark,
- B.A. Clary,
- P.L. Cole,
- M. Contalbrigo,
- V. Crede,
- A. D'Angelo,
- N. Dashyan,
- R. De Vita,
- E. De Sanctis,
- M. Defurne,
- A. Deur,
- S. Diehl,
- C. Djalali,
- M. Dugger,
- R. Dupre,
- H. Egiyan,
- M. Ehrhart,
- A. El Alaoui,
- L. El Fassi,
- L. Elouadrhiri,
- P. Eugenio,
- G. Fedotov,
- R. Fersch,
- A. Filippi,
- Y. Ghandilyan,
- G.P. Gilfoyle,
- K.L. Giovanetti,
- F.X. Girod,
- D.I. Glazier,
- K.A. Griffioen,
- M. Guidal,
- L. Guo,
- K. Hafidi,
- H. Hakobyan,
- N. Harrison,
- M. Hattawy,
- D. Heddle,
- M. Holtrop,
- Y. Ilieva,
- D.G. Ireland,
- E.L. Isupov,
- D. Jenkins,
- H.S. Jo,
- S. Johnston,
- K. Joo,
- M.L. Kabir,
- D. Keller,
- G. Khachatryan,
- M. Khachatryan,
- M. Khandaker,
- W. Kim,
- A. Klein,
- F.J. Klein,
- V. Kubarovsky,
- L. Lanza,
- P. Lenisa,
- K. Livingston,
- I.J.D. MacGregor,
- D. Marchand,
- N. Markov,
- B. McKinnon,
- C.A. Meyer,
- R.A. Montgomery,
- A. Movsisyan,
- C. Munoz Camacho,
- P. Nadel-Turonski,
- S. Niccolai,
- G. Niculescu,
- M. Osipenko,
- A.I. Ostrovidov,
- M. Paolone,
- R. Paremuzyan,
- K. Park,
- O. Pogorelko,
- J.W. Price,
- Y. Prok,
- D. Protopopescu,
- M. Ripani,
- D. Riser,
- A. Rizzo,
- G. Rosner,
- F. Sabatié,
- C. Salgado,
- R.A. Schumacher,
- Y.G. Sharabian,
- Iu. Skorodumina,
- G.D. Smith,
- D.I. Sober,
- D. Sokhan,
- N. Sparveris,
- I.I. Strakovsky,
- S. Strauch,
- M. Taiuti,
- J.A. Tan,
- N. Tyler,
- M. Ungaro,
- H. Voskanyan,
- E. Voutier,
- R. Wang,
- X. Wei,
- M.H. Wood,
- N. Zachariou,
- J. Zhang,
- Z.W. Zhao
Affiliations
- E. Golovatch
- Skobeltsyn Institute of Nuclear Physics and Physics Department, Lomonosov Moscow State University, 119234 Moscow, Russia; Corresponding author.
- V.D. Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- D.S. Carman
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- R.W. Gothe
- University of South Carolina, Columbia, SC 29208, USA
- K. Hicks
- Ohio University, Athens, OH 45701, USA
- B.S. Ishkhanov
- Skobeltsyn Institute of Nuclear Physics and Physics Department, Lomonosov Moscow State University, 119234 Moscow, Russia
- V.I. Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA; Principal corresponding author.
- E. Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA; Arizona State University, Tempe, AZ 85287-1504, USA
- S. Adhikari
- Florida International University, Miami, FL 33199, USA
- Z. Akbar
- Florida State University, Tallahassee, FL 32306, USA
- M.J. Amaryan
- Old Dominion University, Norfolk, VA 23529, USA
- H. Avakian
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- J. Ball
- Irfu/SPhN, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- L. Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- M. Bashkanov
- Edinburgh University, Edinburgh EH9 3JZ, United Kingdom
- M. Battaglieri
- INFN, Sezione di Genova, 16146 Genova, Italy
- I. Bedlinskiy
- Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia
- A.S. Biselli
- Fairfield University, Fairfield, CT 06824, USA; Carnegie Mellon University, Pittsburgh, PA 15213, USA
- S. Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- W.J. Briscoe
- The George Washington University, Washington, DC 20052, USA
- F. Cao
- University of Connecticut, Storrs, CT 06269, USA
- A. Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
- P. Chatagnon
- Institut de Physique Nucléaire, CNRS/IN2P3 and Université Paris Sud, Orsay, France
- T. Chetry
- Ohio University, Athens, OH 45701, USA
- G. Ciullo
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy; Universita' di Ferrara, 44121 Ferrara, Italy
- L. Clark
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
- B.A. Clary
- University of Connecticut, Storrs, CT 06269, USA
- P.L. Cole
- Idaho State University, Pocatello, ID 83209, USA
- M. Contalbrigo
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- V. Crede
- Florida State University, Tallahassee, FL 32306, USA
- A. D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy; Universita' di Roma Tor Vergata, 00133 Rome, Italy
- N. Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
- R. De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
- E. De Sanctis
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
- M. Defurne
- Irfu/SPhN, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- A. Deur
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- S. Diehl
- University of Connecticut, Storrs, CT 06269, USA
- C. Djalali
- University of South Carolina, Columbia, SC 29208, USA
- M. Dugger
- Arizona State University, Tempe, AZ 85287-1504, USA
- R. Dupre
- Institut de Physique Nucléaire, CNRS/IN2P3 and Université Paris Sud, Orsay, France
- H. Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- M. Ehrhart
- Institut de Physique Nucléaire, CNRS/IN2P3 and Université Paris Sud, Orsay, France
- A. El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile
- L. El Fassi
- Mississippi State University, Mississippi State, MS 39762-5167, USA
- L. Elouadrhiri
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- P. Eugenio
- Florida State University, Tallahassee, FL 32306, USA
- G. Fedotov
- Ohio University, Athens, OH 45701, USA
- R. Fersch
- Christopher Newport University, Newport News, VA 23606, USA; College of William and Mary, Williamsburg, VA 23187-8795, USA
- A. Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
- Y. Ghandilyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
- G.P. Gilfoyle
- University of Richmond, Richmond, VA 23173, USA
- K.L. Giovanetti
- James Madison University, Harrisonburg, VA 22807, USA
- F.X. Girod
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA; Irfu/SPhN, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- D.I. Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
- K.A. Griffioen
- College of William and Mary, Williamsburg, VA 23187-8795, USA
- M. Guidal
- Institut de Physique Nucléaire, CNRS/IN2P3 and Université Paris Sud, Orsay, France
- L. Guo
- Florida International University, Miami, FL 33199, USA
- K. Hafidi
- Argonne National Laboratory, Argonne, IL 60439, USA
- H. Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile; Yerevan Physics Institute, 375036 Yerevan, Armenia
- N. Harrison
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- M. Hattawy
- Argonne National Laboratory, Argonne, IL 60439, USA
- D. Heddle
- Christopher Newport University, Newport News, VA 23606, USA; Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- M. Holtrop
- University of New Hampshire, Durham, NH 03824-3568, USA
- Y. Ilieva
- University of South Carolina, Columbia, SC 29208, USA; The George Washington University, Washington, DC 20052, USA
- D.G. Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
- E.L. Isupov
- Skobeltsyn Institute of Nuclear Physics and Physics Department, Lomonosov Moscow State University, 119234 Moscow, Russia
- D. Jenkins
- Virginia Tech, Blacksburg, VA 24061-0435, USA
- H.S. Jo
- Kyungpook National University, Daegu 41566, Republic of Korea; Institut de Physique Nucléaire, CNRS/IN2P3 and Université Paris Sud, Orsay, France
- S. Johnston
- Argonne National Laboratory, Argonne, IL 60439, USA
- K. Joo
- University of Connecticut, Storrs, CT 06269, USA
- M.L. Kabir
- Mississippi State University, Mississippi State, MS 39762-5167, USA
- D. Keller
- University of Virginia, Charlottesville, VA 22901, USA
- G. Khachatryan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
- M. Khachatryan
- Old Dominion University, Norfolk, VA 23529, USA
- M. Khandaker
- Idaho State University, Pocatello, ID 83209, USA
- W. Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
- A. Klein
- Old Dominion University, Norfolk, VA 23529, USA
- F.J. Klein
- Catholic University of America, Washington, DC 20064, USA
- V. Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA; Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USA
- L. Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- P. Lenisa
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- K. Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
- I.J.D. MacGregor
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
- D. Marchand
- Institut de Physique Nucléaire, CNRS/IN2P3 and Université Paris Sud, Orsay, France
- N. Markov
- University of Connecticut, Storrs, CT 06269, USA
- B. McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
- C.A. Meyer
- Carnegie Mellon University, Pittsburgh, PA 15213, USA
- R.A. Montgomery
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
- A. Movsisyan
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- C. Munoz Camacho
- Institut de Physique Nucléaire, CNRS/IN2P3 and Université Paris Sud, Orsay, France
- P. Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- S. Niccolai
- Institut de Physique Nucléaire, CNRS/IN2P3 and Université Paris Sud, Orsay, France
- G. Niculescu
- James Madison University, Harrisonburg, VA 22807, USA
- M. Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
- A.I. Ostrovidov
- Florida State University, Tallahassee, FL 32306, USA
- M. Paolone
- Temple University, Philadelphia, PA 19122, USA
- R. Paremuzyan
- University of New Hampshire, Durham, NH 03824-3568, USA
- K. Park
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA; Kyungpook National University, Daegu 41566, Republic of Korea
- O. Pogorelko
- Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia
- J.W. Price
- California State University, Dominguez Hills, Carson, CA 90747, USA
- Y. Prok
- Old Dominion University, Norfolk, VA 23529, USA; University of Virginia, Charlottesville, VA 22901, USA
- D. Protopopescu
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
- M. Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
- D. Riser
- University of Connecticut, Storrs, CT 06269, USA
- A. Rizzo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy; Universita' di Roma Tor Vergata, 00133 Rome, Italy
- G. Rosner
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
- F. Sabatié
- Irfu/SPhN, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- C. Salgado
- Norfolk State University, Norfolk, VA 23504, USA
- R.A. Schumacher
- Carnegie Mellon University, Pittsburgh, PA 15213, USA
- Y.G. Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- Iu. Skorodumina
- University of South Carolina, Columbia, SC 29208, USA
- G.D. Smith
- Edinburgh University, Edinburgh EH9 3JZ, United Kingdom
- D.I. Sober
- Catholic University of America, Washington, DC 20064, USA
- D. Sokhan
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
- N. Sparveris
- Temple University, Philadelphia, PA 19122, USA
- I.I. Strakovsky
- The George Washington University, Washington, DC 20052, USA
- S. Strauch
- University of South Carolina, Columbia, SC 29208, USA; The George Washington University, Washington, DC 20052, USA
- M. Taiuti
- Università di Genova, 16146 Genova, Italy
- J.A. Tan
- Kyungpook National University, Daegu 41566, Republic of Korea
- N. Tyler
- University of South Carolina, Columbia, SC 29208, USA
- M. Ungaro
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA; University of Connecticut, Storrs, CT 06269, USA; Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USA
- H. Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
- E. Voutier
- Institut de Physique Nucléaire, CNRS/IN2P3 and Université Paris Sud, Orsay, France
- R. Wang
- Institut de Physique Nucléaire, CNRS/IN2P3 and Université Paris Sud, Orsay, France
- X. Wei
- Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA
- M.H. Wood
- Canisius College, Buffalo, NY 14208, USA; University of South Carolina, Columbia, SC 29208, USA
- N. Zachariou
- Edinburgh University, Edinburgh EH9 3JZ, United Kingdom
- J. Zhang
- University of Virginia, Charlottesville, VA 22901, USA
- Z.W. Zhao
- Duke University, Durham, NC 27708-0305, USA
- Journal volume & issue
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Vol. 788
pp. 371 – 379
Abstract
We report the first experimental measurements of the nine 1-fold differential cross sections for the γp→π+π−p reaction, obtained with the CLAS detector at Jefferson Laboratory. The measurements cover the invariant mass range of the final state hadrons from 1.6 GeV <W< 2.0 GeV. For the first time the photocouplings of all prominent nucleon resonances in this mass range have been extracted from this exclusive channel. Photoproduction of two charged pions is of particular importance for the evaluation of the photocouplings for the Δ(1620)1/2−, Δ(1700)3/2−, N(1720)3/2+, and Δ(1905)5/2+ resonances, which have dominant decays into the ππN final states rather than the more extensively studied single meson decay channels. Keywords: Two pion photoproduction, Resonance photocouplings, Baryon state
