Photoproduction of ? mesons off the proton for 1.2<E?<4.7 GeV using CLAS at Jefferson Laboratory

CLAS Collaboration

doi:10.1103/PhysRevC.102.065203

Photoproduction of ? mesons off the proton for 1.2<E?<4.7 GeV using CLAS at Jefferson Laboratory

CLAS Collaboration

Research output: Contribution to journal › Article › peer-review

Abstract

Photoproduction cross sections are reported for the reaction pp using energy-tagged photons and the CLAS spectrometer at Jefferson Laboratory. The ? mesons are detected in their dominant charged decay mode, p+p-p0, and results on differential cross sections are presented for incident photon energies between 1.2 and 4.7 GeV. These new ? photoproduction data are consistent with earlier CLAS results but extend the energy range beyond the nucleon resonance region into the Regge regime. The normalized angular distributions are also compared with the experimental results from several other experiments, and with predictions of ?-MAID 2018 and the latest solution of the Bonn-Gatchina coupled-channel analysis. Differential cross sections ds/dt are presented for incident photon energies E?>2.9GeV (W>2.5GeV), and compared with predictions which are based on Regge trajectories exchange in the t-channel (Regge models). The data confirm the expected dominance of vector-meson exchange in an analysis by the Joint Physics Analysis Center.

Original language	English
Article number	065203
Number of pages	22
Journal	Physical Review C
Volume	102
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.102.065203
Publication status	Published - 14 Dec 2020

Bibliographical note

Funding Information:
The authors thank the technical staff at Jefferson Laboratory and at all the participating institutions for their invaluable contributions to the success of the experiment. This research is based on work supported by the US Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-AC05-06OR23177. The group at Florida State University acknowledges additional support from the US Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-FG02-92ER40735. This work was also supported by the US National Science Foundation, the State Committee of Science of Republic of Armenia, the Chilean Comisión Nacional de Investigación Científica y Tecnológica (CONICYT), the Italian Istituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientifique, the French Commissariat a l'Energie Atomique, the Scottish Universities Physics Alliance (SUPA), the United Kingdom's Science and Technology Facilities Council, and the National Research Foundation of Korea.

Publisher Copyright:
© 2020 American Physical Society.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

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PhysRevC.102.065203
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@article{52c6b854651d4fa7a10d3b1c38abe7f8,

title = "Photoproduction of ? mesons off the proton for 1.2<E?<4.7 GeV using CLAS at Jefferson Laboratory",

abstract = "Photoproduction cross sections are reported for the reaction pp using energy-tagged photons and the CLAS spectrometer at Jefferson Laboratory. The ? mesons are detected in their dominant charged decay mode, p+p-p0, and results on differential cross sections are presented for incident photon energies between 1.2 and 4.7 GeV. These new ? photoproduction data are consistent with earlier CLAS results but extend the energy range beyond the nucleon resonance region into the Regge regime. The normalized angular distributions are also compared with the experimental results from several other experiments, and with predictions of ?-MAID 2018 and the latest solution of the Bonn-Gatchina coupled-channel analysis. Differential cross sections ds/dt are presented for incident photon energies E?>2.9GeV (W>2.5GeV), and compared with predictions which are based on Regge trajectories exchange in the t-channel (Regge models). The data confirm the expected dominance of vector-meson exchange in an analysis by the Joint Physics Analysis Center.",

author = "{CLAS Collaboration} and T. Hu and Z. Akbar and V. Crede and Adhikari, {K. P.} and S. Adhikari and Amaryan, {M. J.} and G. Angelini and G. Asryan and H. Atac and {Ayerbe Gayoso}, C. and L. Barion and M. Battaglieri and I. Bedlinskiy and F. Benmokhtar and A. Bianconi and Biselli, {A. S.} and F. Boss{\`u} and S. Boiarinov and Briscoe, {W. J.} and Brooks, {W. K.} and Carman, {D. S.} and J. Carvajal and A. Celentano and P. Chatagnon and T. Chetry and G. Ciullo and L. Clark and Clary, {B. A.} and Cole, {P. L.} and M. Contalbrigo and R. Cruz-Torres and A. D'Angelo and N. Dashyan and {De Vita}, R. and M. Defurne and A. Deur and S. Diehl and C. Djalali and M. Dugger and R. Dupre and H. Egiyan and M. Ehrhart and {El Alaoui}, A. and {El Fassi}, L. and P. Eugenio and G. Fedotov and R. Fersch and A. Filippi and Watts, {D. P.} and N. Zachariou",

note = "Funding Information: The authors thank the technical staff at Jefferson Laboratory and at all the participating institutions for their invaluable contributions to the success of the experiment. This research is based on work supported by the US Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-AC05-06OR23177. The group at Florida State University acknowledges additional support from the US Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-FG02-92ER40735. This work was also supported by the US National Science Foundation, the State Committee of Science of Republic of Armenia, the Chilean Comisi{\'o}n Nacional de Investigaci{\'o}n Cient{\'i}fica y Tecnol{\'o}gica (CONICYT), the Italian Istituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientifique, the French Commissariat a l'Energie Atomique, the Scottish Universities Physics Alliance (SUPA), the United Kingdom's Science and Technology Facilities Council, and the National Research Foundation of Korea. Publisher Copyright: {\textcopyright} 2020 American Physical Society. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2020",

month = dec,

day = "14",

doi = "10.1103/PhysRevC.102.065203",

language = "English",

volume = "102",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Photoproduction of ? mesons off the proton for 1.2<E?<4.7 GeV using CLAS at Jefferson Laboratory

AU - CLAS Collaboration

AU - Hu, T.

AU - Akbar, Z.

AU - Crede, V.

AU - Adhikari, K. P.

AU - Adhikari, S.

AU - Amaryan, M. J.

AU - Angelini, G.

AU - Asryan, G.

AU - Atac, H.

AU - Ayerbe Gayoso, C.

AU - Barion, L.

AU - Battaglieri, M.

AU - Bedlinskiy, I.

AU - Benmokhtar, F.

AU - Bianconi, A.

AU - Biselli, A. S.

AU - Bossù, F.

AU - Boiarinov, S.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Carman, D. S.

AU - Carvajal, J.

AU - Celentano, A.

AU - Chatagnon, P.

AU - Chetry, T.

AU - Ciullo, G.

AU - Clark, L.

AU - Clary, B. A.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Cruz-Torres, R.

AU - D'Angelo, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - Defurne, M.

AU - Deur, A.

AU - Diehl, S.

AU - Djalali, C.

AU - Dugger, M.

AU - Dupre, R.

AU - Egiyan, H.

AU - Ehrhart, M.

AU - El Alaoui, A.

AU - El Fassi, L.

AU - Eugenio, P.

AU - Fedotov, G.

AU - Fersch, R.

AU - Filippi, A.

AU - Watts, D. P.

AU - Zachariou, N.

N1 - Funding Information: The authors thank the technical staff at Jefferson Laboratory and at all the participating institutions for their invaluable contributions to the success of the experiment. This research is based on work supported by the US Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-AC05-06OR23177. The group at Florida State University acknowledges additional support from the US Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-FG02-92ER40735. This work was also supported by the US National Science Foundation, the State Committee of Science of Republic of Armenia, the Chilean Comisión Nacional de Investigación Científica y Tecnológica (CONICYT), the Italian Istituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientifique, the French Commissariat a l'Energie Atomique, the Scottish Universities Physics Alliance (SUPA), the United Kingdom's Science and Technology Facilities Council, and the National Research Foundation of Korea. Publisher Copyright: © 2020 American Physical Society. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/12/14

Y1 - 2020/12/14

N2 - Photoproduction cross sections are reported for the reaction pp using energy-tagged photons and the CLAS spectrometer at Jefferson Laboratory. The ? mesons are detected in their dominant charged decay mode, p+p-p0, and results on differential cross sections are presented for incident photon energies between 1.2 and 4.7 GeV. These new ? photoproduction data are consistent with earlier CLAS results but extend the energy range beyond the nucleon resonance region into the Regge regime. The normalized angular distributions are also compared with the experimental results from several other experiments, and with predictions of ?-MAID 2018 and the latest solution of the Bonn-Gatchina coupled-channel analysis. Differential cross sections ds/dt are presented for incident photon energies E?>2.9GeV (W>2.5GeV), and compared with predictions which are based on Regge trajectories exchange in the t-channel (Regge models). The data confirm the expected dominance of vector-meson exchange in an analysis by the Joint Physics Analysis Center.

AB - Photoproduction cross sections are reported for the reaction pp using energy-tagged photons and the CLAS spectrometer at Jefferson Laboratory. The ? mesons are detected in their dominant charged decay mode, p+p-p0, and results on differential cross sections are presented for incident photon energies between 1.2 and 4.7 GeV. These new ? photoproduction data are consistent with earlier CLAS results but extend the energy range beyond the nucleon resonance region into the Regge regime. The normalized angular distributions are also compared with the experimental results from several other experiments, and with predictions of ?-MAID 2018 and the latest solution of the Bonn-Gatchina coupled-channel analysis. Differential cross sections ds/dt are presented for incident photon energies E?>2.9GeV (W>2.5GeV), and compared with predictions which are based on Regge trajectories exchange in the t-channel (Regge models). The data confirm the expected dominance of vector-meson exchange in an analysis by the Joint Physics Analysis Center.

UR - http://www.scopus.com/inward/record.url?scp=85098218311&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.102.065203

DO - 10.1103/PhysRevC.102.065203

M3 - Article

AN - SCOPUS:85098218311

SN - 2469-9985

VL - 102

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 065203

ER -

Photoproduction of ? mesons off the proton for 1.2<E?<4.7 GeV using CLAS at Jefferson Laboratory

Abstract

Bibliographical note

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Nuclear Physics Consolidated Grant 2021-2024

Cite this

Photoproduction of ? mesons off the proton for 1.2<E?<4.7 GeV using CLAS at Jefferson Laboratory

Abstract

Bibliographical note

Access to Document

Other files and links

Projects

Nuclear Physics Consolidated Grant 2021-2024

Cite this