Photoproduction of the f2 (1270) Meson Using the CLAS Detector

(CLAS Collaboration)

doi:10.1103/PhysRevLett.126.082002

Photoproduction of the f2 (1270) Meson Using the CLAS Detector

(CLAS Collaboration)

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

Abstract

The quark structure of the f2(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq¯) resonance with quantum numbers JPC=2++. Recently, it was proposed that the f2(1270) is a molecular state made from the attractive interaction of two ρ mesons. Such a state would be expected to decay strongly to final states with charged pions due to the dominant decay ρ→π+π-, whereas decay to two neutral pions would likely be suppressed. Here, we measure for the first time the reaction γp→π0π0p, using the CEBAF Large Acceptance Spectrometer detector at Jefferson Lab for incident beam energies between 3.6 and 5.4 GeV. Differential cross sections, dσ/dt, for f2(1270) photoproduction are extracted with good precision due to low backgrounds and are compared to theoretical calculations.

Original language	English
Article number	082002
Journal	Physical Review Letters
Volume	126
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.126.082002
Publication status	Published - 25 Feb 2021

Bibliographical note

Funding Information:
The authors thank Professor J-J. Xie and Professor E. Oset for providing us the cross-section predictions from the model described in Ref. for the energy and momentum-transfer range covered by the data presented in this Letter. The authors acknowledge the staff of the Accelerator and Physics Divisions at the Thomas Jefferson National Accelerator Facility who made this experiment possible. This work was supported in part by the Chilean Comisión Nacional de Investigación Científica y Tecnolgica (CONICYT), by CONICYT PIA Grant No. ACT1413, the Italian Istituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientifique, the French Commissariat á lEnergie Atomique, the United Kingdom Science and Technology Facilities Council (STFC), the Scottish Universities Physics Alliance (SUPA), the National Research Foundation of Korea, and the U.S. National Science Foundation. V. M. acknowledges support from the Community of Madrid through the Programa de Atracción de Talento Investigador 2018-T1/TIC-10313 and from the Spanish national Grant No. PID2019–106080 GB-C21. The Southeastern Universities Research Association operates the Thomas Jefferson National Accelerator Facility for the U.S. Department of Energy under Contract No. DE-AC05-06OR23177.

Publisher Copyright:
© 2021 American Physical Society.

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10.1103/PhysRevLett.126.082002

PRL_f2_1270_Author-3878025-2020-10-19-v13Accepted author manuscript, 455 KB

https://link.aps.org/doi/10.1103/PhysRevLett.126.082002

Cite this

@article{05fa1bf5426b41989e53f95c4621e322,

title = "Photoproduction of the f2 (1270) Meson Using the CLAS Detector",

abstract = "The quark structure of the f2(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq¯) resonance with quantum numbers JPC=2++. Recently, it was proposed that the f2(1270) is a molecular state made from the attractive interaction of two ρ mesons. Such a state would be expected to decay strongly to final states with charged pions due to the dominant decay ρ→π+π-, whereas decay to two neutral pions would likely be suppressed. Here, we measure for the first time the reaction γp→π0π0p, using the CEBAF Large Acceptance Spectrometer detector at Jefferson Lab for incident beam energies between 3.6 and 5.4 GeV. Differential cross sections, dσ/dt, for f2(1270) photoproduction are extracted with good precision due to low backgrounds and are compared to theoretical calculations.",

author = "{(CLAS Collaboration)} and M. Carver and A. Celentano and K. Hicks and L. Marsicano and V. Mathieu and A. Pilloni and Adhikari, {K. P.} and S. Adhikari and Amaryan, {M. J.} and G. Angelini and H. Atac and Baltzell, {N. A.} and L. Barion and M. Battaglieri and I. Bedlinskiy and F. Benmokhtar and A. Bianconi and Biselli, {A. S.} and M. Bondi and F. Boss{\`u} and S. Boiarinov and Briscoe, {W. J.} and Brooks, {W. K.} and D. Bulumulla and Burkert, {V. D.} and Carman, {D. S.} and Carvajal, {J. C.} and P. Chatagnon and T. Chetry and G. Ciullo and L. Clark and Clary, {B. A.} and Cole, {P. L.} and M. Contalbrigo and V. Crede and A. D'Angelo and N. Dashyan and {De Vita}, R. and M. Defurne and A. Deur and S. Diehl and C. Djalali and S. Fegan and Q. Huang and D. Jenkins and Watts, {D. P.} and K. Wei and X. Wei and N. Zachariou and J. Zhang",

note = "Funding Information: The authors thank Professor J-J. Xie and Professor E. Oset for providing us the cross-section predictions from the model described in Ref. for the energy and momentum-transfer range covered by the data presented in this Letter. The authors acknowledge the staff of the Accelerator and Physics Divisions at the Thomas Jefferson National Accelerator Facility who made this experiment possible. This work was supported in part by the Chilean Comisi{\'o}n Nacional de Investigaci{\'o}n Cient{\'i}fica y Tecnolgica (CONICYT), by CONICYT PIA Grant No. ACT1413, the Italian Istituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientifique, the French Commissariat {\'a} lEnergie Atomique, the United Kingdom Science and Technology Facilities Council (STFC), the Scottish Universities Physics Alliance (SUPA), the National Research Foundation of Korea, and the U.S. National Science Foundation. V. M. acknowledges support from the Community of Madrid through the Programa de Atracci{\'o}n de Talento Investigador 2018-T1/TIC-10313 and from the Spanish national Grant No. PID2019–106080 GB-C21. The Southeastern Universities Research Association operates the Thomas Jefferson National Accelerator Facility for the U.S. Department of Energy under Contract No. DE-AC05-06OR23177. Publisher Copyright: {\textcopyright} 2021 American Physical Society.",

year = "2021",

month = feb,

day = "25",

doi = "10.1103/PhysRevLett.126.082002",

language = "English",

volume = "126",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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TY - JOUR

T1 - Photoproduction of the f2 (1270) Meson Using the CLAS Detector

AU - (CLAS Collaboration)

AU - Carver, M.

AU - Celentano, A.

AU - Hicks, K.

AU - Marsicano, L.

AU - Mathieu, V.

AU - Pilloni, A.

AU - Adhikari, K. P.

AU - Adhikari, S.

AU - Amaryan, M. J.

AU - Angelini, G.

AU - Atac, H.

AU - Baltzell, N. A.

AU - Barion, L.

AU - Battaglieri, M.

AU - Bedlinskiy, I.

AU - Benmokhtar, F.

AU - Bianconi, A.

AU - Biselli, A. S.

AU - Bondi, M.

AU - Bossù, F.

AU - Boiarinov, S.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Bulumulla, D.

AU - Burkert, V. D.

AU - Carman, D. S.

AU - Carvajal, J. C.

AU - Chatagnon, P.

AU - Chetry, T.

AU - Ciullo, G.

AU - Clark, L.

AU - Clary, B. A.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Crede, V.

AU - D'Angelo, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - Defurne, M.

AU - Deur, A.

AU - Diehl, S.

AU - Djalali, C.

AU - Fegan, S.

AU - Huang, Q.

AU - Jenkins, D.

AU - Watts, D. P.

AU - Wei, K.

AU - Wei, X.

AU - Zachariou, N.

AU - Zhang, J.

N1 - Funding Information: The authors thank Professor J-J. Xie and Professor E. Oset for providing us the cross-section predictions from the model described in Ref. for the energy and momentum-transfer range covered by the data presented in this Letter. The authors acknowledge the staff of the Accelerator and Physics Divisions at the Thomas Jefferson National Accelerator Facility who made this experiment possible. This work was supported in part by the Chilean Comisión Nacional de Investigación Científica y Tecnolgica (CONICYT), by CONICYT PIA Grant No. ACT1413, the Italian Istituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientifique, the French Commissariat á lEnergie Atomique, the United Kingdom Science and Technology Facilities Council (STFC), the Scottish Universities Physics Alliance (SUPA), the National Research Foundation of Korea, and the U.S. National Science Foundation. V. M. acknowledges support from the Community of Madrid through the Programa de Atracción de Talento Investigador 2018-T1/TIC-10313 and from the Spanish national Grant No. PID2019–106080 GB-C21. The Southeastern Universities Research Association operates the Thomas Jefferson National Accelerator Facility for the U.S. Department of Energy under Contract No. DE-AC05-06OR23177. Publisher Copyright: © 2021 American Physical Society.

PY - 2021/2/25

Y1 - 2021/2/25

N2 - The quark structure of the f2(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq¯) resonance with quantum numbers JPC=2++. Recently, it was proposed that the f2(1270) is a molecular state made from the attractive interaction of two ρ mesons. Such a state would be expected to decay strongly to final states with charged pions due to the dominant decay ρ→π+π-, whereas decay to two neutral pions would likely be suppressed. Here, we measure for the first time the reaction γp→π0π0p, using the CEBAF Large Acceptance Spectrometer detector at Jefferson Lab for incident beam energies between 3.6 and 5.4 GeV. Differential cross sections, dσ/dt, for f2(1270) photoproduction are extracted with good precision due to low backgrounds and are compared to theoretical calculations.

AB - The quark structure of the f2(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq¯) resonance with quantum numbers JPC=2++. Recently, it was proposed that the f2(1270) is a molecular state made from the attractive interaction of two ρ mesons. Such a state would be expected to decay strongly to final states with charged pions due to the dominant decay ρ→π+π-, whereas decay to two neutral pions would likely be suppressed. Here, we measure for the first time the reaction γp→π0π0p, using the CEBAF Large Acceptance Spectrometer detector at Jefferson Lab for incident beam energies between 3.6 and 5.4 GeV. Differential cross sections, dσ/dt, for f2(1270) photoproduction are extracted with good precision due to low backgrounds and are compared to theoretical calculations.

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U2 - 10.1103/PhysRevLett.126.082002

DO - 10.1103/PhysRevLett.126.082002

M3 - Article

C2 - 33709753

SN - 0031-9007

VL - 126

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 082002

ER -

Photoproduction of the f2 (1270) Meson Using the CLAS Detector

Abstract

Bibliographical note

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Nuclear Physics Consolidated Grant 2021-2024

Cite this

Photoproduction of the f2 (1270) Meson Using the CLAS Detector

Abstract

Bibliographical note

Access to Document

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Projects

Nuclear Physics Consolidated Grant 2021-2024

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