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)

Ohio University
National Institute for Nuclear Physics
Complutense University
Fondazione Bruno Kessler
Old Dominion University
Florida International University
George Washington University
Temple University
Thomas Jefferson National Accelerator Facility
University of South Carolina
Russian Research Centre Kurchatov Institute
Duquesne University
University of Brescia
Fairfield University
Université Paris-Saclay
Universidad Técnica Federico Santa Maria
CNRS/IN2P3
Mississippi State University
University of Ferrara
University of Glasgow
University of Connecticut
Lamar University
Idaho State University
Florida State University
University of Rome Tor Vergata
A. Alikhanian Yerevan Institute of Physics
Justus Liebig University Giessen
Arizona State University
University of New Hampshire
Argonne National Laboratory

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

8 Scopus citations

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
State	Published - 25 Feb 2021

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10.1103/PhysRevLett.126.082002

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@article{cac5bef85a0e4bd395d2edb976e7a10f,

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 M. Dugger and R. Dupre and H. Egiyan and M. Ehrhart and Alaoui, \{A. El\} and Fassi, \{L. El\} and P. Eugenio and Jo, \{H. S.\}",

note = "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",

number = "8",

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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 - Dugger, M.

AU - Dupre, R.

AU - Egiyan, H.

AU - Ehrhart, M.

AU - Alaoui, A. El

AU - Fassi, L. El

AU - Eugenio, P.

AU - Jo, H. S.

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.

UR - https://www.scopus.com/pages/publications/85102403966

U2 - 10.1103/PhysRevLett.126.082002

DO - 10.1103/PhysRevLett.126.082002

M3 - Article

C2 - 33709753

AN - SCOPUS:85102403966

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

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