Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Photoproduction of the f1(1285) meson

Journal Article · · Physical Review C
 [1]; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
  1. Mississippi State University
The f1 (1285) meson with mass 1281.0 ± 0.8 MeV/c2 and width 18.4 ± 1.4 MeV (full width at half maximum) was measured for the first time in photoproduction from a proton target using CLAS at Jefferson Lab. Differential cross sections were obtained via the ηπ + π -, K+ K0 π -, and K-K0 π+ decay channels from threshold up to a center-of-mass energy of 2.8 GeV. The mass, width, and an amplitude analysis of the ηπ + π- final-state Dalitz distribution are consistent with the axial-vector JP = 1+ f1 (1285) identity, rather than the pseudoscalar 0-η (1295). The production mechanism is more consistent with s -channel decay of a high-mass N * state and not with t -channel meson exchange. Decays to η π π go dominantly via the intermediate a$$^±_0$$ (980) π states, with the branching ratio Γ [a0π (no $$\overline{K}K$$) ] / Γ [ηππ (all) ] = 0.74 ± 0.09 . The branching ratios Γ ($$\overline{K}K$$ π )/ Γ (ηππ) = 0.216 ± 0.033 and Γ (γρ0) / Γ (ηππ) = 0.047 ± 0.018 were also obtained. The first is in agreement with previous data for the f1 (1285), while the latter is lower than the world average.
Research Organization:
Mississippi State Univ., Mississippi State, MS (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Organization:
CLAS Collaboration
Grant/Contract Number:
AC05-06OR23177; FG02-07ER41528; FG02-87ER40315
OSTI ID:
1604564
Alternate ID(s):
OSTI ID: 1366475
OSTI ID: 1256385
OSTI ID: 1256692
Journal Information:
Physical Review C, Journal Name: Physical Review C Journal Issue: 6 Vol. 93; ISSN PRVCAN; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (58)

Study of the ηπ+π− system centrally producedin the reactionpp→p f (ηπ+π−)p s at 300 GeV/c journal September 1991
Evidence for a non-strange meson of mass 1290 MeV journal July 1965
On the apparent shift of the rho meson mass in photoproduction journal January 1966
Coupled-channel analysis of the πη and KK̄ systems near KK̄ threshold journal July 1976
Study on the ηπ+π− system in the π−p charge exchange reaction at 8.95 GeV/c journal September 1991
A phenomenological model for pseudoscalar meson mixing journal January 1979
Spin and parity of the D0(1285) meson journal December 1980
The CLAS drift chamber system
  • Mestayer, M. D.; Carman, D. S.; Asavapibhop, B.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 449, Issue 1-2 https://doi.org/10.1016/S0168-9002(00)00151-0
journal July 2000
The CEBAF large acceptance spectrometer (CLAS)
  • Mecking, B. A.; Adams, G.; Ahmad, S.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 503, Issue 3 https://doi.org/10.1016/S0168-9002(03)01001-5
journal May 2003
The time-of-flight system for CLAS
  • Smith, E. S.; Carstens, T.; Distelbrink, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 432, Issue 2-3 https://doi.org/10.1016/S0168-9002(99)00484-2
journal August 1999
The bremsstrahlung tagged photon beam in Hall B at JLab
  • Sober, D. I.; Crannell, Hall; Longhi, Alberto
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 440, Issue 2 https://doi.org/10.1016/S0168-9002(99)00784-6
journal February 2000
Light resonances in K0SK±π∓ and ηπ+π− final states in γγ collisions at LEP journal March 2001
Observation of pseudoscalar and axial vector resonances in π−p→K+K−π0n at 18 GeV journal September 2001
f1(1285) formation in two-photon collisions at LEP journal February 2002
A study of the centrally produced π+π−π+π− channel in pp interactions at 450 GeV/c journal November 1997
A study of the channel produced centrally in pp interactions at 450 GeV/c journal November 1997
A measurement of the branching fractions of the f1(1285) and f1(1420) produced in central pp interactions at 450 GeV/c journal November 1998
A spin analysis of the 4π channels produced in central pp interactions at 450 GeV/c journal January 2000
A new highly segmented start counter for the CLAS detector
  • Sharabian, Y. G.; Battaglieri, M.; Burkert, V. D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 556, Issue 1 https://doi.org/10.1016/j.nima.2005.10.031
journal January 2006
On meson resonances and chiral symmetry journal January 2004
The K K ¯ π decay of the f 1 ( 1285 ) and its nature as a K ⁎ K ¯ − c c molecule journal November 2015
CXII. On the analysis of τ-meson data and the nature of the τ-meson journal October 1953
Review of Particle Physics journal August 2014
Selection Rules for the Dematerialization of a Particle into Two Photons journal January 1950
Differential cross sections for γ + p → K + + Y for Λ and Σ 0 hyperons journal March 2006
Exclusive photoproduction of f 1 ( 1285 ) meson off the proton in kinematics available at the Jefferson Laboratory experimental facilities journal August 2009
Differential cross sections for the reactions γ p → p η and γ p → p η ' journal October 2009
Differential cross sections and spin density matrix elements for the reaction γ p → p ω journal December 2009
Differential cross section and recoil polarization measurements for the γ p → K + Λ reaction using CLAS at Jefferson Lab journal February 2010
Differential cross sections and recoil polarizations for the reaction γ p → K + Σ 0 journal August 2010
Measurement of the Σ π photoproduction line shapes near the Λ ( 1405 ) journal March 2013
Differential photoproduction cross sections of the Σ 0 ( 1385 ) , Λ ( 1405 ) , and Λ ( 1520 ) journal October 2013
Data analysis techniques, differential cross sections, and spin density matrix elements for the reaction γ p → ϕ p journal May 2014
Radiative decays of light-quark S - and P -wave mesons in the covariant oscillator quark model journal September 1989
Radiative decay of J ψ into η ( 1430 ) and nearby states journal July 1990
Partial-wave analysis of DM2 Collaboration data in the η ( 1430 ) energy range journal September 1992
Properties of the a 0 ( 980 ) meson journal November 1998
Partial-wave analysis of the η π + π − system produced in the reaction π − p → η π + π − n at 18   GeV / c journal June 2000
Search for η ( 1475 ) → K S 0 K ± π ∓ in two-photon fusion at the CLEO detector at Cornell journal April 2005
Low lying axial-vector mesons as dynamically generated resonances journal July 2005
Photoproduction through Chern-Simons term induced interactions in holographic QCD journal December 2009
Toward the excited isoscalar meson spectrum from lattice QCD journal November 2013
S -wave K K * interactions in a finite volume and the f 1 ( 1285 ) journal July 2015
K K ¯ π Resonance at 1280 MeV journal June 1965
Evidence for Axial-Vector and Pseudoscalar Resonances near 1.275 GeV in η π + π − journal February 1979
Evidence for Two Pseudoscalar Resonances of the η π + π − System in the D ( 1285 ) and E ι Regions journal September 1986
Spin-Parity Analysis of the Centrally Produced K S 0 K ± π ∓ System at 800 GeV / c journal August 1999
η ′ Photoproduction on the Proton for Photon Energies from 1.527 to 2.227 GeV journal February 2006
Erratum: η ′ Photoproduction on the Proton for Photon Energies from 1.527 to 2.227 GeV [Phys. Rev. Lett. 96 , 062001 (2006)] journal April 2006
The $\gamma p \to na^{+}_{2}(1320) \to n \rho^0 \pi^+$ reactions within an effective Lagrangian approach journal June 2014
Review of Particle Physics text January 2012
Review of Particle Physics text January 2018
Toward the excited isoscalar meson spectrum from lattice QCD text January 2013
A spin analysis of the 4pi channels produced in central pp interactions at 450 GeV/c text January 1999
Low lying axial-vector mesons as dynamically generated resonances text January 2005
eta-prime photoproduction on the proton for photon energies from 1.527 to 2.227 GeV text January 2005
On meson resonances and chiral symmetry text January 2003
Review of Particle Physics text January 2008

Cited By (2)

Fate of the Landau–Yang theorem for twisted photons journal October 2019
Fate of the Landau-Yang theorem for twisted photons text January 2019


Similar Records

Photoproduction of the f1(1285) meson
Journal Article · Wed Jun 01 00:00:00 EDT 2016 · Physical Review C · OSTI ID:1366475

Photoproduction of the f1(1285) meson
Journal Article · Wed Jun 01 00:00:00 EDT 2016 · Physical Review C · OSTI ID:1256692