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

Electroproduction of $$\phi(1020)$$ Mesons at High $Q^2$ with CLAS

Journal Article · · Physical Review C
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
http://dx.doi.org/10.1103/PhysRevC.78.025210
Electroproduction of exclusive $$\phi$$ vector mesons has been studied with the CLAS detector in the kinematical range $$1.6\leq Q^2\leq 3.8$$ GeV$$^{2}$$, $$0.0\leq t^{\prime}\leq 3.6$$ GeV$$^{2}$$, and $$2.0\leq W\leq 3.0$$ GeV. The scaling exponent for the total cross section as $$1/(Q^2+M_{\phi}^2)^n$$ was determined to be $$n=2.49\pm 0.33$$. The slope of the four-momentum transfer $t'$ distribution is $$b_{\phi}=0.98 \pm 0.17$$ GeV$$^{-2}$$. The data are consistent with the assumption of s-channel helicity conservation (SCHC). Under this assumption, we determine the ratio of longitudinal to transverse cross sections to be $$R=0.86 \pm 0.24$$. A 2-gluon exchange model is able to reproduce the main features of the data.
Research Organization:
Thomas Jefferson Lab National Accelerator Facility
Sponsoring Organization:
USDOE
OSTI ID:
955857
Report Number(s):
JLAB-PHY-08-810; arXiv:0803.3537; DOE/OR/23177-0359
Journal Information:
Physical Review C, Journal Name: Physical Review C Vol. 78; ISSN 0556-2813; ISSN PRVCAN
Country of Publication:
United States
Language:
English

References (33)

Exclusive channels in semi-inclusive production of pions and kaons journal August 2005
How to analyse vector-meson production in inelastic lepton scattering journal September 1973
Real and virtual Compton scattering in a Regge approach journal January 2003
Deeply virtual and exclusive electroproduction of ω-mesons journal June 2005
Space-time structure of hard-scattering processes journal September 2004
Diffractive leptoproduction of vector mesons in QCD journal September 1994
Exclusive ρ0 meson electroproduction from hydrogen at CLAS journal January 2005
Corrected Article: Exclusive electroproduction of φ mesons at 4.2 GeV [Phys. Rev. C 63 , 065205 (2001)] journal October 2001
Vector meson production from a polarized nucleon journal September 2007
The CLAS forward electromagnetic calorimeter
  • Amarian, M.; Asryan, G.; Beard, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 460, Issue 2-3 https://doi.org/10.1016/S0168-9002(00)00996-7
journal March 2001
Factorization for hard exclusive electroproduction of mesons in QCD journal September 1997
Exclusive electroproduction of ϕ mesons at HERA journal July 2005
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
Pomeron Physics and QCD book January 2002
Electroproduction of ϕ Mesons journal August 1977
QED radiative corrections in processes of exclusive pion electroproduction journal October 2002
The longitudinal cross section of vector meson electroproduction journal March 2007
Photoproduction of φ ( 1020 ) Mesons on the Proton at Large Momentum Transfer journal November 2000
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
Exclusive photo- and electroproduction of vector mesons at large momentum transfer journal January 1995
Measurement of elastic electroproduction of mesons at HERA journal June 2000
Compton scattering, vector-meson photoproduction, and the partonic structure of the nucleon journal March 2002
Measurement of diffractive photoproduction of vector mesons at large momentum transfer at HERA journal January 2000
The hadronic properties of the photon in high-energy interactions journal April 1978
Spectrometer study of φ -meson electroproduction journal June 1979
Hard diffractive electroproduction of vector mesons in QCD journal September 1996
Photoproduction of vector mesons at large momentum transfer journal September 2000
Exclusive leptoproduction of $\rho^0$ mesons from hydrogen at intermediate virtual photon energies journal November 2000
SMALL-χ PHYSICS: From HERA to LHC and Beyond journal December 2005
On the analysis of vector-meson production by polarized photons journal February 1970
Proton dissociative $\rho$ and elastic $\phi$ electroproduction at HERA journal August 1997
The CLAS Cherenkov detector
  • Adams, G.; Burkert, V.; Carl, R.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 465, Issue 2-3 https://doi.org/10.1016/S0168-9002(00)01313-9
journal June 2001
Exclusive ρ 0 , ω , and φ electroproduction journal December 1981

Similar Records

Electroproduction of phi(1020) Mesons
Conference · Mon May 21 00:00:00 EDT 2007 · OSTI ID:914648
Electroproduction of {phi}(1020) mesons at 1.4{<=}Q{sup 2}{<=}3.8 GeV{sup 2} measured with the CLAS spectrometer
Journal Article · Fri Aug 15 00:00:00 EDT 2008 · Physical Review. C, Nuclear Physics · OSTI ID:21192145
Electroproduction of Φ(1020) Mesons at High Q2 with CLAS
Thesis/Dissertation · Thu Oct 11 00:00:00 EDT 2007 · OSTI ID:955478

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CROSS SECTIONS
DISTRIBUTION
ELECTROPRODUCTION
HELICITY
MESONS
PERIPHERAL MODELS
S CHANNEL
TOTAL CROSS SECTIONS
VECTOR MESONS