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

Unitary constraints on charged pion photoproduction at large p⊥

Journal Article · · Physics Letters. B
 [1]
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Around $$\theta_{\pi}=$$90$$^\circ$$, the coupling to the $$\rho^\circ N$$ channel leads to a good accounting of the charged pion exclusive photoproduction cross section in the energy range 3 < Eγ < 10 GeV, where experimental data exist. Starting from a Regge Pole approach that successfully describes vector meson production, the singular part of the corresponding box diagrams (where the intermediate vector meson-baryon pair propagates on-shell) is evaluated without any further assumptions (unitarity). Such a treatment provides an explanation of the $$s^{-7}$$ scaling of the cross section. Furthermore, elastic rescattering of the charged pion improves the basic Regge pole model at forward and backward angles.
Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
AC05-06OR23177
OSTI ID:
982215
Alternate ID(s):
OSTI ID: 21355790
Report Number(s):
DOE/OR/23177--1060; JLAB-THY--09-1112
Journal Information:
Physics Letters. B, Journal Name: Physics Letters. B Journal Issue: 2-3 Vol. 685; ISSN 0370-2693
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (43)

Large momentum transfer electroproduction of mesons journal November 2000
Pion photoproduction on few body systems journal March 1981
Energy dependence of the elastic diffraction slopes journal February 1972
Perturbative QCD predictions for large momentum transfer photoproduction journal February 1991
Twisted CFT and bilayer quantum Hall systems in the presence of an impurity journal October 2003
Erratum to: “Real and virtual Compton scattering in a Regge approach” journal October 2003
Exclusive ρ0 meson electroproduction from hydrogen at CLAS journal January 2005
Real and virtual Compton scattering in a Regge approach journal January 2003
Pseudoscalar meson photoproduction at high energies: from the Regge regime to the hard scattering regime journal May 1997
Pion and kaon photoproduction at high energies: forward and intermediate angles journal December 1997
Comments on the σ and κ conference January 2004
Cross section measurements of charged pion photoproduction in hydrogen and deuterium from 1.1 to 5.5 GeV journal April 2005
Rescattering in meson photoproduction from few body systems journal April 2006
Investigation of ρ -meson production in π p interactions at 3.9 GeV / c journal September 1974
Measurements of exclusive photoproduction processes at large values of t and u from 4 to 7.5 GeV journal August 1976
Exclusive processes in perturbative quantum chromodynamics journal November 1980
Anomalous magnetic moment and limits on fermion substructure journal November 1980
Compton scattering, vector-meson photoproduction, and the partonic structure of the nucleon journal March 2002
Measurement of the Differential Cross Section for the Reaction γ n → π − p from Deuterium journal July 2009
Precision Microwave Measurement of the23P1−23P2Interval in Atomic Helium journal April 2000
Exclusive ρ0 electroproduction on the proton at CLAS journal December 2008
Signatures of the handbag mechanism in wide-angle photoproduction of pseudoscalar mesons journal March 2004
Photoproduction of the rho0 Meson on the Proton at Large Momentum Transfer text January 2001
DRAFT: Photoproduction of the $ρ^0$ meson on the proton at large momentum transfer text January 2001
Photoproduction of Vector Mesons at Large Transfer text January 2000
Perturbative and non-perturbative QCD corrections to wide-angle Compton scattering text January 2001
The space-time structure of hard scattering processes text January 2004
Perturbative and non-perturbative QCD corrections to wide-angle Compton scattering journal March 2002
Perturbative QCD predictions for large momentum transfer photoproduction journal February 1991
Photoproduction of vector mesons at large momentum transfer journal September 2000
Real and virtual Compton scattering in a Regge approach journal January 2003
Pseudoscalar meson photoproduction at high energies: from the Regge regime to the hard scattering regime journal May 1997
Pion and kaon photoproduction at high energies: forward and intermediate angles journal December 1997
Review of Particle Physics journal July 2004
Cross section measurements of charged pion photoproduction in hydrogen and deuterium from 1.1 to 5.5 GeV journal April 2005
Rescattering in meson photoproduction from few body systems journal April 2006
Investigation of ρ -meson production in π p interactions at 3.9 GeV / c journal September 1974
Measurements of exclusive photoproduction processes at large values of t and u from 4 to 7.5 GeV journal August 1976
Anomalous magnetic moment and limits on fermion substructure journal November 1980
Compton scattering, vector-meson photoproduction, and the partonic structure of the nucleon journal March 2002
Space-time structure of hard-scattering processes journal September 2004
Measurement of the Differential Cross Section for the Reaction γ n → π − p from Deuterium journal July 2009
Photoproduction of the ρ 0 Meson on the Proton at Large Momentum Transfer journal October 2001

Cited By (1)

Exclusive π 0 electroproduction at W > 2  GeV with CLAS journal August 2014

Similar Records

Unitary constraints on Deeply Virtual Compton Scattering
Journal Article · Thu Nov 01 00:00:00 EDT 2007 · Phys.Rev.C · OSTI ID:910929

Unitary constraints on neutral pion electroproduction
Journal Article · Tue Nov 09 19:00:00 EST 2010 · Physics Letters. B · OSTI ID:1003852

Unitarity constraints on deeply virtual Compton scattering
Journal Article · Wed Nov 14 23:00:00 EST 2007 · Physical Review. C, Nuclear Physics · OSTI ID:21067873