Longitudinal Electroproduction of Charged Pions from
Journal Article
·
· Physical Review Letters
Separated longitudinal and transverse cross sections for charged pion electroproduction from {sup 1}H, {sup 2}H, and {sup 3}He were measured at Q{sup 2} = 0.4 (GeV/c){sup 2} for two values of the invariant mass, {bar W} = 1.15 GeV and {bar W} = 1.60 GeV, in a search for a mass dependence which would signal the effect of nuclear pions. This is the first such study that includes recoil momenta significantly above the Fermi surface. The longitudinal cross section, if dominated by the pion-pole process, should be sensitive to nuclear pion currents. Comparisons of the longitudinal cross section target ratios to a quasifree calculation reveal a significant suppression in {sup 3>}He at {bar W} = 1.60 GeV. The {bar W} = 1.15 GeV results are consistent with simple estimates of the effect of nuclear pion currents, but are also consistent with pure quasifree production.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 804107
- Report Number(s):
- JLAB-PHY-01-41; DOE/ER/40150-2324
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 87; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pion Electroproduction form Helium 3, Deuterium, and Hydrogen
The Pion Charge Form Factor Through Pion Electroproduction
Longitudinal Lelectroproduction of Charged Pions on Hydrogen, Deuterium, and Helium 3
Thesis/Dissertation
·
Wed May 01 00:00:00 EDT 2002
·
OSTI ID:824440
The Pion Charge Form Factor Through Pion Electroproduction
Thesis/Dissertation
·
Sat Dec 31 23:00:00 EST 2005
·
OSTI ID:955630
Longitudinal Lelectroproduction of Charged Pions on Hydrogen, Deuterium, and Helium 3
Thesis/Dissertation
·
Wed Mar 21 23:00:00 EST 2001
·
OSTI ID:825022