Electroproduction of single pions at low epsilon and a measurement of the pion form factor up to Q/sup 2/ = 10 GeV/sup 2/

Journal Article · Sat Apr 01 00:00:00 EST 1978 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.17.1693· OSTI ID:6842534

Bebek, C J; Brown, C N; Holmes, S D; Kline, R V; Pipkin, F M; Raither, S; Sisterson, L K; Browman, A; Hanson, K M; Larson, D; Silverman, A

We report measurements of the electroproduction of single charged pions from hydrogen and deuterium targets for values of epsilon in the range 0.35 < epsilon < 0.45. Data were taken with a hydrogen target at the (W,Q/sup 2/) points (2.15 GeV, 1.2 GeV/sup 2/), (2.65, 2.0), (2.65, 3.4), (2.65, 6.0), and (2.65, 10.0). Data were taken with a deuterium target at the (W, Q/sup 2/) points (2.15, 1.2) and (2.65, 2.0). The transverse cross section obtained by using these data in conjunction with earlier data at high epsilon to separate the longitudinal and transverse components is used in conjunction with the new data and the t-channel Born term to determine the pion form factor and to re-evaluate previously reported measurements. In the range 0.15 GeV/sup 2/ < Q/sup 2/ < 10.0 GeV/sup 2/ the pion form factor can be described by the simple pole form (1 + Q/sup 2//(0.462 +- 0.024))/sup -/1.

• Research Organization: High Energy Physics Laboratory, Harvard University, Cambridge, Massachusetts 02138
• OSTI ID: 6842534
• Journal Information: Phys. Rev., D; (United States), Vol. 17:7
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-DEUTERON INTERACTIONS
ELECTROPRODUCTION
ELECTRON-PROTON INTERACTIONS
PIONS
FORM FACTORS
ANGULAR DISTRIBUTION
CHERENKOV COUNTERS
CROSS SECTIONS
GEV RANGE
SPARK CHAMBERS
T CHANNEL
BASIC INTERACTIONS
BOSONS
DISTRIBUTION
ELECTROMAGNETIC INTERACTIONS
ELECTRON-NUCLEON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GAS TRACK DETECTORS
HADRONS
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MEASURING INSTRUMENTS
MESONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PSEUDOSCALAR MESONS
RADIATION DETECTORS
645101* - High Energy Physics- Particle Interactions &amp; Properties-Experimental- Electromagnetic Interactions &amp; Properties