Published October 1, 2004 | Version v1
Miscellaneous

Measurement of R = σL/σT and the Separated Longitudinal and Transverse Structure Functions in the Nucleon Resonance Region

Description

We report on a detailed study of longitudinal strength in the nucleon resonance region, presenting new results from inclusive electron-proton cross sections measured at Jefferson Lab Hall C in the four-momentum transfer range 0.2 < Q2 < 5.5 GeV2. The data have been used to accurately perform over 170 Rosenbluth-type longitudinal/transverse separations. The precision R σL/σT data are presented here, along with the first separate values of the inelastic structure functions F1 and FL in this regime. The resonance longitudinal component is found to be significant. With the new data, quark-hadron duality is observed above Q2 = 1 GeV2 in the separated structure functions independently

Availability note (English)

Available from PURL: https://www.osti.gov/servlets/purl/836275-JWsoY0/native/

Additional details

Publishing Information

Imprint Pagination
143.4 Kilobytes
Report number
JLAB-PHY--04-45

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
36026591
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ACCURACY; CROSS SECTIONS; DUALITY; NUCLEONS; RESONANCE; STRUCTURE FUNCTIONS
Descriptors DEC
BARYONS; ELEMENTARY PARTICLES; FERMIONS; FUNCTIONS; HADRONS

Optional Information

Contract/Grant/Project number
AC05-84ER40150
Notes
No journal information given for this preprint
Funding organization
USDOE Office of Energy Research (ER) (United States)
Secondary number(s)
DOE/ER--40150-3076; Nucl-ex--0410027