MEASUREMENTS OF THE Q(2)-DEPENDENCE OF THE PROTON AND DEUTERON SPIN STRUCTURE FUNCTIONS G(1)(P) AND G(1)(D)

Authors
ABE K AKAGI T ANTHONY PL ANTONOV R ARNOLD RG AVERETT T BAND HR BAUER JM BOREL H BOSTED PE BRETON V BUTTONSHAFER J CHEN JP CHUPP TE CLENDENIN J COMPTOUR C COULTER KP COURT G CRABB D DAOUDI M DAY D DIETRICH FS DUNNE J DUTZ H ERBACHER R FELLBAUM J FELTHAM A FONVIEILLE H FRLEZ E GARVEY D GEARHART R GOMEZ J GRENIER P GRIFFIOEN KA HOIBRATEN S HUGHES EW HYDEWRIGHT C JOHNSON JR KAWALL D KLEIN A KUHN SE KURIKI M LINDGREN R LIU TJ LOMBARDNELSEN RM MARRONCLE J MARUYAMA T MARUYAMA XK MCCARTHY J MEYER W MEZIANI ZE MINEHART R MITHCHELL J MORGENSTERN J PETRATOS GG PITTHAN R POCANIC D PRESCOTT C PREPOST R RAINES P RAUE B REYNA D RIJLLART A ROBLIN Y ROCHESTER LS ROCK SE RONDON OA SICK I SMITH LC SMITH TB SPENGOS M STALEY F STEINER P LORANT SS STUART LM SUEKANE F SZALATA ZM TANG H TERRIEN Y USHER T WALZ D WHITE JL WITTE K YOUNG CC YOUNGMAN B YUTA H ZAPALAC G ZIHLMANN B ZIMMERMANN D
Citation
K. Abe et al., MEASUREMENTS OF THE Q(2)-DEPENDENCE OF THE PROTON AND DEUTERON SPIN STRUCTURE FUNCTIONS G(1)(P) AND G(1)(D), Physics letters. Section B, 364(1), 1995, pp. 61-68
Citations number
43
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
364
Issue
1
Year of publication
1995
Pages
61 - 68
Database
ISI
SICI code
0370-2693(1995)364:1<61:MOTQOT>2.0.ZU;2-Y
Abstract
The ratio g(1)/F-1 has been measured over the range 0.03 < x < 0.6 and 0.3 < Q(2) < 10 (GeV/c)(2) using deep-inelastic scattering of polariz ed electrons from polarized protons and deuterons. We find g(1)/F-1 to be consistent with no Q(2)-dependence at fixed x in the deep-inelasti c region Q(2) > 1 (GeV/c)(2). A trend is observed for g(1)/F-1 to decr ease at lower Q(2). Fits to world data with and without a possible Q(2 )-dependence in g(1)/F-1 are in agreement with the Bjorken sum rule, b ut Delta q is substantially less than the quark-parton model expectati on.