PARTONS AND THE EMC SPIN EFFECT

被引：20

作者：

BASS, SD

机构：

[1] UNIV ADELAIDE,DEPT PHYS & MATH PHYS,ADELAIDE,SA 5001,AUSTRALIA

[2] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND

[3] UNIV WASHINGTON,DEPT PHYS FM15,SEATTLE,WA 98195

[4] UNIV WASHINGTON,INST NUCL THEORY HN12,SEATTLE,WA 98195

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1992年 / 55卷 / 04期

关键词：

D O I：

10.1007/BF01561304

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We focus on the parton model and the role of the axial anomaly in polarised deep inelastic scattering. We show that the axial anomaly is relevant to each of the higher moments of the spin dependent structure function g1(x) and not just the first moment. This result implies that the factorisation of mass singularities is not sufficient to define the parton model in spin dependent QCD. (It is certainly a necessary condition.) We also need to consider the locality of the photon parton interaction. The anomaly is observed over all x in the EMC g1(x) data.

引用

页码：653 / 658

页数：6

共 44 条

[1] AXIAL-VECTOR VERTEX IN SPINOR ELECTRODYNAMICS [J].

ADLER, SL .

PHYSICAL REVIEW, 1969, 177 (5P2) :2426-&

[2]

Altarelli G., 1989, Particle World, V1, P40

[3] THE ANOMALOUS GLUON CONTRIBUTION TO POLARIZED LEPTOPRODUCTION [J].

ALTARELLI, G ;

ROSS, GG .

PHYSICS LETTERS B, 1988, 212 (03) :391-396

[4]

Altarelli G., 1982, Physics Reports, V81, P1, DOI 10.1016/0370-1573(82)90127-2

[5] ASYMPTOTIC FREEDOM IN PARTON LANGUAGE [J].

ALTARELLI, G ;

PARISI, G .

NUCLEAR PHYSICS B, 1977, 126 (02) :298-318

[6] A MEASUREMENT OF THE SPIN ASYMMETRY AND DETERMINATION OF THE STRUCTURE-FUNCTION G1 IN DEEP INELASTIC MUON PROTON-SCATTERING [J].

ASHMAN, J ;

BADELEK, B ;

BAUM, G ;

BEAUFAYS, J ;

BEE, CP ;

BENCHOUK, C ;

BIRD, IG ;

BROWN, SC ;

CAPUTO, MC ;

CHEUNG, HWK ;

CHIMA, J ;

CIBOROWSKI, J ;

CLIFFT, RW ;

COIGNET, G ;

COMBLEY, F ;

COURT, G ;

DAGOSTINI, G ;

DREES, J ;

DUREN, M ;

DYCE, N ;

EDWARDS, AW ;

EDWARDS, M ;

ERNST, T ;

FERRERO, MI ;

FRANCIS, D ;

GABATHULER, E ;

GAJEWSKI, J ;

GAMET, R ;

GIBSON, V ;

GILLIES, J ;

GRAFSTROM, P ;

HAMACHER, K ;

VONHARRACH, D ;

HAYMAN, P ;

HOLT, JR ;

HUGHES, VW ;

JACHOLKOWSKA, A ;

JONES, T ;

KABUSS, EM ;

KORZEN, B ;

KRUNER, U ;

KULLANDER, S ;

LANDGRAF, U ;

LANSKE, D ;

LETTENSTROM, F ;

LINDQVIST, T ;

LOKEN, J ;

MATTHEWS, M ;

MIZUNO, Y ;

MONIG, K .

PHYSICS LETTERS B, 1988, 206 (02) :364-370

[7]

ASHMAN J, 1990, NUCL PHYS B, V328, P1

[8]

Bass S. D., 1991, Journal of the Moscow Physical Society, V1, P317

[9]

BASS SD, IN PRESS INT J MOD A

[10]

BASS SD, 1990, ADP90133T80 U AD PRE

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