How much of the nucleon spin is carried by glue?

被引：39

作者：

Balitsky, I

Ji, XD

机构：

[1] JEFFERSON LAB,NEWPORT NEWS,VA 23606

[2] UNIV MARYLAND,DEPT PHYS,COLLEGE PK,MD 20742

[3] MIT,DEPT PHYS,CAMBRIDGE,MA 02139

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.79.1225

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We estimate in the QCD sum rule approach the amount of the nucleon spin carried by the gluon angular momentum: the sum of the gluon spin and orbital angular momenta. The result indicates that gluons contribute at least one half of the nucleon spin at the scale of I GeV2.

引用

页码：1225 / 1228

页数：4

共 23 条

[1]

ALTARELLI G, HEPPH9710289

[2] AN INVESTIGATION OF THE SPIN STRUCTURE OF THE PROTON IN DEEP INELASTIC-SCATTERING OF POLARIZED MUONS ON POLARIZED PROTONS [J].

ASHMAN, J ;

BADELEK, B ;

BAUM, G ;

BEAUFAYS, J ;

BEE, CP ;

BENCHOUK, C ;

BIRD, IG ;

BROWN, SC ;

CAPUTO, MC ;

CHEUNG, HWK ;

CHIMA, JS ;

CIBOROWSKI, J ;

CLIFFT, R ;

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 ;

GAMET, R ;

GIBSON, V ;

GILLIES, J ;

GRAFSTROM, P ;

HAMACHER, K ;

HARRACH, DV ;

HAYMAN, PJ ;

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 ;

MONTANET, F .

NUCLEAR PHYSICS B, 1989, 328 (01) :1-35

[3]

BALITSKII YY, 1985, SOV J NUCL PHYS+, V41, P178

[4] POWER CORRECTIONS 1/Q2 TO PARTON SUM-RULES FOR DEEP INELASTIC-SCATTERING FROM POLARIZED NUCLEONS [J].

BALITSKY, II ;

BRAUN, VM ;

KOLESNICHENKO, AV .

PHYSICS LETTERS B, 1990, 242 (02) :245-250

[5] PROTON AND NEUTRON MAGNETIC-MOMENTS FROM QCD SUM-RULES [J].

BALITSKY, II ;

YUNG, AV .

PHYSICS LETTERS B, 1983, 129 (05) :328-334

[6] EXOTIC MESONS WITH JPC =1-+, STRANGE AND NON-STRANGE [J].

BALITSKY, II ;

DYAKONOV, DI ;

YUNG, AV .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1986, 33 (02) :265-273

[7] ON THE VIRTUAL GAMMA-GAMMA-ANNIHILATION TO HADRONS [J].

BALITSKY, II .

PHYSICS LETTERS B, 1982, 114 (01) :53-57

[8] SCALE DEPENDENCE AND SMALL-X BEHAVIOR OF POLARIZED PARTON DISTRIBUTIONS [J].

BALL, RD ;

FORTE, S ;

RIDOLFI, G .

NUCLEAR PHYSICS B, 1995, 444 (1-2) :287-309

[9] THE 2ND MOMENTS OF QUARK AND GLUON DISTRIBUTION-FUNCTIONS IN NUCLEON [J].

BELYAEV, VM ;

BLOK, BY .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1986, 30 (02) :279-286

[10] Status of the proton spin problem [J].

Cheng, HY .

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 1996, 11 (29) :5109-5181

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