SEMIINCLUSIVE POLARIZED LEPTON NUCLEON-SCATTERING AND THE ANOMALOUS GLUON CONTRIBUTION

被引：8

作者：

GULLENSTERN, S ^{[1
]}

VELTRI, M ^{[1
]}

GORNICKI, P ^{[1
]}

MANKIEWICZ, L ^{[1
]}

SCHAFER, A ^{[1
]}

机构：

[1] MPI KERNPHYS,HEIDELBERG,GERMANY

来源：

PHYSICS LETTERS B | 1993年 / 312卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(93)90505-C

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss a new observable for semi-inclusive pion production in polarised lepton-nucleon collisions. This observable is sensitive to the polarised and unpolarised strange quark distribution and the anomalous gluon contribution, provided that their fragmentation functions into pions differ substantially from that of light quarks. From Monte Carlo data generated with our PEPSI code we conclude that HERMES might be able to decide whether the polarized strange quark and gluon distributions are large.

引用

页码：166 / 172

页数：7

共 18 条

[1] 1ST RESULTS FOR THE 2-SPIN PARAMETER ALL IN PI-0 PRODUCTION BY 200 GEV POLARIZED PROTONS AND ANTIPROTONS [J].

ADAMS, DL .

PHYSICS LETTERS B, 1991, 261 (1-2) :197-200

[2] MEASUREMENT OF THE SPIN-DEPENDENT STRUCTURE-FUNCTION G1(X) OF THE DEUTERON [J].

ADEVA, B ;

AHMAD, S ;

ARVIDSON, A ;

BADELEK, B ;

BALLINTIJN, MK ;

BARDIN, G ;

BAUM, G ;

BERGLUND, P ;

BETEV, L ;

BIRD, IG ;

BIRSA, R ;

BJORKHOLM, P ;

BONNER, BE ;

DEBOTTON, N ;

BOUTEMEUR, M ;

BRADAMANTE, F ;

BRESSAN, A ;

BRULL, A ;

BUCHANAN, J ;

BULTMANN, S ;

BURTIN, E ;

CAVATA, C ;

CHEN, JP ;

CLEMENT, J ;

CLOCCHIATTI, M ;

CORCORAN, MD ;

CRABB, D ;

CRANSHAW, J ;

CUHADAR, T ;

DALLATORRE, S ;

VANDANTZIG, R ;

DAY, D ;

DHAWAN, S ;

DULYA, C ;

DYRING, A ;

EICHBLATT, S ;

FAIVRE, JC ;

FASCHING, D ;

FEINSTEIN, F ;

FERNANDEZ, C ;

FROIS, B ;

GARABATOS, C ;

GARZON, JA ;

GATIGNON, L ;

GAUSSIRAN, T ;

GIORGI, M ;

VONGOELER, E ;

GOLOUTVIN, IA ;

GOMEZ, A ;

GRACIA, G .

PHYSICS LETTERS B, 1993, 302 (04) :533-539

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

ALTARELLI, G ;

ROSS, GG .

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

[4]

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

[5] A DETERMINATION OF THE FRAGMENTATION FUNCTIONS OF U-QUARKS INTO CHARGED PIONS [J].

AUBERT, JJ ;

BASSOMPIERRE, G ;

BECKS, KH ;

BENCHOUK, C ;

BEST, C ;

BOHM, E ;

DEBOUARD, X ;

BRASSE, FW ;

BROLL, C ;

BROWN, S ;

CARR, J ;

CLIFFT, R ;

COBB, JH ;

COIGNET, G ;

COMBLEY, F ;

COURT, GR ;

DAGOSTINI, G ;

DAU, WD ;

DAVIES, JK ;

DECLAIS, Y ;

DOSSELLI, U ;

DREES, J ;

EDWARDS, A ;

EDWARDS, M ;

FAVIER, J ;

FERRERO, MI ;

FLAUGER, W ;

FORSBACH, H ;

GABATHULER, E ;

GAMET, R ;

GAYLER, J ;

GERHARDT, V ;

GOSSLING, C ;

HAAS, J ;

HAMACHER, K ;

HAYMAN, P ;

HENCKES, M ;

KORBEL, V ;

KORZEN, B ;

LANDGRAF, U ;

LEENEN, M ;

MAIRE, M ;

MOHR, W ;

MONTGOMERY, HE ;

MOSER, K ;

MOUNT, RP ;

NAGY, E ;

NASSALSKI, J ;

NORTON, PR ;

MCNICHOLAS, J .

PHYSICS LETTERS B, 1985, 160 (06) :417-420

[6] THE ROLE OF THE AXIAL ANOMALY IN MEASURING SPIN-DEPENDENT PARTON DISTRIBUTIONS [J].

CARLITZ, RD ;

COLLINS, JC ;

MUELLER, AH .

PHYSICS LETTERS B, 1988, 214 (02) :229-236

[7]

COULTER K, 1990, HERMES DESYPRC901 PR

[8] PROTON SPIN WITHIN NONPERTURBATIVE QCD [J].

DOROKHOV, AE ;

KOCHELEV, NI ;

ZUBOV, YA .

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 1993, 8 (04) :603-651

[9]

DUREN M, 1992, PHYSICS HERA WORKSHO, V1, P427

[10] SUPERCOLLIDER PHYSICS [J].

EICHTEN, E ;

HINCHLIFFE, I ;

LANE, K ;

QUIGG, C .

REVIEWS OF MODERN PHYSICS, 1984, 56 (04) :579-707

← 1 2 →