MEASUREMENTS OF THE NUCLEON STRUCTURE-FUNCTION IN THE RANGE 0.002-LESS-THAN-X0.17 AND 0.2-LESS-THAN-Q2-LESS-THAN-8 GEV2 IN DEUTERIUM, CARBON AND CALCIUM

被引：153

作者：

ARNEODO, M

ARVIDSON, A

AUBERT, JJ

BADELEK, B

BEAUFAYS, J

BEE, CP

BENCHOUK, C

BERGHOFF, G

BIRD, IG

BLUM, D

BOHM, E

DEBOUARD, X

BRASSE, FW

BRAUN, H

BROLL, C

BROWN, SC

BRUCK, H

CALEN, H

CHIMA, JS

CIBOROWSKI, J

CLIFFT, R

COIGNET, G

COMBLEY, F

COUGHLAN, J

DAGOSTINI, G

DAHLGREN, S

DERADO, I

DREYER, T

DREES, J

DUREN, M

ECKARDT, V

EDWARDS, A

EDWARDS, M

ERNST, T

ESZES, G

FAVIER, J

FERRERO, MI

FIGIEL, J

FLAUGER, W

FOSTER, J

GABATHULER, E

GAJEWSKI, J

GAMET, R

GEDDES, N

GRAFSTROM, P

GUSTAFSSON, L

HAAS, J

HAGBERG, E

HASERT, FJ

HAYMAN, P

机构：

[1] RHEIN WESTFAL TH AACHEN,ZENTRUM PHYS,INST PHYS 3,W-5100 AACHEN,GERMANY

[2] CERN,CH-1211 GENEVA 23,SWITZERLAND

[3] DESY,W-2000 HAMBURG,GERMANY

[4] UNIV FREIBURG,FAK PHYS,W-7800 FREIBURG,GERMANY

[5] UNIV HAMBURG,INST EXPTL PHYS 2,W-2000 HAMBURG 13,GERMANY

[6] UNIV KIEL,INST KERNPHYS,W-2300 KIEL 1,GERMANY

[7] UNIV PARIS 11,ACCELERATEUR LINEAIRE LAB,F-91405 ORSAY,FRANCE

[8] UNIV LANCASTER,DEPT PHYS,LANCASTER LA1 4YB,ENGLAND

[9] LAB ANNECY LE VIEUX PHYS PARTICULES,F-74941 ANNECY LE VIEUX,FRANCE

[10] UNIV LIVERPOOL,DEPT PHYS,LIVERPOOL L69 3BX,ENGLAND

[11] FAC SCI LUMINY,CTR PHYS PARTICULES,F-13288 MARSEILLE,FRANCE

[12] UNIV MONS,FAC SCI,B-7000 MONS,BELGIUM

[13] MAX PLANCK INST PHYS & ASTROPHYS,W-8000 MUNICH 40,GERMANY

[14] UNIV OXFORD,NUCL PHYS LAB,OXFORD OX1 3RH,ENGLAND

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

[16] UNIV SHEFFIELD,DEPT PHYS,SHEFFIELD S3 7RH,S YORKSHIRE,ENGLAND

[17] UNIV UPPSALA,DEPT RADIAT SCI,S-75121 UPPSALA,SWEDEN

[18] UNIV WARSAW,INST PHYS,PL-00681 WARSAW,POLAND

[19] INST NUCL STUDIES,PL-00681 WARSAW,POLAND

[20] UNIV WUPPERTAL,FACHBEREICH PHYS,W-5600 WUPPERTAL,GERMANY

来源：

NUCLEAR PHYSICS B | 1990年 / 333卷 / 01期

关键词：

D O I：

10.1016/0550-3213(90)90221-X

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：

Small angle scattering of 280 GeV positive muons by deuterium, carbon and calcium has been measured at scattering angles down to 2 mrad. The nucleon structure function F2 extracted from deuterium does not show a significant x dependence in the measured range of Q2 and its Q2 dependence is linear in logQ2. For calcium, a depletion of F2 is observed at low x by 30% as compared with the values at x = 0.1 where F2(Ca) and F2 (D) are not significantly different. This depletion is attributed to shadowing. The carbon structure function exhibits a similar, but less pronounced, x dependence. Such behaviour is observed to be independent of Q2. The data are consistent with those obtained from other charged lepton experiments both at similar and higher values of x and Q2 and considerably extend the range of the measurements down to the low values of x to be measured in forthcoming experiments at HERA. © 1990.

引用

页码：1 / 47

页数：47

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