Measurement of the Q(2) evolution of the photon structure function F-2(gamma)

被引：54

作者：

Ackerstaff, K

Alexander, G

Allison, J

Altekamp, N

Anderson, KJ

Anderson, S

Arcelli, S

Asai, S

Axen, D

Azuelos, G

Ball, AH

Barberio, E

Barillari, T

Barlow, RJ

Bartoldus, R

Batley, JR

Baumann, S

Bechtluft, J

Beeston, C

Behnke, T

Bell, AN

Bell, KW

Bella, G

Bentvelsen, S

Bethke, S

Biebel, O

Biguzzi, A

Bird, SD

Blobel, V

Bloodworth, IJ

Bloomer, JE

Bobinski, M

Bock, P

Bonacorsi, D

Boutemeur, M

Bouwens, BT

Braibant, S

Brigliadori, L

Brown, RM

Burckhart, HJ

Burgard, C

Burgin, R

Capiluppi, P

Carnegie, RK

Carter, AA

Carter, JR

Chang, CY

Charlton, DG

Chrisman, D

Clarke, PEL

机构：

[1] UNIV BIRMINGHAM,SCH PHYS & SPACE RES,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND

[2] UNIV BOLOGNA,DIPARTIMENTO FIS,I-40126 BOLOGNA,ITALY

[3] IST NAZL FIS NUCL,I-40126 BOLOGNA,ITALY

[4] UNIV BONN,INST PHYS,D-53115 BONN,GERMANY

[5] UNIV CALIF RIVERSIDE,DEPT PHYS,RIVERSIDE,CA 92521

[6] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

[7] CARLETON UNIV,DEPT PHYS,OTTAWA CARLETON INST PHYS,OTTAWA,ON K1S 5B6,CANADA

[8] CARLETON UNIV,CTR RES PARTICLE PHYS,OTTAWA,ON K1S 5B6,CANADA

[9] UNIV CHICAGO,ENRICO FERMI INST,CHICAGO,IL 60637

[10] UNIV CHICAGO,DEPT PHYS,CHICAGO,IL 60637

[11] UNIV FREIBURG,FAK PHYS,D-79104 FREIBURG,GERMANY

[12] UNIV HEIDELBERG,INST PHYS,D-69120 HEIDELBERG,GERMANY

[13] INDIANA UNIV,DEPT PHYS,BLOOMINGTON,IN 47405

[14] UNIV LONDON QUEEN MARY & WESTFIELD COLL,LONDON E1 4NS,ENGLAND

[15] RHEIN WESTFAL TH AACHEN,INST PHYS 3,D-52056 AACHEN,GERMANY

[16] UNIV LONDON UNIV COLL,LONDON WC1E 6BT,ENGLAND

[17] UNIV MANCHESTER,SCHUSTER LAB,MANCHESTER M13 9PL,LANCS,ENGLAND

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

[19] UNIV MONTREAL,NUCL PHYS LAB,MONTREAL,PQ H3C 3J7,CANADA

[20] UNIV OREGON,DEPT PHYS,EUGENE,OR 97403

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

[22] TECHNION ISRAEL INST TECHNOL,DEPT PHYS,IL-32000 HAIFA,ISRAEL

[23] TEL AVIV UNIV,DEPT PHYS & ASTRON,IL-69978 TEL AVIV,ISRAEL

[24] UNIV TOKYO,INT CTR ELEMENTARY PARTICLE PHYS,TOKYO 113,JAPAN

[25] UNIV TOKYO,DEPT PHYS,TOKYO 113,JAPAN

[26] KOBE UNIV,KOBE,HYOGO 657,JAPAN

[27] BRUNEL UNIV,UXBRIDGE UB8 3PH,MIDDX,ENGLAND

[28] WEIZMANN INST SCI,PARTICLE PHYS DEPT,IL-76100 REHOVOT,ISRAEL

[29] UNIV HAMBURG,DESY,INST EXPT PHYS 2,D-22607 HAMBURG,GERMANY

[30] UNIV VICTORIA,DEPT PHYS,VICTORIA,BC V8W 3P6,CANADA

[31] UNIV BRITISH COLUMBIA,DEPT PHYS,VANCOUVER,BC V6T 1Z1,CANADA

[32] UNIV ALBERTA,DEPT PHYS,EDMONTON,AB T6G 2J1,CANADA

[33] DUKE UNIV,DEPT PHYS,DURHAM,NC 27708

[34] RES INST PARTICLE & NUCL PHYS,H-1525 BUDAPEST,HUNGARY

[35] INST NUCL RES,H-4001 DEBRECEN,HUNGARY

[36] UNIV MUNICH,SEKT PHYS,D-85748 GARCHING,GERMANY

来源：

PHYSICS LETTERS B | 1997年 / 411卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(97)01023-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

New measurements are presented of the photon structure function F-2(gamma)(x,Q(2)) at four values of Q(2) between 9 and 59 GeV2 based on data collected with the OPAL detector at centre-of-mass energies of 161-172 GeV, with a total integrated luminosity of 18.1 pb(-1). The evolution of F-2(gamma) with Q(2) in bins of x is determined in the Q(2) range from 1.86 to 135 GeV2 using data taken at centre-of-mass energies of 91 GeV and 161-172 GeV. F-2(gamma) is observed to increase with Q(2) with a slope of alpha(-1)dF(2)(gamma)/dlnQ(2) = 0.10(-0.03)(+0.05) measured in the range 0.1 < x < 0.6. (C) 1997 Elsevier Science B.V.

引用

页码：387 / 401

页数：15

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