Scale influence on the energy dependence of photon-proton cross sections

被引：4

作者：

Aid, S ^{[14
]}

Anderson, M

Andreev, V

Andrieu, B

Babaev, A

Bahr, J

Ban, J

Ban, Y

Baranov, P

Barrelet, E

Barschke, R

Bartel, W

Barth, M

Bassler, U

Beck, HP

Beck, M

Behrend, HJ

Belousov, A

Berger, C

Bernardi, G

BertrandCoremans, G

Besancon, M

Beyer, R

Biddulph, P

Bispham, P

Bizot, JC

Blobel, V

Borras, K

Boudry, V

Braemer, A

Braunschweig, W

Brisson, V

Bruckner, W

Bruel, P

Bruncko, D

Brune, C

Buchholz, R

Bungener, L

Burger, J

Busser, FW

Buniatian, A

Burke, S

Burton, MJ

Calvet, D

Campbell, AJ

Carli, T

Charlet, M

Clarke, D

Clegg, AB

Clerbaux, B

机构：

[1] RHEIN WESTFAL TH AACHEN,INST PHYS 1,D-5100 AACHEN,GERMANY

[2] RHEIN WESTFAL TH AACHEN,INST PHYS 3,D-5100 AACHEN,GERMANY

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

[4] FREE UNIV BRUSSELS,INTERUNIV INST HIGH ENERGIES,BRUSSELS,BELGIUM

[5] UNIV INSTELLING ANTWERP,B-2610 WILRIJK,BELGIUM

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

[7] INST PHYS NUCL,KRAKOW,POLAND

[8] UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616

[9] UNIV CALIF DAVIS,IIRPA,DAVIS,CA 95616

[10] UNIV DORTMUND,INST PHYS,D-4600 DORTMUND,GERMANY

[11] CEA,CE SACLAY,DSM,DAPNIA,GIF SUR YVETTE,FRANCE

[12] UNIV GLASGOW,DEPT PHYS & ASTRON,GLASGOW,LANARK,SCOTLAND

[13] DESY,D-2000 HAMBURG,GERMANY

[14] UNIV HAMBURG,INST EXPT PHYS 1,D-2000 HAMBURG,GERMANY

[15] MAX PLANCK INST KERNPHYS,D-69117 HEIDELBERG,GERMANY

[16] UNIV HEIDELBERG,INST PHYS,D-6900 HEIDELBERG,GERMANY

[17] UNIV HEIDELBERG,INST HOCHENERGIEPHYS,D-6900 HEIDELBERG,GERMANY

[18] CHRISTIAN ALBRECHTS UNIV KIEL,INST REINE & ANGEW KERNPHYS,D-2300 KIEL,GERMANY

[19] SLOVAK ACAD SCI,INST EXPT PHYS,KOSICE 04353,SLOVAKIA

[20] UNIV LANCASTER,SCH PHYS & CHEM,LANCASTER,ENGLAND

[21] UNIV LIVERPOOL,DEPT PHYS,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND

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

[23] LUND UNIV,DEPT PHYS,LUND,SWEDEN

[24] UNIV MANCHESTER,DEPT PHYS,MANCHESTER M13 9PL,LANCS,ENGLAND

[25] UNIV AIX MARSEILLE 2,CPPM,IN2P3,CNRS,F-13284 MARSEILLE 07,FRANCE

[26] INST THEORET & EXPT PHYS,MOSCOW 117259,RUSSIA

[27] PN LEBEDEV PHYS INST,MOSCOW 117924,RUSSIA

[28] MAX PLANCK INST PHYS & ASTROPHYS,D-80805 MUNICH,GERMANY

[29] UNIV PARIS 11,LAL,IN2P3 CNRS,ORSAY,FRANCE

[30] ECOLE POLYTECH,LPHNE,IN2P3 CNRS,PALAISEAU,FRANCE

[31] UNIV PARIS 06,LPNHE,IN2P3 CNRS,PARIS,FRANCE

[32] UNIV PARIS 07,LPNHE,IN2P3 CNRS,PARIS,FRANCE

[33] ACAD SCI CZECH REPUBL,INST PHYS,PRAGUE,CZECH REPUBLIC

[34] CHARLES UNIV,NUCL CTR,PRAGUE,CZECH REPUBLIC

[35] INFN ROMA 1,ROME,ITALY

[36] UNIV ROMA 3,DIPARTIMENTO FIS,ROME,ITALY

[37] PAUL SCHERRER INST,VILLIGEN,SWITZERLAND

[38] BERG UNIV GESAMTHSCH WUPPERTAL,FACHBEREICH PHYS,WUPPERTAL,GERMANY

[39] DESY,INST HOCHENERGIEPHYS,ZEUTHEN,GERMANY

[40] ETH ZURICH,INST TEILCHENPHYS,ZURICH,SWITZERLAND

[41] UNIV ZURICH,INST PHYS,ZURICH,SWITZERLAND

[42] HUMBOLDT UNIV BERLIN,INST PHYS,BERLIN,GERMANY

[43] BERG UNIV GESAMTHSCH WUPPERTAL,RECHENZENTRUM,WUPPERTAL,GERMANY

[44] UNIV ARIZONA,DEPT PHYS,TUCSON,AZ 85721

来源：

PHYSICS LETTERS B | 1997年 / 392卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(96)01594-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The scale dependence of the evolution of photoproduction cross sections with the photon-proton centre of mass energy W is studied using low Q(2) < 0.01 GeV2 e(+)p interactions collected by the Ill experiment at HERA. The value of the largest transverse momentum of a charged particle in the photon fragmentation region is used to define the hard scale. The slope of the W dependence of the cross section is observed to increase steeply with increasing transverse momentum. The result is compared to measurements of the Q(2) evolution of the W dependence of the virtual photon-proton cross section. Interpretations in terms of QCD and in terms of Regge phenomenology are discussed.

引用

页码：234 / 242

页数：9

共 35 条

[1] MEASUREMENT OF THE PROTON STRUCTURE-FUNCTION F2(CHI,Q2) IN THE LOW-CHI REGION AT HERA [J].

ABT, I ;

AHMED, T ;

ANDREEV, V ;

ANDRIEU, B ;

APPUHN, RD ;

ARPAGAUS, M ;

BABAEV, A ;

BARWOLFF, H ;

BAN, J ;

BARANOV, P ;

BARRELET, E ;

BARTEL, W ;

BASSLER, U ;

BECK, HP ;

BEHREND, HJ ;

BELOUSOV, A ;

BERGER, C ;

BERGSTEIN, H ;

BERNARDI, G ;

BERNET, R ;

BERTRANDCOREMANS, G ;

BESANCON, M ;

BIDDULPH, P ;

BINDER, E ;

BISCHOFF, A ;

BIZOT, JC ;

BLOBEL, V ;

BORRAS, K ;

BOSETTI, PC ;

BOUDRY, V ;

BOURDARIOS, C ;

BRASSE, F ;

BRAUN, U ;

BRAUNSCHWEIG, W ;

BRISSON, V ;

BRUNCKO, D ;

BUNGENER, L ;

BURGER, J ;

BUSSER, FW ;

BUNIATIAN, A ;

BURKE, S ;

BUSCHHORN, G ;

CAMPBELL, AJ ;

CARLI, T ;

CHARLES, F ;

CLARKE, D ;

CLEGG, AB ;

COLOMBO, M ;

COUGHLAN, JA ;

COURAU, A .

NUCLEAR PHYSICS B, 1993, 407 (03) :515-535

[2]

ABT I, 1995, IN PRESS NUCL INSTR

[3] A MEASUREMENT OF THE PROTON STRUCTURE-FUNCTION F-2(X,Q(2)) [J].

AHMED, T ;

AID, S ;

AKHUNDOVA, A ;

ANDREEV, V ;

ANDRIEU, B ;

APPUHN, RD ;

ARPAGAUS, M ;

BABAEV, A ;

BAEHR, J ;

BAN, J ;

BARANOV, P ;

BARRELET, E ;

BARTEL, W ;

BARTH, M ;

BASSLER, U ;

BECK, HP ;

BEHREND, HJ ;

BELOUSOV, A ;

BERGER, C ;

BERGSTEIN, H ;

BERNARDI, G ;

BERNET, R ;

BERTRANDCOREMANS, G ;

BESANCON, M ;

BEYER, R ;

BIDDULPH, P ;

BIZOT, JC ;

BLOBEL, V ;

BORRAS, K ;

BOTTERWECK, F ;

BOUDRY, V ;

BRAEMER, A ;

BRASSE, F ;

BRAUNSCHWEIG, W ;

BRISSON, V ;

BRUNCKO, D ;

BRUNE, C ;

BUCHHOLZ, R ;

BUNGENER, L ;

BURGER, J ;

BUSSER, FW ;

BUNIATIAN, A ;

BURKE, S ;

BUSCHHORN, G ;

CAMPBELL, AJ ;

CARLI, T ;

CHARLES, F ;

CLARKE, D ;

CLEGG, AB ;

CLERBAUX, B .

NUCLEAR PHYSICS B, 1995, 439 (03) :471-502

[4]

AHMED T, 1995, Z PHYS C PART FIELDS, V66, P529, DOI 10.1007/BF01579628

[5]

AID S, 1995, Z PHYS C PART FIELDS, V69, P27

[6] A measurement and QCD analysis of the proton structure function F-2(x,Q(2)) at HERA [J].

Aid, S ;

Andreev, V ;

Andrieu, B ;

Appuhn, RD ;

Arpagaus, M ;

Babaev, A ;

Bahr, J ;

Ban, J ;

Ban, Y ;

Baranov, P ;

Barrelet, E ;

Barschke, R ;

Bartel, W ;

Barth, M ;

Bassler, U ;

Beck, HP ;

Behrend, HJ ;

Belousov, A ;

Berger, C ;

Bernardi, G ;

Bernet, R ;

BertrandCoremans, G ;

Besancon, M ;

Beyer, R ;

Biddulph, P ;

Bispham, P ;

Bizot, JC ;

Blobel, V ;

Borras, K ;

Botterweck, F ;

Boudry, V ;

Braemer, A ;

Braunschweig, W ;

Brisson, V ;

Bruncko, D ;

Brune, C ;

Buchholz, R ;

Bungener, L ;

Burger, J ;

Busser, FW ;

Buniatian, A ;

Burke, S ;

Burton, MJ ;

Buschhorn, G ;

Campbell, AJ ;

Carli, T ;

Charles, F ;

Charlet, M ;

Clarke, D ;

Clegg, AB .

NUCLEAR PHYSICS B, 1996, 470 (1-2) :3-38

[7] COMPARISON OF DEEP-INELASTIC SCATTERING WITH PHOTOPRODUCTION INTERACTIONS AT HERA [J].

AID, S ;

ANDREEV, V ;

ANDRIEU, B ;

APPUHN, RD ;

ARPAGAUS, M ;

BABAEV, A ;

BAHR, J ;

BAN, J ;

BAN, Y ;

BARANOV, P ;

BARRELET, E ;

BARSCHKE, R ;

BARTEL, W ;

BARTH, M ;

BASSLER, U ;

BECK, HP ;

BEHREND, HJ ;

BELOUSOV, A ;

BERGER, C ;

BERNARDI, G ;

BERNET, R ;

BERTRANDCOREMANS, G ;

BESANCON, M ;

BEYER, R ;

BIDDULPH, P ;

BISPHAM, P ;

BIZOT, JC ;

BLOBEL, V ;

BORRAS, K ;

BOTTERWECK, F ;

BOUDRY, V ;

BOUROV, S ;

BRAEMER, A ;

BRASSE, F ;

BRAUNSCHWEIG, W ;

BRISSON, V ;

BRUNCKO, D ;

BRUNE, C ;

BUCHHOLZ, R ;

BUNGENER, L ;

BURGER, J ;

BUSSER, FW ;

BUNIATIAN, A ;

BURKE, S ;

BURTON, MJ ;

BUSCHHORN, G ;

CAMPBELL, AJ ;

CARLI, T ;

CHARLES, F ;

CHARLET, M .

PHYSICS LETTERS B, 1995, 358 (3-4) :412-422

[8]

AID S, 096122 DESY

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

ALTARELLI, G ;

PARISI, G .

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

[10]

AYALA AL, 1996, ANLHEPPR9652

← 1 2 3 4 →