MEASUREMENT OF THE TOTAL PHOTON PROTON CROSS-SECTION AND ITS DECOMPOSITION AT 200 GEV CENTER-OF-MASS ENERGY

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作者
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
BUNIATINA, A
BURKE, S
BURTON, MJ
BUSCHHORN, G
CAMPBELL, AJ
CARLI, T
CHARLES, F
CHARLET, M
机构
[1] RHEIN WESTFAL TH AACHEN,INST PHYS 1,W-5100 AACHEN,GERMANY
[2] RHEIN WESTFAL TH AACHEN,INST PHYS 3,W-5100 AACHEN,GERMANY
[3] HUMBOLDT UNIV BERLIN,INST PHYS,BERLIN,GERMANY
[4] UNIV BIRMINGHAM,SCH PHYS & SPACE RES,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND
[5] VUB,ULB,INTERUNIV INST HIGH ENERGIES,BRUSSELS,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,W-4600 DORTMUND,GERMANY
[11] CE SACLAY,DAPNIA,DSM,CEA,GIF SUR YVETTE,FRANCE
[12] UNIV GLASGOW,DEPT PHYS & ASTRON,GLASGOW,LANARK,SCOTLAND
[13] DESY,W-2000 HAMBURG,GERMANY
[14] UNIV HAMBURG,INST EXPTL PHYS 1,HAMBURG,GERMANY
[15] UNIV HEIDELBERG,INST PHYS,W-6900 HEIDELBERG,GERMANY
[16] UNIV HEIDELBERG,INST HOCHENERGIEPHYS,HEIDELBERG,GERMANY
[17] CHRISTIAN ALBRECHTS UNIV KIEL,INST REINE & ANGEW KERNPHYS,W-2300 KIEL,GERMANY
[18] SLOVAK ACAD SCI,INST EXPTL PHYS,KOSICE 04353,SLOVAKIA
[19] UNIV LANCASTER,SCH PHYS & CHEM,LANCASTER,ENGLAND
[20] UNIV LIVERPOOL,DEPT PHYS,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND
[21] UNIV LONDON QUEEN MARY & WESTFIELD COLL,LONDON E1 4NS,ENGLAND
[22] LUND UNIV,DEPT PHYS,LUND,SWEDEN
[23] UNIV MANCHESTER,DEPT PHYS,MANCHESTER M13 9PL,LANCS,ENGLAND
[24] UNIV AIX MARSEILLE 2,CPPM,CNRS,IN2P3,MARSEILLE,FRANCE
[25] INST THEORET & EXPTL PHYS,MOSCOW 117259,RUSSIA
[26] LEBEDEV PHYS INST,MOSCOW,RUSSIA
[27] MAX PLANCK INST PHYS & ASTROPHYS,MUNICH,GERMANY
[28] UNIV PARIS 11,LAL,CNRS,IN2P3,ORSAY,FRANCE
[29] LPNHE,ECOLE POLYTECH,CNRS,IN2P3,PALAISEAU,FRANCE
[30] UNIV PARIS 06,LPNHE,PARIS,FRANCE
[31] UNIV PARIS 07,CNRS,IN2P3,PARIS,FRANCE
[32] ACAD SCI CZECH REPUBL,INST PHYS,PRAGUE,CZECH REPUBLIC
[33] CHARLES UNIV,CTR NUCL,PRAGUE,CZECH REPUBLIC
[34] UNIV ROMA LA SAPIENZA,INFN ROMA,ROME,ITALY
[35] UNIV ROMA LA SAPIENZA,DIPARTIMENTO FIS,ROME,ITALY
[36] PAUL SCHERRER INST,VILLIGEN,SWITZERLAND
[37] BERG UNIV GESAMTHSCH WUPPERTAL,FACHBEREICH PHYS,W-5600 WUPPERTAL,GERMANY
[38] DESY,INST HOCHENERGIEPHYS,ZEUTHEN,GERMANY
[39] ETH ZURICH,INST TEILCHENPHYS,ZURICH,SWITZERLAND
[40] UNIV ZURICH,INST PHYS,ZURICH,SWITZERLAND
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O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We present a new measurement of the total photoproduction cross section performed with the H1 detector at HERA. For an average centre of mass energy of 200 GeV a value of sigma(tot)(gamma p) - 165 +/- 2 +/- 11 mu b has been obtained. A detailed analysis of the data in adequate kinematic regions enabled a decomposition of the total cross section in its elastic, single diffractive dissociation and remaining non-diffractive parts, based on safe assumptions on the double diffractive dissociation contribution.
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页码:27 / 38
页数:12
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