Inclusive jet production with virtual photons in next-to-leading order QCD

被引：94

作者：

Klasen, M

Kramer, G

Potter, B

机构：

[1] DESY, D-22607 Hamburg, Germany

[2] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 1998年 / 1卷 / 1-2期

关键词：

D O I：

10.1007/BF01245816

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：

We present a next-to-leading order calculation for the virtual photoproduction of one and two jets in ep collisions. Soft and collinear singularities are extracted using the phase space slicing method. The collinear photon initial state singularity depends logarithmically on the mass of the virtual photon and is absorbed into the virtual photon structure function. An MS factorization scheme is defined similarly to the real photon case. Numerical results are presented for HERA conditions using the Snowmass jet definition for inclusive single jet and dijet cross sections. We study the dependence of these cross sections on the transverse energies and rapidities of the jets. Finally we compare the ratio of the experimentally defined resolved and direct cross sections with recent ZEUS data as a function of the photon virtuality P-2.

引用

页码：261 / 270

页数：10

共 32 条

[1] PARTON DISTRIBUTIONS IN THE PHOTON [J].

AURENCHE, P ;

GUILLET, JP ;

FONTANNAZ, M .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1994, 64 (04) :621-630

[2]

AURENCHE P, IN PRESS P 1995 LEP2

[3] MEASUREMENT OF DEEP INELASTIC ELECTRON-SCATTERING OFF VIRTUAL PHOTONS [J].

BERGER, C ;

DEUTER, A ;

GENZEL, H ;

LACKAS, W ;

PIELORZ, J ;

RAUPACH, F ;

WAGNER, W ;

KLOVNING, A ;

LILLESTOL, E ;

BURGER, J ;

CRIEGEE, L ;

FERRAROTTO, F ;

FRANKE, G ;

GASPERO, M ;

GERKE, C ;

KNIES, G ;

LEWENDEL, B ;

MEYER, J ;

MICHELSEN, U ;

PAPE, KH ;

STELLA, B ;

TIMM, U ;

WINTER, GG ;

ZACHARA, M ;

ZIMMERMANN, W ;

BUSSEY, PJ ;

CARTWRIGHT, SL ;

DAINTON, JB ;

KING, BT ;

RAINE, C ;

SCARR, JM ;

SKILLICORN, IO ;

SMITH, KM ;

THOMSON, JC ;

ACHTERBERG, O ;

BLOBEL, V ;

BURKART, D ;

DIEHLMANN, K ;

FEINDT, M ;

KAPITZA, H ;

KOPPITZ, B ;

KRUGER, M ;

POPPE, M ;

SPITZER, H ;

VANSTAA, R ;

CHANG, CY ;

GLASSER, RG ;

KELLOGG, RG ;

MAXFIELD, SJ ;

POLVADO, RO .

PHYSICS LETTERS B, 1984, 142 (1-2) :119-124

[4] QCD CORRECTIONS TO INCLUSIVE JET PHOTOPRODUCTION VIA DIRECT PHOTONS [J].

BODEKER, D .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1993, 59 (03) :501-510

[5] INCLUSIVE JET PRODUCTION AT HERA - NEXT-TO-LEADING ORDER QCD CORRECTIONS TO THE RESOLVED AND DIRECT PHOTON CONTRIBUTION [J].

BODEKER, D ;

KRAMER, G ;

SALESCH, SG .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1994, 63 (03) :471-476

[6] JET PHOTOPRODUCTION AT HERA IN NEXT-TO-LEADING-ORDER QCD [J].

BODEKER, D .

PHYSICS LETTERS B, 1992, 292 (1-2) :164-168

[7] COMPLETE O(ALPHA(S)2 CORRECTIONS TO (2+1) JET CROSS-SECTIONS IN DEEP-INELASTIC SCATTERING [J].

BRODKORB, T ;

MIRKES, E .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 66 (1-2) :141-149

[8]

CHYLA J, 1996, P WORKSH 1995 96 FUT, V1, P545

[9]

DEFLORIAN D, 1996, IN PRESS Z PHYS C

[10] OBSERVATION OF DIRECT PROCESSES IN PHOTOPRODUCTION AT HERA [J].

DERRICK, M ;

KRAKAUER, D ;

MAGILL, S ;

MUSGRAVE, B ;

REPOND, J ;

REPOND, S ;

STANEK, R ;

TALAGA, RL ;

THRON, J ;

ARZARELLO, F ;

AYAD, R ;

BARI, G ;

BASILE, M ;

BELLAGAMBA, L ;

BOSCHERINI, D ;

BRUNI, A ;

BRUNI, G ;

BRUNI, P ;

ROMEO, GC ;

CASTELLINI, G ;

CHIARINI, M ;

CIFARELLI, L ;

CINDOLO, F ;

CIRALLI, F ;

CONTIN, A ;

DELPAPA, C ;

DAURIA, S ;

FRASCONI, F ;

GIUSTI, P ;

IACOBUCCI, G ;

LAURENTI, G ;

LEVI, G ;

LIN, Q ;

MACCARRONE, G ;

MARGOTTI, A ;

MASSAM, T ;

NANIA, R ;

NEMOZ, C ;

PALMONARI, F ;

SARTORELLI, G ;

TIMELLINI, R ;

GARCIA, YZ ;

ZICHICHI, A ;

BARGENDE, A ;

CRITTENDEN, J ;

DESCH, K ;

DIEKMANN, B ;

DOEKER, T ;

FELD, L ;

FREY, A .

PHYSICS LETTERS B, 1994, 322 (03) :287-300

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