Measurement of dijet production at low Q2 at HERA

被引：21

作者：

Aktas, A

Andreev, V

Anthonis, T

Asmone, A

Babaev, A

Backovic, S

Bähr, J

Baranov, P

Barrelet, E

Bartel, W

Baumgartner, S

Becker, J

Beckingham, M

Behnke, O

Behrendt, O

Belousov, A

Berger, C

Berger, N

Berndt, T

Bizot, JC

Böhme, J

Boenig, MO

Boudry, V

Bracinik, J

Braunschweig, W

Brisson, V

Bröker, HB

Brown, DP

Bruncko, D

Büsser, FW

Bunyatyan, A

Buschhorn, G

Bystritskaya, L

Campbell, AJ

Caron, S

Cassol-Brunner, F

Cerny, K

Chekelian, V

Chyla, J

Collard, C

Contreras, JG

Coppens, YR

Coughlan, JA

Cousinou, MC

Cox, BE

Cozzika, G

Cvach, J

Dainton, JB

Dau, WD

Daum, K

机构：

[1] DESY, D-2000 Hamburg, Germany

[2] Rhein Westfal TH Aachen, Inst Phys 1, D-5100 Aachen, Germany

[3] Rhein Westfal TH Aachen, Inst Phys 3, D-5100 Aachen, Germany

[4] Univ Birmingham, Sch Phys & Space Res, Birmingham B15 2TT, W Midlands, England

[5] ULB VUB, Interuniv Inst High Energies, Brussels, Belgium

[6] Univ Antwerp, B-2020 Antwerp, Belgium

[7] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[8] Inst Nucl Phys, Krakow, Poland

[9] Univ Dortmund, Inst Phys, D-4600 Dortmund, Germany

[10] Joint Inst Nucl Res, Dubna, Russia

[11] CE Saclay, DAPNIA, DSM, CEA, Gif Sur Yvette, France

[12] Univ Hamburg, Inst Expt Phys, Hamburg, Germany

[13] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[14] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany

[15] Heidelberg Univ, Kirchhoff Inst Phys, D-6900 Heidelberg, Germany

[16] Univ Kiel, Inst Expt & Angew Phys, Kiel, Germany

[17] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia

[18] Univ Lancaster, Sch Phys & Chem, Lancaster, England

[19] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England

[20] Queen Mary Univ London, London E1 4NS, England

[21] Lund Univ, Dept Phys, Lund, Sweden

[22] Univ Manchester, Dept Phys, Manchester M13 9PL, Lancs, England

[23] Univ Mediterranee, CPPM, CNRS, IN2P3, Marseille, France

[24] Inst Theoret & Expt Phys, Moscow 117259, Russia

[25] PN Lebedev Phys Inst, Moscow 117924, Russia

[26] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[27] Univ Paris 11, LAL, CNRS, IN2P3, Orsay, France

[28] Ecole Polytech, LLR, CNRS, IN2P3, Palaiseau, France

[29] Univ Paris 06, LPNHE, CNRS, IN2P3, Paris, France

[30] Univ Paris 07, LPNHE, CNRS, IN2P3, Paris, France

[31] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic

[32] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[33] Univ Roma Tre, Dipartimento Fis, Rome, Italy

[34] INFN Roma 3, Rome, Italy

[35] Paul Scherrer Inst, Villigen, Switzerland

[36] Berg Univ Wuppertal, Fachbereich Phys, D-42097 Wuppertal, Germany

[37] Yerevan Phys Inst, Yerevan 375036, Armenia

[38] DESY, Zeuthen, Germany

[39] ETH, Inst Teilchenphys, Zurich, Switzerland

[40] Univ Zurich, Inst Phys, Zurich, Switzerland

[41] Natl Tech Univ Athens, Dept Phys, GR-15773 Athens, Greece

[42] Berg Univ Wuppertal, Rechenzentrum, D-42097 Wuppertal, Germany

[43] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany

[44] CINVESTAV, Dept Fis Aplicada, Merida, Yucatan, Mexico

[45] Safarik Univ, Kosice, Slovakia

[46] CERN, Geneva, Switzerland

[47] CINVESTAV, Dept Fis, Mexico City 14000, DF, Mexico

来源：

EUROPEAN PHYSICAL JOURNAL C | 2004年 / 37卷 / 02期

关键词：

D O I：

10.1140/epjc/s2004-01989-7

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：

Triple differential dijet cross sections in e(+/-)p interactions are presented in the region of photon virtualities 2 < Q(2) < 80 GeV2, inelasticities 0.1 < y < 0.85, jet transverse energies E*(T1) > 7GeV, E*(T2) > 5 GeV, and pseudorapidities - 2.5 < eta(1)*, eta(2)* < 0. The measurements are made in the gamma*p centre-of-mass frame, using an integrated luminosity of 57 pb(-1). The data are compared with NLO QCD calculations and LO Monte Carlo programs with and without a resolved virtual photon contribution. NLO QCD calculations fail to describe the region of low Q(2) and low jet transverse energies, in contrast to a LO Monte Carlo generator which includes direct and resolved photon interactions with both transversely and longitudinally polarised photons. Initial and final state parton showers are tested as a mechanism for including higher order QCD effects in low E-T jet production.

引用

页码：141 / 159

页数：19

共 73 条

[1] The H1 detector at HERA [J].

Abt, I ;

Ahmed, T ;

Aid, S ;

Andreev, V ;

Andrieu, B ;

Appuhn, RD ;

Arnault, C ;

Arpagaus, M ;

Babaev, A ;

Barwolff, H ;

Ban, J ;

Banas, E ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Barth, M ;

Bassler, U ;

Basti, F ;

Baynham, DE ;

Baze, JM ;

Beck, GA ;

Beck, HP ;

Bederede, D ;

Behrend, HJ ;

Beigbeder, C ;

Belousov, A ;

Berger, C ;

Bergstein, H ;

Bernard, R ;

Bernardi, G ;

Bernet, R ;

Bernier, R ;

Berthon, U ;

BertrandCoremans, G ;

Besanson, M ;

Beyer, R ;

Biasci, JC ;

Biddulph, P ;

Bidoli, V ;

Binder, E ;

Binko, P ;

Bizot, JC ;

Blobel, V ;

Blouzon, F ;

Blume, H ;

Borras, K ;

Boudry, V ;

Bourdarios, C ;

Brasse, F ;

Braunschweig, W .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1997, 386 (2-3) :310-347

[2] The tracking, calorimeter and muon detectors of the H1 experiment at HERA [J].

Abt, I ;

Ahmed, T ;

Aid, S ;

Andreev, V ;

Andrieu, B ;

Appuhn, RD ;

Arnault, C ;

Arpagaus, M ;

Babaev, A ;

Barwolff, H ;

Ban, J ;

Banas, E ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Barth, M ;

Bassler, U ;

Basti, F ;

Baynham, DE ;

Baze, JM ;

Beck, GA ;

Beck, HP ;

Bederede, D ;

Behrend, HJ ;

Beigbeder, C ;

Belousov, A ;

Berger, C ;

Bergstein, H ;

Bernard, R ;

Bernardi, G ;

Bernet, R ;

Bernier, R ;

Berthon, U ;

BertrandCoremans, G ;

Besancon, M ;

Beyer, R ;

Biasci, JC ;

Biddulph, P ;

Bidoli, V ;

Binder, E ;

Binko, P ;

Bizot, JC ;

Blobel, V ;

Blouzon, F ;

Blume, H ;

Borras, K ;

Boudry, V ;

Bourdarios, C ;

Brasse, F ;

Braunschweig, W .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1997, 386 (2-3) :348-396

[3] Intermittency regions at high energies [J].

Golyak, I ;

Andre, T .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1997, 74 (02) :275-278

[4] Low Q2 jet production at HERA and virtual photon structure [J].

Adloff, C ;

Aid, S ;

Anderson, M ;

Andreev, V ;

Andrieu, B ;

Arkadov, V ;

Arndt, C ;

Ayyaz, I ;

Babaev, A ;

Bahr, J ;

Ban, J ;

Baranov, P ;

Barrelet, E ;

Barschke, R ;

Bartel, W ;

Bassler, U ;

Beier, C ;

Belousov, A ;

Berger, C ;

Bernardi, G ;

Beyer, R ;

Biddulph, P ;

Bizot, JC ;

Borras, K ;

Botterweck, F ;

Boudry, V ;

Bourov, S ;

Braemer, A ;

Braunschweig, W ;

Brisson, V ;

Brown, DP ;

Bruckner, W ;

Bruel, P ;

Bruncko, D ;

Brune, C ;

Burger, J ;

Busser, FW ;

Buniatian, A ;

Burke, S ;

Buschhorn, G ;

Calvet, D ;

Campbell, AJ ;

Carli, T ;

Charlet, M ;

Clarke, D ;

Clerbaux, B ;

Cocks, S ;

Contreras, JG ;

Cormack, C ;

Coughlan, JA .

PHYSICS LETTERS B, 1997, 415 (04) :418-434

[5] Measurement of inclusive jet cross sections in photoproduction at HERA [J].

Adloff, C ;

Andreev, V ;

Andrieu, B ;

Anthonis, T ;

Astvatsatourov, A ;

Babaev, A ;

Bähr, J ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Baumgartner, S ;

Becker, J ;

Beckingham, M ;

Beglarian, A ;

Behnke, O ;

Belousov, A ;

Berger, C ;

Berndt, T ;

Bizot, JC ;

Böhme, J ;

Boudry, V ;

Braunschweig, W ;

Brisson, V ;

Bröker, HB ;

Brown, DP ;

Bruncko, D ;

Büsser, FW ;

Bunyatyan, A ;

Burrage, A ;

Buschhorn, G ;

Bystritskaya, L ;

Campbell, AJ ;

Caron, S ;

Cassol-Brunner, F ;

Chekelian, V ;

Clarke, D ;

Collard, C ;

Contreras, JG ;

Coppens, YR ;

Coughlan, JA ;

Cousinou, MC ;

Cox, BE ;

Cozzika, G ;

Cvach, J ;

Dainton, JB ;

Dau, WD ;

Daum, K ;

Davidsson, M ;

Delcourt, B ;

Delerue, N .

EUROPEAN PHYSICAL JOURNAL C, 2003, 29 (04) :497-513

[6] Measurement of dijet cross sections in photoproduction at HERA [J].

Adloff, C ;

Andreev, V ;

Andrieu, B ;

Anthonis, T ;

Arkadov, V ;

Astvatsatourov, A ;

Babaev, A ;

Bähr, J ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Becker, J ;

Beglarian, A ;

Behnke, O ;

Beier, C ;

Belousov, A ;

Berger, C ;

Berndt, T ;

Bizot, JC ;

Bhöme, J ;

Boudry, V ;

Braunschweig, W ;

Brisson, V ;

Bröker, HB ;

Brown, DP ;

Brückner, W ;

Bruncko, D ;

Bürger, J ;

Büsser, FW ;

Bunyatyan, A ;

Burrage, A ;

Buschhorn, G ;

Bystritskaya, L ;

Campbell, AJ ;

Caron, S ;

Cassol-Brunner, F ;

Clarke, D ;

Collard, C ;

Contreras, JG ;

Coppens, YR ;

Coughlan, JA ;

Cousinou, MC ;

Cox, BE ;

Cozzika, G ;

Cvach, J ;

Dainton, JB ;

Dau, WD ;

Daum, K ;

Davidsson, M ;

Delcourt, B .

EUROPEAN PHYSICAL JOURNAL C, 2002, 25 (01) :13-23

[7] Measurement of inclusive jet cross-sections in deep-inelastic ep scattering at HERA [J].

Adloff, C ;

Andreev, V ;

Andrieu, B ;

Anthonis, T ;

Astvatsatourov, A ;

Babaev, A ;

Bähr, J ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Baumgartner, S ;

Becker, J ;

Beckingham, M ;

Beglarian, A ;

Behnke, O ;

Beier, C ;

Belousov, A ;

Berger, C ;

Berndt, T ;

Bizot, JC ;

Böhme, J ;

Boudry, V ;

Braunschweig, W ;

Brisson, V ;

Bröker, HB ;

Brown, DP ;

Brückner, W ;

Bruncko, D ;

Büsser, FW ;

Bunyatyan, A ;

Burrage, A ;

Buschhorn, G ;

Bystritskaya, L ;

Campbell, AJ ;

Carli, T ;

Caron, S ;

Cassol-Brunner, F ;

Clarke, D ;

Collard, C ;

Contreras, JG ;

Coppens, YR ;

Coughlan, JA ;

Cousinou, MC ;

Cox, BE ;

Cozzika, G ;

Cvach, J ;

Dainton, JB ;

Dau, WD ;

Daum, K ;

Davidsson, M .

PHYSICS LETTERS B, 2002, 542 (3-4) :193-206

[8]

Adloff C, 2001, EUR PHYS J C, V19, P289, DOI 10.1007/s100520100621

[9] Three-jet production in deep-inelastic scattering at HERA [J].

Adloff, C ;

Andreev, V ;

Andrieu, B ;

Anthonis, T ;

Arkadov, V ;

Astvatsatourov, A ;

Ayyaz, I ;

Babaev, A ;

Bähr, J ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Bate, P ;

Beglarian, A ;

Behnke, O ;

Beier, C ;

Belousov, A ;

Benisch, T ;

Berger, C ;

Berndt, T ;

Bizot, JC ;

Boudry, V ;

Braunschweig, W ;

Brisson, V ;

Bröker, HB ;

Brown, DP ;

Brückner, W ;

Bruel, P ;

Bruncko, D ;

Bürger, J ;

Büsser, FW ;

Bunyatyan, A ;

Burkhardt, H ;

Burrage, A ;

Buschhorn, G ;

Campbell, AJ ;

Cao, J ;

Carli, T ;

Caron, S ;

Clarke, D ;

Clerbaux, B ;

Collard, C ;

Contreras, GJ ;

Coppens, YR ;

Coughlan, JA ;

Cousinou, MC ;

Cox, BE ;

Cozzika, G ;

Cvach, J ;

Dainton, JB .

PHYSICS LETTERS B, 2001, 515 (1-2) :17-29

[10]

Adloff C, 2001, EUR PHYS J C, V19, P429, DOI 10.1007/s100520100622

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