Measurement of leading proton and neutron production in deep-inelastic scattering at HERA

被引：85

作者：

Adloff, C ^{[1
]}

Anderson, M

Andreev, V

Andrieu, B

Arkadov, V

Arndt, C

Ayyaz, I

Babaev, A

Bähr, J

Baranov, P

Barrelet, E

Bartel, W

Bassler, U

Bate, P

Beglarian, A

Behnke, O

Behrend, HJ

Beier, C

Belousov, A

Berger, C

Bernardi, G

Berndt, T

Bertrand-Coremans, G

Biddulph, P

Bizot, JC

Boudry, V

Braunschweig, W

Brisson, V

Brown, DP

Brückner, W

Bruel, P

Bruncko, D

Bürger, J

Büsser, FW

Buniatian, A

Burke, S

Buschhorn, G

Calvet, D

Campbell, AJ

Carli, T

Chabert, E

Charlet, M

Clarke, D

Clerbaux, B

Cocks, S

Contreras, JG

Cormack, C

Coughlan, JA

Cousinou, MC

Cox, BE

机构：

[1] Berg Univ Gesamthsch Wuppertal, Fachbereich Phys, Wuppertal, 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] Free Univ Brussels, ULB, Inter Univ Inst High Energies, Brussels, Belgium

[6] Univ Instelling Antwerp, B-2610 Wilrijk, Belgium

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

[8] Inst Nucl Phys, Krakow, Poland

[9] Univ Calif Davis, Dept Phys, Davis, CA USA

[10] Univ Calif Davis, IIRPA, Davis, CA USA

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

[12] Joint Inst Nucl Res, Dubna, Russia

[13] CEA, DSM, DAPNIA, Gif Sur Yvette, France

[14] DESY, D-2000 Hamburg, Germany

[15] Univ Hamburg, Inst Expt Phys 2, D-2000 Hamburg, Germany

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

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

[18] Univ Heidelberg, Inst Hochenergiephys, D-6900 Heidelberg, Germany

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

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

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

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

[23] Univ London Queen Mary & Westfield Coll, London E1 4NS, England

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

[25] Univ Manchester, Dept Phys & Astron, Manchester, Lancs, England

[26] Univ Aix Marseille 2, CNRS, IN2P3, CPPM, F-13284 Marseille 07, France

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

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

[29] Max Planck Inst Phys, D-80805 Munich, Germany

[30] Univ Paris Sud, CNRS, IN2P3, LAL, Orsay, France

[31] Ecole Polytech, CNRS, LPNHE, IN2P3, F-91128 Palaiseau, France

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

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

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

[35] Charles Univ, Nucl Ctr, Prague, Czech Republic

[36] INFN Roma 1, Rome, Italy

[37] Univ Roma 3, Dipartimento Fis, Rome, Italy

[38] Paul Scherrer Inst, Villigen, Switzerland

[39] DESY, Inst Hochenergiephys, Zeuthen, Germany

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

[41] Humboldt Univ, Inst Phys, Berlin, Germany

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

[43] CINVESTAV, Dept Fis Ap, Merida, Yucatan, Mexico

来源：

EUROPEAN PHYSICAL JOURNAL C | 1999年 / 6卷 / 04期

关键词：

D O I：

10.1007/s100520050368

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：

Deep-inelastic scattering events with a leading baryon have been detected by the I-IL experiment at HERA using a forward proton spectrometer and a forward neutron calorimeter. Semi-inclusive cross sections have been measured in the kinematic region 2 less than or equal to Q(2) less than or equal to 50GeV(2), 6 x 10(-5) less than or equal to x less than or equal to 6 x 10(-3) and baryon p(T) less than or equal to 200 MeV, for events with a final-state proton with energy 580 less than or equal to E' less than or equal to 740 GeV, or a neutron with energy E' greater than or equal to 160 GeV. The measurements are used to test production models and factorization hypotheses. A Regge model of leading baryon production which consists of pion, pomeron and secondary reggeon exchanges gives an acceptable description of both semi-inclusive cross sections in the region 0.7 less than or equal to E'/E-p less than or equal to 0.9, where E-p is the proton beam energy. The leading neutron data are used to estimate for the first time the structure function of the pion at small Bjorken-x.

引用

页码：587 / 602

页数：16

共 50 条

[1] Measurement of leading proton and neutron production in deep-inelastic scattering at HERA
Adloff C.
Anderson M.
Andreev V.
Andrieu B.
Arkadov V.
Arndt C.
Ayyaz I.
Babaev A.
Bähr J.
Baranov P.
Barrelet E.
Bartel W.
Bassler U.
Bate P.
Beck M.
Beglarian A.
Behnke O.
Behrend H.-J.
Beier C.
Belousov A.
Berger Ch.
Bernardi G.
Berndt T.
Bertrand-Coremans G.
Biddulph P.
Bizot J.C.
Boudry V.
Braunschweig W.
Brisson V.
Brown D.P.
Brückner W.
Bruel P.
Bruncko D.
Bürger J.
Büsser F.W.
Buniatian A.
Burke S.
Buschhorn G.
Calvet D.
Campbell A.J.
Carli T.
Chabert E.
Charlet M.
Clarke D.
Clerbaux B.
Cocks S.
Contreras J.G.
Cormack C.
Coughlan J.A.
Cousinou M.-C.
The European Physical Journal C - Particles and Fields, 1999, 6 (4): : 587 - 602
[2] Measurement of leading neutron production in deep-inelastic scattering at HERA
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V. Cerny
V. Chekelian
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Delvax, J.
De Wolf, E. A.
Diaconu, C.
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Dodonov, V.
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J. Bracinik
G. Brandt
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[10] Leading neutron production in deep inelastic scattering at HERA
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DEEP INELASTIC SCATTERING AND QCD - 5TH INTERNATIONAL WORKSHOP, 1997, (407): : 523 - 526

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