Strangeness production at low Q2 in deep-inelastic ep scattering at HERA

被引：8

作者：

Aaron, F. D. ^{[1
]}

Alexa, C. ^{[1
]}

Andreev, V. ^{[26
]}

Antunovic, B. ^{[12
,14
]}

Aplin, S. ^{[12
,14
]}

Asmone, A. ^{[35
,36
]}

Astvatsatourov, A. ^{[5
,6
]}

Bacchetta, A. ^{[12
,13
]}

Backovic, S. ^{[32
]}

Baghdasaryan, A. ^{[41
]}

Barrelet, E. ^{[30
,31
]}

Bartel, W. ^{[12
]}

Beckingham, M. ^{[12
]}

Begzsuren, K. ^{[38
]}

Behnke, O. ^{[15
]}

Belousov, A. ^{[26
,27
]}

Berger, N. ^{[43
]}

Bizot, J. C. ^{[28
]}

Boenig, M. -O. ^{[9
,11
]}

Boudry, V. ^{[29
]}

Bozovic-Jelisavcic, I. ^{[3
]}

Bracinik, J. ^{[4
]}

Brandt, G. ^{[12
]}

Brinkmann, M. ^{[12
]}

Brisson, V. ^{[28
]}

Bruncko, D. ^{[17
]}

Bunyatyan, A. ^{[14
,41
]}

Buschhorn, G. ^{[27
]}

Bystritskaya, L. ^{[25
]}

Campbell, A. J. ^{[12
]}

Cantun Avila, K. B. ^{[23
]}

Cassol-Brunner, F. ^{[22
]}

Cerny, K. ^{[17
,34
]}

Cerny, V.

Chekelian, V. ^{[27
]}

Cholewa, A. ^{[12
]}

Contreras, J. G. ^{[23
]}

Coughlan, J. A. ^{[7
]}

Cozzika, G. ^{[11
]}

Cvach, J. ^{[33
]}

Dainton, J. B. ^{[19
]}

Daum, K. ^{[40
]}

Deak, M. ^{[12
]}

de Boer, Y. ^{[12
]}

Delcourt, B. ^{[28
]}

Del Degan, M. ^{[43
]}

Delvax, J. ^{[5
,6
]}

De Roeck, A. ^{[12
]}

De Wolf, E. A. ^{[5
,6
]}

Diaconu, C. ^{[22
]}

机构：

[1] NIPNE, Bucharest, Romania

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

[3] Vinca Inst Nucl Sci, Belgrade, Serbia

[4] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

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

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

[7] Rutherford Appleton Lab, Chilton, Didcot, England

[8] Inst Nucl Phys, Krakow, Poland

[9] TU Dortmund, Inst Phys, Dortmund, Germany

[10] Joint Inst Nucl Res, Dubna, Russia

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

[12] DESY, D-2000 Hamburg, Germany

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

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

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

[16] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany

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

[18] Univ Lancaster, Dept Phys, 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 Mediterranee, CNRS, IN2P3, CPPM, Marseille, France

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

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

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

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

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

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

[29] Ecole Polytech, CNRS, LLR, IN2P3, F-91128 Palaiseau, France

[30] Univ Paris 06, LPNHE, Paris, France

[31] Univ Paris 07, LPNHE, Paris, France

[32] Univ Montenegro, Fac Sci, Podgorica, Montenegro

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

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

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

[36] INFN Roma 3, Rome, Italy

[37] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[38] Mongolian Acad Sci, Inst Phys & Technol, Ulaanbaatar, Mongolia

[39] Paul Scherrer Inst, Villigen, Switzerland

[40] Univ Wuppertal, Fachbereich C, Wuppertal, Germany

[41] Yerevan Phys Inst, Yerevan 375036, Armenia

[42] DESY, Zeuthen, Germany

[43] ETH, Inst Teilchenphys, Zurich, Switzerland

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

来源：

EUROPEAN PHYSICAL JOURNAL C | 2009年 / 61卷 / 02期

基金：

英国科学技术设施理事会;

关键词：

LUND MONTE-CARLO; PARTICLE-PRODUCTION; JET FRAGMENTATION; BARYON PRODUCTION; E+E-PHYSICS; PROTON; GENERATOR;

D O I：

10.1140/epjc/s10052-009-0995-1

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：

The production of neutral strange hadrons is investigated using deep-inelastic scattering events measured with the H1 detector at HERA. The measurements are made in the phase space defined by the negative four-momentum transfer squared of the photon 2 < Q(2) < 100 GeV2 and the inelasticity 0.1 < y < 0.6. The K-s(0) s and Lambda((Lambda) over bar) production cross sections and their ratios are determined. K-s(0) s production is compared to the production of charged particles in the same region of phase space. The Lambda-(Lambda) over bar asymmetry is also measured and found to be consistent with zero. Predictions of leading order Monte Carlo programs are compared to the data.

引用

页码：185 / 205

页数：21

共 34 条

[1] Production of π+, K+, K0, K*0, φ, p and Λ0 in hadronic Z0 decays -: art. no. 052001 [J].

Abe, K ;

Abe, T ;

Adam, I ;

Akagi, T ;

Allen, NJ ;

Arodzero, A ;

Ash, WW ;

Aston, D ;

Baird, KG ;

Baltay, C ;

Band, HR ;

Barakat, MB ;

Bardon, O ;

Barklow, TL ;

Bauer, JM ;

Bellodi, G ;

Ben-David, R ;

Benvenuti, AC ;

Bilei, GM ;

Bisello, D ;

Blaylock, G ;

Bogart, JR ;

Bolen, B ;

Bower, GR ;

Brau, JE ;

Breidenbach, M ;

Bugg, WM ;

Burke, D ;

Burnett, TH ;

Burrows, PN ;

Calcaterra, A ;

Caldwell, DO ;

Calloway, D ;

Camanzi, B ;

Carpinelli, M ;

Cassell, R ;

Castaldi, R ;

Castro, A ;

Cavalli-Sforza, M ;

Chou, A ;

Church, E ;

Cohn, HO ;

Coller, JA ;

Convery, MR ;

Cook, V ;

Cotton, R ;

Cowan, RF ;

Coyne, DG ;

Crawford, G .

PHYSICAL REVIEW D, 1999, 59 (05) :1-33

[2] Double Higgs production at the linear colliders and the probing of the Higgs self-coupling [J].

Boudjema, F ;

Chopin, E .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1996, 73 (01) :85-109

[3] 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

[4] 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

[5] A MEASUREMENT OF STRANGE BARYON PRODUCTION IN HADRONIC Z0 DECAYS [J].

ACTON, PD ;

ALEXANDER, G ;

ALLISON, J ;

ALLPORT, PP ;

ANDERSON, KJ ;

ARCELLI, S ;

ASTBURY, A ;

AXEN, D ;

AZUELOS, G ;

BAHAN, GA ;

BAINES, JTM ;

BALL, AH ;

BANKS, J ;

BARLOW, RJ ;

BARNETT, S ;

BATLEY, JR ;

BEAUDOIN, G ;

BECK, A ;

BECKER, J ;

BEHNKE, T ;

BELL, KW ;

BELLA, G ;

BERLICH, P ;

BETHKE, S ;

BIEBEL, O ;

BINDER, U ;

BLOODWORTH, IJ ;

BOCK, P ;

BODEN, B ;

BOSCH, HM ;

BOUGEROLLE, S ;

BREUKER, H ;

BROWN, RM ;

BUIJS, A ;

BURCKHART, HJ ;

CAPILUPPI, P ;

CARNEGIE, RK ;

CARTER, AA ;

CARTER, JR ;

CHANG, CY ;

CHARLTON, DG ;

CLARKE, PEL ;

COHEN, I ;

CLAYTON, JC ;

COLLINS, WJ ;

CONBOY, JE ;

COOPER, M ;

COUPLAND, M ;

CUFFIANI, M ;

DADO, S .

PHYSICS LETTERS B, 1992, 291 (04) :503-518

[6] Measurement and QCD analysis of neutral and charged current cross sections 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 ;

Cao, J ;

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 .

EUROPEAN PHYSICAL JOURNAL C, 2003, 30 (01) :1-32

[7] Strangeness production in deep-inelastic positron-proton scattering at HERA [J].

Aid, S ;

Anderson, M ;

Andreev, V ;

Andrieu, B ;

Appuhn, RD ;

Babaev, A ;

Bahr, J ;

Ban, J ;

Ban, Y ;

Baranov, P ;

Barrelet, E ;

Barschke, R ;

Bartel, W ;

Barth, M ;

Bassler, U ;

Behrend, HJ ;

Belousov, A ;

Berger, C ;

Bernardi, G ;

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 ;

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 ;

Cocks, S .

NUCLEAR PHYSICS B, 1996, 480 (1-2) :3-34

[8] Strange baryon production in hadronic Z(0) decays [J].

Alexander, G ;

Allison, J ;

Altekamp, N ;

Ametewee, K ;

Anderson, KJ ;

Anderson, S ;

Arcelli, S ;

Asai, S ;

Axen, D ;

Azuelos, G ;

Ball, AH ;

Barberio, E ;

Barlow, RJ ;

Bartoldus, R ;

Batley, JR ;

Bechtluft, J ;

Beeston, C ;

Behnke, T ;

Bell, AN ;

Bell, KW ;

Bella, G ;

Bentvelsen, S ;

Berlich, P ;

Bethke, S ;

Biebel, O ;

Blobel, V ;

Bloodworth, IJ ;

Bloomer, JE ;

Bobinski, M ;

Bock, P ;

Bosch, HM ;

Boutemeur, M ;

Bouwens, BT ;

Braibant, S ;

Brown, RM ;

Burckhart, HJ ;

Burgard, C ;

Burgin, R ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlesworth, C ;

Charlton, DG ;

Chrisman, D ;

Chu, SL ;

Clarke, PEL ;

Cohen, I ;

Conboy, JE .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1997, 73 (04) :569-585

[9]

ALTHOFF M, 1985, Z PHYS C PART FIELDS, V27, P27, DOI 10.1007/BF01642477

[10] PARTON FRAGMENTATION AND STRING DYNAMICS [J].

ANDERSSON, B ;

GUSTAFSON, G ;

INGELMAN, G ;

SJOSTRAND, T .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1983, 97 (2-3) :31-145

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