Measurement of open beauty production in photoproduction at HERA

被引：86

作者：

Breitweg, J

Chekanov, S

Derrick, M

Krakauer, D

Magill, S

Musgrave, B

Pellegrino, A

Repond, J

Stanek, R

Yoshida, R

Mattingly, MCK

Antonioli, P

Bari, G

Basile, M

Bellagamba, L

Boscherini, D

Bruni, A

Bruni, G

Romeo, GC

Cifarelli, L

Cindolo, F

Contin, A

Corradi, M

De Pasquale, S

Giusti, P

Iacobucci, G

Levi, G

Margotti, A

Massam, T

Nania, R

Palmonari, F

Pesci, A

Sartorelli, G

Zichichi, A

Aghuzumtsyan, G

Amelung, C

Brock, I

Coböken, K

Goers, S

Hartmann, H

Heinloth, K

Hilger, E

Irrgang, P

Jakob, HP

Kappes, A

Katz, UF

Kerger, R

Kind, O

Paul, E

Rautenberg, J

机构：

[1] Argonne Natl Lab, Argonne, IL 60439 USA

[2] Andrews Univ, Berrien Springs, MI 49104 USA

[3] Univ Bologna, Bologna, Italy

[4] Ist Nazl Fis Nucl, I-40126 Bologna, Italy

[5] Univ Bonn, Inst Phys, D-5300 Bonn, Germany

[6] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[7] Univ Calabria, Dept Phys, I-87036 Cosenza, Italy

[8] Ist Nazl Fis Nucl, Cosenza, Italy

[9] Chonnam Natl Univ, Kwangju, South Korea

[10] Columbia Univ, Nevis Labs, Irvington, NY USA

[11] Inst Nucl Phys, Krakow, Poland

[12] Acad Min & Met, Fac Phys & Nucl Techniques, Krakow, Poland

[13] Jagiellonian Univ, Dept Phys, Krakow, Poland

[14] DESY, D-2000 Hamburg, Germany

[15] DESY, Zeuthen, Germany

[16] Univ Florence, Florence, Italy

[17] Ist Nazl Fis Nucl, I-50125 Florence, Italy

[18] Univ Freiburg, Fak Phys, D-7800 Freiburg, Germany

[19] Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland

[20] Univ Hamburg, Inst Expt Phys 1, Hamburg, Germany

[21] Univ Hamburg, Inst Expt Phys 2, Hamburg, Germany

[22] Univ London Imperial Coll Sci Technol & Med, High Energy Nucl Phys Grp, London, England

[23] Forschungszentrum Julich, Inst Kernphys, D-5170 Julich, Germany

[24] KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, Japan

[25] Minist Educ & Sci Kazakhstan, Inst Phys & Technol, Alma Ata, Kazakhstan

[26] Korea Univ, Seoul 136701, South Korea

[27] Kyungpook Natl Univ, Taegu 702701, South Korea

[28] Univ Autonoma Madrid, Dept Fis Teor, Madrid, Spain

[29] McGill Univ, Dept Phys, Montreal, PQ, Canada

[30] Meiji Gakuin Univ, Fac Gen Educ, Yokohama, Kanagawa, Japan

[31] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, Russia

[32] NIKHEF H, NL-1009 DB Amsterdam, Netherlands

[33] Univ Amsterdam, Amsterdam, Netherlands

[34] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[35] Univ Oxford, Dept Phys, Oxford, England

[36] Univ Padua, Dipartimento Fis, Padua, Italy

[37] Ist Nazl Fis Nucl, Padua, Italy

[38] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[39] Polytech Univ, Sagamihara, Kanagawa, Japan

[40] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[41] Ist Nazl Fis Nucl, Rome, Italy

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

[43] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA

[44] Seoul Natl Univ, Seoul, South Korea

[45] Univ Siegen, Fachbereich Phys, D-5900 Siegen, Germany

[46] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys, IL-69978 Tel Aviv, Israel

[47] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[48] Tokyo Metropolitan Univ, Dept Phys, Tokyo, Japan

[49] Univ Turin, Dipartimento Fis Sperimentale, Turin, Italy

[50] Ist Nazl Fis Nucl, I-10125 Turin, Italy

来源：

EUROPEAN PHYSICAL JOURNAL C | 2001年 / 18卷 / 04期

关键词：

D O I：

10.1007/s100520100571

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 and semi-leptonic decay of heavy quarks have been studied in the photoproduction process e(+)p -> e(+) + dijet + e(-) + X with the ZEUS detector st HERA using an integrated luminosity of 38.5 pb(-1). Events with photon-proton centre-of-mass energies, W-gammap, between 134 and 289 GeV and a photon virtuality, Q(2), less than 1 GeV2 were selected requiring at least two jets of transverse energy E-T(jet(2)) > 7(6) GeV and an electron in the final state. The electrons were identified by employing the ionisation energy loss measurement. The contribution of beauty quarks was determined using the transverse momentum of the electron relative to the axis of the closest jet, p(T)(rol). The data, after background subtraction, were fit with a Monte Carlo simulation including beauty and charm decays, The measured beauty cross section was extrapolated to the parton level with the b quark restricted to the region of tranverse momentum p(T)(b) > p(T)(min) = 5 GeV and pseudorapidity \ eta (b)\ < 2 The extrapolated cross section is 1.6 +/- 0.4 (stat.)(-0.5)(+0.3), (syst.)(-0.4)(+0.2) (ext.) nb. The result is compared to a perturbative QCD calculation performed to next-to-leading order.

引用

页码：625 / 637

页数：13

共 54 条

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← 1 2 3 4 5 6 →

共 54 条

[1] J/Psi production in p(p)over-bar collisions at root s=1.8 TeV [J].

Abachi, S ;

Abbott, B ;

Abolins, M ;

Acharya, BS ;

Adam, I ;

Adams, DL ;

Adams, M ;

Ahn, S ;

Aihara, H ;

Alitti, J ;

Alvarez, G ;

Alves, GA ;

Amidi, E ;

Amos, N ;

Anderson, EW ;

Aronson, SH ;

Astur, R ;

Avery, RE ;

Baden, A ;

Balamurali, V ;

Balderston, J ;

Baldin, B ;

Bantly, J ;

Bartlett, JF ;

Bazizi, K ;

Bendich, J ;

Beri, SB ;

Bertram, I ;

Bezzubov, VA ;

Bhat, PC ;

Bhatnagar, V ;

Bhattacharjee, M ;

Bischoff, A ;

Biswas, N ;

Blazey, G ;

Blessing, S ;

Bloom, P ;

Boehnlein, A ;

Bojko, NI ;

Borcherding, F ;

Borders, J ;

Boswell, C ;

Brandt, A ;

Brock, R ;

Bross, A ;

Buchholz, D ;

Burtovoi, VS ;

Butler, JM ;

Carvalho, W ;

Casey, D .

PHYSICS LETTERS B, 1996, 370 (1-2) :239-248

[2] INCLUSIVE MU AND B-QUARK PRODUCTION CROSS-SECTIONS IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV [J].

ABACHI, S ;

ABBOTT, B ;

ABOLINS, M ;

ACHARYA, BS ;

ADAM, I ;

ADAMS, DL ;

ADAMS, M ;

AHN, S ;

AIHARA, H ;

ALVAREZ, G ;

ALVES, GA ;

AMIDI, E ;

AMOS, N ;

ANDERSON, EW ;

ARONSON, SH ;

ASTUR, R ;

AVERY, RE ;

BADEN, A ;

BALAMURALI, V ;

BALDERSTON, J ;

BALDIN, B ;

BANTLY, J ;

BARTLETT, JF ;

BAZIZI, K ;

BEHNKE, T ;

BENDICH, J ;

BERI, SB ;

BERTRAM, I ;

BEZZUBOV, VA ;

BHAT, PC ;

BHATNAGAR, V ;

BHATTACHARJEE, M ;

BISCHOFF, A ;

BISWAS, N ;

BLAZEY, G ;

BLESSING, S ;

BOEHNLEIN, A ;

BOJKO, NI ;

BORCHERDING, F ;

BORDERS, J ;

BOSWELL, C ;

BRANDT, A ;

BROCK, R ;

BROSS, A ;

BUCHHOLZ, D ;

BURTOVOI, VS ;

BUTLER, JM ;

CALLOT, O ;

CASEY, D ;

CASTILLAVALDEZ, H .

PHYSICAL REVIEW LETTERS, 1995, 74 (18) :3548-3552

[3] MEASUREMENT OF THE BOTTOM-QUARK PRODUCTION CROSS-SECTION USING SEMILEPTONIC DECAY ELECTRONS IN P(P)OVER-BAR COLLISIONS AT ROOT-S = 1.8 TEV [J].

ABE, F ;

ALBROW, M ;

AMIDEI, D ;

ANWAYWIESE, C ;

APOLLINARI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

AUSTERN, M ;

AZZI, P ;

BADEN, AR ;

BACCHETTA, N ;

BADGETT, W ;

BAILEY, MW ;

BAMBERGER, A ;

DEBARBARO, P ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BARNETT, BA ;

BAUER, G ;

BAUMANN, T ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENJAMIN, D ;

BENLLOCH, J ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BIERY, K ;

BHADRA, S ;

BINKLEY, M ;

BISELLO, D ;

BLAIR, R ;

BLOCKER, C ;

BODEK, A ;

BOLOGNESI, V ;

BOOTH, AW ;

BOSWELL, C ;

BRANDENBURG, G ;

BROWN, D ;

BUCKLEYGEER, E ;

BUDD, HS ;

BUSETTO, G ;

BYONWAGNER, A ;

BYRUM, KL ;

CAMPAGNARI, C ;

CAMPBELL, M .

PHYSICAL REVIEW LETTERS, 1993, 71 (04) :500-504

[4] MEASUREMENT OF BOTTOM QUARK PRODUCTION IN 1.8 TEV P(P)OVER-BAR COLLISIONS USING MUONS FROM B-QUARK DECAYS [J].

ABE, F ;

ALBROW, M ;

AMIDEI, D ;

ANWAYWIESE, C ;

APOLLINARI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

AZZI, P ;

BACCHETTA, N ;

BADEN, AR ;

BADGETT, W ;

BAILEY, MW ;

BAMBERGER, A ;

DEBARBARO, P ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BARNETT, BA ;

BAUER, G ;

BAUMANN, T ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENJAMIN, D ;

BENLLOCH, J ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BIERY, K ;

BHADRA, S ;

BINKLEY, M ;

BISELLO, D ;

BLAIR, R ;

BLOCKER, C ;

BODEK, A ;

BOLOGNESI, V ;

BOOTH, AW ;

BOSWELL, C ;

BRANDENBURG, G ;

BROWN, D ;

BUCKLEYGEER, E ;

BUDD, HS ;

BUSETTO, G ;

BYONWAGNER, A ;

BYRUM, KL ;

CAMPAGNARI, C ;

CAMPBELL, M ;

CANER, A .

PHYSICAL REVIEW LETTERS, 1993, 71 (15) :2396-2400

[5] INCLUSIVE CHI-C AND B-QUARK PRODUCTION IN (P)OVER-BAR-P COLLISIONS AT ROOT-S = 1.8 TEV [J].

ABE, F ;

ALBROW, M ;

AMIDEI, D ;

ANWAYWIESE, C ;

APOLLINARI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

AZZI, P ;

BACCHETTA, N ;

BADEN, AR ;

BADGETT, W ;

BAILEY, MW ;

BAMBERGER, A ;

DEBARBARO, P ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BARNETT, BA ;

BAUER, G ;

BAUMANN, T ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENJAMIN, D ;

BENLLOCH, J ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BIERY, K ;

BHADRA, S ;

BINKLEY, M ;

BISELLO, D ;

BLAIR, R ;

BLOCKER, C ;

BODEK, A ;

BOLOGNESI, V ;

BOOTH, AW ;

BOSWELL, C ;

BRANDENBURG, G ;

BROWN, D ;

BUCKLEYGEER, E ;

BUDD, HS ;

BUSETTO, G ;

BYONWAGNER, A ;

BYRUM, KL ;

CAMPAGNARI, C ;

CAMPBELL, M ;

CANER, A .

PHYSICAL REVIEW LETTERS, 1993, 71 (16) :2537-2541

[6] INCLUSIVE J/OMEGA, OMEGA(2S), AND B-QUARK PRODUCTION IN (P)OVER-BAR-P COLLISIONS AT ROOT-S = 1.8 TEV [J].

ABE, F ;

AMIDEI, D ;

ANWAYWIESE, C ;

APOLLINARI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

AZZI, P ;

BADEN, AR ;

BACCHETTA, N ;

BADGETT, W ;

BAILEY, MW ;

BAMBERGER, A ;

DEBARBARO, P ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BARNETT, BA ;

BAUER, G ;

BAUMANN, T ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENJAMIN, D ;

BENLLOCH, J ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BIERY, K ;

BHADRA, S ;

BINKLEY, M ;

BISELLO, D ;

BLAIR, R ;

BLOCKER, C ;

BODEK, A ;

BOLOGNESI, V ;

BOOTH, AW ;

BOSWELL, C ;

BRANDENBURG, G ;

BROWN, D ;

BUCKLEYGEER, E ;

BUDD, HS ;

BUSETTO, G ;

BYONWAGNER, A ;

BYRUM, KL ;

CAMPAGNARI, C ;

CAMPBELL, M ;

CANER, A ;

CAREY, R .

PHYSICAL REVIEW LETTERS, 1992, 69 (26) :3704-3708

[7] MEASUREMENT OF THE BETA-MESON AND B-QUARK CROSS-SECTIONS AT ROOT-S = 1.8 TEV USING THE EXCLUSIVE DECAY BETA+/--]J/PSI-KAPPA+/- [J].

ABE, F ;

AMIDEI, D ;

APOLLINARI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

BADEN, AR ;

BACCHETTA, N ;

BAILEY, MW ;

BAMBERGER, A ;

DEBARBARO, P ;

BARNETT, BA ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BAUMANN, T ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENJAMIN, D ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BHADRA, S ;

BINKLEY, M ;

BISELLO, D ;

BLAIR, R ;

BLOCKER, C ;

BODEK, A ;

BOLOGNESI, V ;

BOOTH, AW ;

BOSWELL, C ;

BRANDENBURG, G ;

BROWN, D ;

BUCKLEYGEER, E ;

BUDD, HS ;

BUSETTO, G ;

BYONWAGNER, A ;

BYRUM, KL ;

CAMPAGNARI, C ;

CAMPBELL, M ;

CANER, A ;

CAREY, R ;

CARITHERS, W ;

CARLSMITH, D ;

CARROLL, JT ;

CASHMORE, R ;

CASTRO, A ;

CERVELLI, F .

PHYSICAL REVIEW LETTERS, 1992, 68 (23) :3403-3407

[8] MEASUREMENT OF THE B-MESON B-QUARK CROSS-SECTIONS AT ROOT-S=1.8 TEV USING THE EXCLUSIVE DECAY B(0)-]J/PSI-K-ASTERISK(892)0 [J].

ABE, F ;

ALBROW, M ;

AMIDEI, D ;

ANWAYWIESE, C ;

APOLLINARI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

AZZI, P ;

BACCHETTA, N ;

BADEN, AR ;

BADGETT, W ;

BAILEY, MW ;

BAMBERGER, A ;

DEBARBARO, P ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BARNETT, BA ;

BAUER, G ;

BAUMANN, T ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENJAMIN, D ;

BENLLOCH, J ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BIERY, K ;

BHADRA, S ;

BINKLEY, M ;

BISELLO, D ;

BLAIR, R ;

BLOCKER, C ;

BODEK, A ;

BOLOGNESI, V ;

BOOTH, AW ;

BOSWELL, C ;

BRANDENBURG, G ;

BROWN, D ;

BUCKLEYGEER, E ;

BUDD, HS ;

BUSETTO, G ;

BYONWAGNER, A ;

BYRUM, KL ;

CAMPAGNARI, C ;

CAMPBELL, M ;

CANER, A .

PHYSICAL REVIEW D, 1994, 50 (07) :4252-4257

[9] Measurement of D* meson cross sections at HERA and determination of the gluon density in the proton using NLO QCD [J].

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, HJ ;

Beier, C ;

Belousov, A ;

Berger, C ;

Bernardi, G ;

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 ;

Burrage, A ;

Buschhorn, G ;

Calvet, D ;

Campbell, AJ ;

Carli, T ;

Chabert, E ;

Charlet, M ;

Clarke, D ;

Clerbaux, B ;

Contreras, JG ;

Cormack, C ;

Coughlan, JA ;

Cousinou, MC ;

Cox, BE .

NUCLEAR PHYSICS B, 1999, 545 (1-3) :21-44

[10] Measurement of open beauty production at HERA [J].

Adloff, C ;

Andreev, V ;

Andrieu, B ;

Arkadov, A ;

Astvatsatourov, A ;

Ayyaz, I ;

Babaev, A ;

Bähr, J ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Bassler, U ;

Bate, P ;

Beglarian, A ;

Behnke, O ;

Beier, C ;

Belousov, A ;

Benisch, T ;

Berger, C ;

Bernardi, G ;

Berndt, T ;

Bertrand-Coremans, G ;

Biddulph, P ;

Bizot, JC ;

Boudry, V ;

Braunschweig, W ;

Brisson, V ;

Bröker, HB ;

Brown, DP ;

Brückner, W ;

Bruel, P ;

Bruncko, D ;

Bürger, J ;

Büsser, FW ;

Bunyatyan, A ;

Burke, S ;

Burrage, A ;

Buschhorn, G ;

Calvet, D ;

Campbell, AJ ;

Cao, J ;

Carli, T ;

Chabert, E ;

Charlet, M ;

Clarke, D ;

Clerbaux, B ;

Collard, C ;

Contreras, JG ;

Coughlan, JA ;

Cousinou, MC .

PHYSICS LETTERS B, 1999, 467 (1-2) :156-164

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