Improved measurement of the b[overline b] production cross section in 920 GeV 
fixed-target proton-nucleus collisionsnd in 920 GeV fixed-target proton–nucleus 
collisions

Abt, I.; Adams, M.; Albrecht, H.; Amaral, V.; Amorim, A.; Aplin, S. J.; Aushev, V.; Bagaturia, Y.; Balagura, V.; Bargiotti, M.; Barsukova, O.; Bastos, J.; Bauer, C.; Bauer, T. S.; Belkov, A.; Belkov, Ar; Bertin, A.; Bobchenko, B.; Boecker, M.; Bogatyrev, A.; Bohm, G.; Braeuer, M.; Bruinsma, M.; Bruschi, M.; Buchholz, P.; Buran, T.; Carvalho, J.; Conde, P.; Cruse, C.; Dam, M.; Danielsen, K. M.; Danilov, M.; De Castro, S.; Deppe, H.; Dong, X.; Dreis, H. B.; Egorytchev, V.; Ehret, K.; Eisele, F.; Emeliyanov, D.; Essenov, S.; Fabbri, L.; Faccioli, P.; Feuerstack-Raible, M.; Flammer, J.; Fominykh, B.; Funcke, M.; Garrido, L.; Giacobbe, B.; Glaess, J.; Goloubkov, D.; Goloubkov, Y.; Golutvin, A.; Golutvin, I.; Gorbounov, I.; Gorisek, A.; Gouchtchine, O.; Goulart, D. C.; Gradl, S.; Gradl, W.; Guilitsky, Y.; Hansen, J. D.; Hernandez, J. M.; Hofmann, W.; Hott, T.; Hulsbergen, W.; Husemann, U.; Igonkina, O.; Ispiryan, M.; Jagla, T.; Jiang, C.; Kapitza, H.; Karabekyan, S.; Karpenko, N.; Keller, S.; Khasanov, F.; Kiryushin, Y.; Knöpfle, K. T.; Kolanoski, H.; Korpar, S.; Krauss, C.; Kreuzer, P.; Krizan, P.; Kruecker, D.; Kvaratskheliia, T.; Lanyov, A.; Lau, K.; Lewendel, B.; Lohse, T.; Maenner, R.; Masciocchi, S.; Massa, I.; Matchikhilian, L.; Medin, G.; Medinnis, M.; Mevius, M.; Michetti, A.; Mikhailov, Y.; Mizuk, R.; Muresan, R.; Negodaev, M.; Noerenberg, M.; Nowak, S.; Nunez Pardo de Vera, M. T.; Ouchrif, M.; Ould-Saada, F.; Padilla, C.; Peralta, D.; Pernack, R.; Pestotnik, R.; Piccinini, M.; Pleier, M. A.; Poli, M.; Popov, V.; Pose, D.; Pugatch, V.; Pylypchenko, Y.; Pyrlik, J.; Reeves, K.; Ressing, D.; Riu, I.; Robmann, P.; Rybnikov, V.; Sanchez, F.; Sbrizzi, A.; Schmelling, M.; Schmidt, B.; Schreiner, A.; Schroeder, H.; Schwartz, A. J.; Schwarz, A. S.; Schwenninger, B.; Schwingenheuer, B.; Sciacca, F.; Semprini-Cesari, N.; Shuvalov, S.; Sozuer, L.; Solunin, S.; Somov, A.; Somov, S.; Spengler, J.; Spighi, R.; Spiridonov, A.; Stanovnik, A.; Staric, M.; Stegmann, C.; Symalla, M.; Tikhomirov, I.; Titov, M.; Tsakov, I.; Uwer, U.; van Eldik, C.; Vassiliev, Y.; Villa, M.; Vitale, A.; Vukotic, I.; Wahlberg, H.; Walenta, A. H.; Walter, M.; Wang, J. J.; Wegener, D.; Werthenbach, U.; Wolters, H.; Wurth, R.; Wurz, A.; Zaitsev, Y.; Zavertyaev, M.; Zeuner, T.; Zhelezov, A.; Zheng, Z.; Zimmermann, R.; Zivko, T.; Zoccoli, A.; Aleksandrov, A.; Batista, J.; Grimaldi, F.; Kessler, J.; Kupper, S.; zur Nedden, M.; Prystupa, S.; Rick, H.; Rostovtseva, I.; Silva, L.; Subramania, H. S.; Lomonosov, B.; Agari, Michaela; Belotelov, I.; Erhan, S.; Gellrich, A.; Hohlmann, M.; Kisel, I.; Klinkby, E.; Mankel, R.; Petersen, B.; Schwanke, U.; the HERA-B Collaboration

doi:10.1103/PhysRevD.73.052005

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Improved measurement of the b[overline b] production cross section in 920 GeV fixed-target proton-nucleus collisionsnd in 920 GeV fixed-target proton–nucleus collisions

Abt, I., Adams, M., Albrecht, H., Amaral, V., Amorim, A., Aplin, S. J., et al. (2006). Improved measurement of the b[overline b] production cross section in 920 GeV fixed-target proton-nucleus collisionsnd in 920 GeV fixed-target proton–nucleus collisions. Physical Review D, 73(5-6): 052005, pp. 1-17. doi:10.1103/PhysRevD.73.052005.

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Abt, I.¹, Author
Adams, M.¹, Author
Albrecht, H.¹, Author
Amaral, V.¹, Author
Amorim, A.¹, Author
Aplin, S. J.¹, Author
Aushev, V.¹, Author
Bagaturia, Y.¹, Author
Balagura, V.¹, Author
Bargiotti, M.¹, Author
Barsukova, O.¹, Author
Bastos, J.¹, Author
Bauer, C.², Author
Bauer, T. S.¹, Author
Belkov, A.¹, Author
Belkov, Ar¹, Author
Bertin, A.¹, Author
Bobchenko, B.¹, Author
Boecker, M.¹, Author
Bogatyrev, A.¹, Author
Bohm, G.¹, AuthorBraeuer, M.², Author Bruinsma, M.¹, AuthorBruschi, M.¹, AuthorBuchholz, P.¹, AuthorBuran, T.¹, AuthorCarvalho, J.¹, AuthorConde, P.¹, AuthorCruse, C.¹, AuthorDam, M.¹, AuthorDanielsen, K. M.¹, AuthorDanilov, M.¹, AuthorDe Castro, S.¹, AuthorDeppe, H.¹, AuthorDong, X.¹, AuthorDreis, H. B.¹, AuthorEgorytchev, V.¹, AuthorEhret, K.², Author Eisele, F.¹, AuthorEmeliyanov, D.¹, AuthorEssenov, S.¹, AuthorFabbri, L.¹, AuthorFaccioli, P.¹, AuthorFeuerstack-Raible, M.¹, AuthorFlammer, J.¹, AuthorFominykh, B.¹, AuthorFuncke, M.¹, AuthorGarrido, L.¹, AuthorGiacobbe, B.¹, AuthorGlaess, J.¹, AuthorGoloubkov, D.¹, AuthorGoloubkov, Y.¹, AuthorGolutvin, A.¹, AuthorGolutvin, I.¹, AuthorGorbounov, I.¹, AuthorGorisek, A.¹, AuthorGouchtchine, O.¹, AuthorGoulart, D. C.¹, AuthorGradl, S.¹, AuthorGradl, W.¹, AuthorGuilitsky, Y.¹, AuthorHansen, J. D.¹, AuthorHernandez, J. M.¹, AuthorHofmann, W.², Author Hott, T.¹, AuthorHulsbergen, W.¹, AuthorHusemann, U.¹, AuthorIgonkina, O.¹, AuthorIspiryan, M.¹, AuthorJagla, T.², Author Jiang, C.¹, AuthorKapitza, H.¹, AuthorKarabekyan, S.¹, AuthorKarpenko, N.¹, AuthorKeller, S.¹, AuthorKhasanov, F.¹, AuthorKiryushin, Y.¹, AuthorKnöpfle, K. T.², Author Kolanoski, H.¹, AuthorKorpar, S.¹, AuthorKrauss, C.¹, AuthorKreuzer, P.¹, AuthorKrizan, P.¹, AuthorKruecker, D.¹, AuthorKvaratskheliia, T.¹, AuthorLanyov, A.¹, AuthorLau, K.¹, AuthorLewendel, B.¹, AuthorLohse, T.¹, AuthorMaenner, R.¹, AuthorMasciocchi, S.², Author Massa, I.¹, AuthorMatchikhilian, L.¹, AuthorMedin, G.¹, AuthorMedinnis, M.¹, AuthorMevius, M.¹, AuthorMichetti, A.¹, AuthorMikhailov, Y.¹, AuthorMizuk, R.¹, AuthorMuresan, R.¹, AuthorNegodaev, M.¹, AuthorNoerenberg, M.¹, AuthorNowak, S.¹, AuthorNunez Pardo de Vera, M. T.¹, AuthorOuchrif, M.¹, AuthorOuld-Saada, F.¹, AuthorPadilla, C.¹, AuthorPeralta, D.¹, AuthorPernack, R.¹, AuthorPestotnik, R.¹, AuthorPiccinini, M.¹, AuthorPleier, M. A.², Author Poli, M.¹, AuthorPopov, V.¹, AuthorPose, D.¹, AuthorPugatch, V.², Author Pylypchenko, Y.¹, AuthorPyrlik, J.¹, AuthorReeves, K.², Author Ressing, D.¹, AuthorRiu, I.¹, AuthorRobmann, P.¹, AuthorRybnikov, V.¹, AuthorSanchez, F.², Author Sbrizzi, A.¹, AuthorSchmelling, M.², Author Schmidt, B.¹, AuthorSchreiner, A.¹, AuthorSchroeder, H.¹, AuthorSchwartz, A. J.¹, AuthorSchwarz, A. S.¹, AuthorSchwenninger, B.¹, AuthorSchwingenheuer, B.², Author Sciacca, F.², Author Semprini-Cesari, N.¹, AuthorShuvalov, S.¹, AuthorSozuer, L.¹, AuthorSolunin, S.¹, AuthorSomov, A.¹, AuthorSomov, S.¹, AuthorSpengler, J.², Author Spighi, R.¹, AuthorSpiridonov, A.¹, AuthorStanovnik, A.¹, AuthorStaric, M.¹, AuthorStegmann, C.¹, AuthorSymalla, M.¹, AuthorTikhomirov, I.¹, AuthorTitov, M.¹, AuthorTsakov, I.¹, AuthorUwer, U.¹, Authorvan Eldik, C.², Author Vassiliev, Y.¹, AuthorVilla, M.¹, AuthorVitale, A.¹, AuthorVukotic, I.¹, AuthorWahlberg, H.¹, AuthorWalenta, A. H.¹, AuthorWalter, M.¹, AuthorWang, J. J.¹, AuthorWegener, D.¹, AuthorWerthenbach, U.¹, AuthorWolters, H.¹, AuthorWurth, R.¹, AuthorWurz, A.¹, AuthorZaitsev, Y.¹, AuthorZavertyaev, M.², Author Zeuner, T.¹, AuthorZhelezov, A.¹, AuthorZheng, Z.¹, AuthorZimmermann, R.¹, AuthorZivko, T.¹, AuthorZoccoli, A.¹, AuthorAleksandrov, A.¹, AuthorBatista, J.¹, AuthorGrimaldi, F.¹, AuthorKessler, J.¹, AuthorKupper, S.¹, Authorzur Nedden, M.¹, AuthorPrystupa, S.¹, AuthorRick, H.¹, AuthorRostovtseva, I.¹, AuthorSilva, L.¹, AuthorSubramania, H. S.¹, AuthorLomonosov, B.¹, AuthorAgari, Michaela², Author Belotelov, I.¹, AuthorErhan, S.¹, AuthorGellrich, A.¹, AuthorHohlmann, M.¹, AuthorKisel, I.¹, AuthorKlinkby, E.¹, AuthorMankel, R.¹, AuthorPetersen, B.¹, AuthorSchwanke, U.¹, Authorthe HERA-B Collaboration, Editor more..

Affiliations:
11NIKHEF, 1009 DB Amsterdam, The Netherlands 2Department ECM, Faculty of Physics, University of Barcelona, E-08028 Barcelona, Spain 3Institute for High Energy Physics, Beijing 100039, People's Republic of China 4Institute of Engineering Physics, Tsinghua University, Beijing 100084, People's Republic of China 5Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany 6Dipartimento di Fisica dell' Università di Bologna and INFN Sezione di Bologna, I-40126 Bologna, Italy 7Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA 8LIP Coimbra, P-3004-516 Coimbra, Portugal 9Niels Bohr Institutet, DK 2100 Copenhagen, Denmark 10Institut für Physik, Universität Dortmund, D-44221 Dortmund, Germany 11Joint Institute for Nuclear Research Dubna, 141980 Dubna, Moscow region, Russia 12DESY, D-22603 Hamburg, Germany 13Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany 14Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany 15Department of Physics, University of Houston, Houston, Texas 77204, USA 16Institute for Nuclear Research, Ukrainian Academy of Science, 03680 Kiev, Ukraine 17J. Stefan Institute, 1001 Ljubljana, Slovenia 18University of Ljubljana, 1001 Ljubljana, Slovenia 19University of California, Los Angeles, California 90024, USA 20Lehrstuhl für Informatik V, Universität Mannheim, D-68131 Mannheim, Germany 21University of Maribor, 2000 Maribor, Slovenia 22Institute of Theoretical and Experimental Physics, 117259 Moscow, Russia 23Max-Planck-Institut für Physik, Werner-Heisenberg-Institut, D-80805 München, Germany 24Department of Physics, University of Oslo, N-0316 Oslo, Norway 25Fachbereich Physik, Universität Rostock, D-18051 Rostock, Germany 26Fachbereich Physik, Universität Siegen, D-57068 Siegen, Germany 27Institute for Nuclear Research, INRNE-BAS, Sofia, Bulgaria 28Universiteit Utrecht/NIKHEF, 3584 CB Utrecht, The Netherlands 29DESY, D-15738 Zeuthen, Germany 30Physik-Institut, Universität Zürich, CH-8057 Zürich, Switzerland 31visitor from Dipartimento di Energetica dell' Università di Firenze and INFN Sezione di Bologna, Italy 32visitor from P. N. Lebedev Physical Institute, 117924 Moscow B-333, Russia 33visitor from Moscow Physical Engineering Institute, 115409 Moscow, Russia 34visitor from Moscow State University, 119899 Moscow, Russia 35visitor from Institute for High Energy Physics, Protvino, Russia 36visitor from High Energy Physics Institute, 380086 Tbilisi, Georgia, ou_persistent22
2Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550

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Abstract: A new measurement of the b[overline b] production cross section in 920 GeV proton-nucleus collisions is presented by the HERA-B Collaboration. The b[overline b] production is tagged via inclusive bottom quark decays into J/psi mesons by exploiting the longitudinal separation of J/psi-->l+l- decay vertices from the primary proton-nucleus interaction point. Both e+e- and µ+µ- channels are reconstructed for a total of 83±12 inclusive b-->J/psiX events found. The combined analysis yields a b[overline b] to prompt J/psi cross section ratio of ((Delta sigma(b[overline b]))/(Delta sigma[sub J/psi]))=0.032±0.005stat±0.004sys measured in the xF acceptance (-0.35<xF<0.15), extrapolated to nb/sigma(b[overline b])=14.9±2.2stat±2.4sys nucleon in the total phase space.

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Language(s): eng - English

Dates: Date issued: 2006-03-10

Publication Status: Issued

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Rev. Type: Peer

Identifiers: eDoc: 284840
DOI: 10.1103/PhysRevD.73.052005
URI: http://link.aps.org/abstract/PRD/v73/e052005

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Title: Physical Review D

Alternative Title : Phys. Rev. D.

Source Genre: Journal

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Pages: - Volume / Issue: 73 (5-6) Sequence Number: 052005 Start / End Page: 1 - 17 Identifier: -