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Measurement of the bb̄ production cross section in 920 GeV fixed-target proton-nucleus collisions: The HERA - B collaboration

  • I. Abt
  • , A. Abyzov
  • , M. Adams
  • , H. Albrecht
  • , V. Amaral
  • , A. Amorim
  • , S. J. Aplin
  • , A. Arefiev
  • , I. Ariño
  • , M. Atiya
  • , V. Aushev
  • , Y. Bagaturia
  • , R. Baghshetsyan
  • , V. Balagura
  • , M. Bargiotti
  • , S. Barsuk
  • , O. Barsukova
  • , V. Bassetti
  • , J. Bastos
  • , C. Bauer
  • T. S. Bauer, M. Beck, A. Belkov, A. Belkov, I. Belotelov, I. Belyaev, K. Berkhan, A. Bertin, B. Bobchenko, M. Böcker, A. Bogatyrev, G. Bohm, C. Borgmeier, M. Bräuer, D. Broemmelsiek, M. Bruinsma, M. Bruschi, P. Buchholz, M. Buchler, T. Buran, M. Capeáns, M. Capponi, J. Carvalho, J. Chamanina, B. X. Chen, R. Chistov, M. Chmeissani, A. Christensen, P. Conde, C. Cruse, M. Dam, K. M. Danielsen, M. Danilov, S. de Castro, H. Deckers, K. Dehmelt, H. Deppe, B. Dolgoshein, X. Dong, H. B. Dreis, M. Dressel, D. Dujmic, R. Eckmann, V. Egorytchev, K. Ehret, V. Eiges, F. Eisele, D. Emeliyanov, S. Erhan, S. Essenov, L. Fabbri, P. Faccioli, W. Fallot-Burghardt, M. Feuerstack-Raible, J. Flammer, H. Fleckenstein, B. Fominykh, S. Fourletov, T. Fuljahn, M. Funcke, D. Galli, A. Garcia, L. Garrido, D. Gascon, A. Gellrich, K. E.K. Gerndt, B. Giacobbe, J. Gläß, T. Glebe, D. Goloubkov, A. Golutvin, I. Golutvin, I. Gorbounov, A. Gorišek, O. Gouchtchine, D. C. Goulart, S. Gradl, W. Gradl, Y. Guilitsky, T. Hamacher, J. D. Hansen, R. Harr, C. Hast, S. Hausmann, J. M. Hernández, M. Hildebrandt, A. Hölscher, K. Höpfner, W. Hofmann, M. Hohlmann, T. Hott, W. Hulsbergen, U. Husemann, O. Igonkina, M. Ispiryan, S. Issever, H. Itterbeck, J. Ivarsson, T. Jagla, Y. Jia, C. Jiang, A. Kaoukher, H. Kapitza, S. Karabekyan, P. Karchin, N. Karpenko, Z. Ke, S. Keller, F. Khasanov, H. Kim, Y. Kiryushin, I. Kisel, F. Klefenz, K. T. Knöpfle, V. Kochetkov, H. Kolanoski, S. Korpar, C. Krauss, P. Kreuzer, P. Križan, D. Krücker, T. Kvaratskheliia, A. Lange, A. Lanyov, K. Lau, G. Leffers, I. Legrand, B. Lewendel, Y. Q. Liu, T. Lohse, R. Loke, B. Lomonosov, J. Lüdemann, R. Männer, R. Mankel, U. Marconi, S. Masciocchi, I. Massa, I. Matchikhilian, G. Medin, M. Medinnis, M. Mevius, A. Michetti, Yu Mikhailov, R. Miquel, R. Mizuk, A. Mohapatra, A. Moshkin, B. Moshous, R. Muresan, S. Nam, M. Negodaev, I. Négri, M. Nörenberg, S. Nowak, M. T. Núñez Pardo de Vera, T. Oest, A. Oliveira, M. Ouchrif, F. Ould-Saada, C. Padilla, P. Pakhlov, Y. Pavlenko, D. Peralta, R. Pernack, T. Perschke, R. Pestotnik, B. AA Petersen, M. Piccinini, M. A. Pleier, M. Poli, V. Popov, A. Pose, D. Pose, V. Pugatch, Y. Pylypchenko, J. Pyrlik, S. Ramachandran, F. Ratnikov, K. Reeves, D. Reßing, K. Riechmann, J. Rieling, M. Rietz, I. Riu, P. Robmann, J. Rosen, Ch Rothe, W. Ruckstuhl, V. Rusinov, V. Rybnikov, D. Ryzhikov, F. Saadi-Lüdemann, D. Samtleben, F. Sanchez, M. Sang, V. Saveliev, A. Sbrizzi, S. Schaller, P. Schlein, M. Schmelling, B. Schmidt, S. Schmidt, W. Schmidt-Parzefall, A. Schreiner, H. Schröder, H. D. Schultz, U. Schwanke, A. J. Schwartz, A. S. Schwarz, B. Schwenninger, B. Schwingenheuer, R. Schwitters, F. Sciacca, S. Semenov, N. Semprini-Cesari, E. Sexauer, L. Seybold, J. Shiu, S. Shuvalov, I. Siccama, D. Škrk, L. Sözüer, A. Soldatov, S. Solunin, A. Somov, S. Somov, V. Souvorov, M. Spahn, J. Spengler, R. Spighi, A. Spiridonov, S. Spratte, A. Stanovnik, M. Starič, R. StDenis, C. Stegmann, S. Steinbeck, O. Steinkamp, D. Stieler, U. Straumann, F. Sun, H. Sun, M. Symalla, S. Takach, N. Tesch, H. Thurn, I. Tikhomirov, M. Titov, U. Trunk, P. Truöl, I. Tsakov, U. Uwer, V. Vagnoni, C. van Eldik, R. van Staa, Yu Vassiliev, M. Villa, A. Vitale, I. Vukotic, G. Wagner, W. Wagner, H. Wahlberg, A. H. Walenta, M. Walter, T. Walter, J. J. Wang, Y. M. Wang, R. Wanke, D. Wegener, U. Werthenbach, P. J. Weyers, H. Wolters, R. Wurth, A. Wurz, S. Xella-Hansen, J. Yang, Y. Zaitsev, M. Zavertyaev, G. Zech, T. Zeuner, A. Zhelezov, Z. Zheng, Z. Zhu, R. Zimmermann, T. Živko, A. Zoccoli, J. Zweizig
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • Joint Institute for Nuclear Research
  • TU Dortmund University
  • German Electron Synchrotron
  • LIP Coim bra and Lisboa
  • Alikhanov Institute for Theoretical and Experimental Physics
  • University of Barcelona
  • Brookhaven National Laboratory
  • NASU - Institute of Nuclear Research
  • High Energy Physics Institute
  • A. Alikhanian Yerevan Institute of Physics
  • University of Bologna
  • Northwestern University
  • Max Planck Institute for Nuclear Physics
  • Utrecht University
  • National Institute for Subatomic Physics
  • University of Rostock
  • Humboldt University of Berlin
  • Wayne State University
  • University of Oslo
  • Moscow Engineering Physics Institute
  • Tsinghua University
  • University of Copenhagen
  • Heidelberg University 
  • CAS - Institute of High Energy Physics
  • University of Texas at Austin
  • University of California at Los Angeles
  • University of Mannheim
  • University of Siegen
  • Jožef Stefan Institute
  • University of Cincinnati
  • Institute for High Energy Physics
  • University of Houston
  • Lund University
  • University of Maribor
  • University of Ljubljana
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • University of Hamburg
  • University of Florence
  • University of Zurich
  • Bulgarian Academy of Sciences

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Using the HERA - B detector, the bb̄ production cross section has been measured in 920 GeV proton collisions on carbon and titanium targets. The bb̄ production was tagged via inclusive bottom quark decays into J/ψ by exploiting the longitudinal separation of J/ψ → l+l- decay vertices from the primary proton-nucleus interaction. Both e+e- and μ+μ- channels have been reconstructed and the combined analysis yields the cross section σ(bb̄) = 32-12+14 (stat)-7+6(sys) nb/nucleon.

Original languageEnglish
Pages (from-to)345-355
Number of pages11
JournalEuropean Physical Journal C
Volume26
Issue number3
DOIs
StatePublished - Jan 2003

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