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Measurement of D production in deep inelastic scattering at HERA

  • The ZEUS collaboration
  • H. Abramowicz
  • I. Abt
  • L. Adamczyk
  • M. Adamus
  • R. Aggarwal
  • S. Antonelli
  • P. Antonioli
  • A. Antonov
  • M. Arneodo
  • O. Arslan
  • V. Aushev
  • Y. Aushev
  • O. Bachynska
  • A. Bamberger
  • A. N. Barakbaev
  • G. Barbagli
  • G. Bari
  • F. Barreiro
  • N. Bartosik
  • D. Bartsch
  • M. Basile
  • O. Behnke
  • J. Behr
  • U. Behrens
  • L. Bellagamba
  • A. Bertolin
  • S. Bhadra
  • M. Bindi
  • C. Blohm
  • V. Bokhonov
  • T. Bold
  • E. G. Boos
  • K. Borras
  • D. Boscherini
  • D. Bot
  • I. Brock
  • E. Brownson
  • R. Brugnera
  • N. Brümmer
  • A. Bruni
  • G. Bruni
  • B. Brzozowska
  • P. J. Bussey
  • B. Bylsma
  • A. Caldwell
  • M. Capua
  • R. Carlin
  • C. D. Catterall
  • S. Chekanov
  • J. Chwastowski
  • J. Ciborowski
  • R. Ciesielski
  • L. Cifarelli
  • F. Cindolo
  • A. Contin
  • A. M. Cooper-Sarkar
  • N. Coppola
  • M. Corradi
  • F. Corriveau
  • M. Costa
  • G. D’Agostini
  • F. Dal Corso
  • J. del Peso
  • R. K. Dementiev
  • S. De Pasquale
  • M. Derrick
  • R. C. E. Devenish
  • D. Dobur
  • B. A. Dolgoshein
  • G. Dolinska
  • A. T. Doyle
  • V. Drugakov
  • L. S. Durkin
  • S. Dusini
  • Y. Eisenberg
  • P. F. Ermolov
  • A. Eskreys
  • S. Fang
  • S. Fazio
  • J. Ferrando
  • M. I. Ferrero
  • J. Figiel
  • B. Foster
  • G. Gach
  • A. Galas
  • E. Gallo
  • A. Garfagnini
  • A. Geiser
  • I. Gialas
  • A. Gizhko
  • L. K. Gladilin
  • D. Gladkov
  • C. Glasman
  • O. Gogota
  • Yu. A. Golubkov
  • P. Göttlicher
  • I. Grabowska-Bold
  • J. Grebenyuk
  • I. Gregor
  • G. Grigorescu
  • G. Grzelak
  • O. Gueta
  • M. Guzik
  • C. Gwenlan
  • T. Haas
  • W. Hain
  • R. Hamatsu
  • J. C. Hart
  • H. Hartmann
  • G. Hartner
  • E. Hilger
  • D. Hochman
  • R. Hori
  • A. Hüttmann
  • Z. A. Ibrahim
  • Y. Iga
  • R. Ingbir
  • M. Ishitsuka
  • A. Iudin
  • H.-P. Jakob
  • F. Januschek
  • T. W. Jones
  • M. Jüngst
  • I. Kadenko
  • B. Kahle
  • S. Kananov
  • T. Kanno
  • U. Karshon
  • F. Karstens
  • I. I. Katkov
  • M. Kaur
  • P. Kaur
  • A. Keramidas
  • L. A. Khein
  • J. Y. Kim
  • D. Kisielewska
  • S. Kitamura
  • R. Klanner
  • U. Klein
  • E. Koffeman
  • N. Kondrashova
  • O. Kononenko
  • P. Kooijman
  • Ie. Korol
  • I. A. Korzhavina
  • A. Kotanski
  • U. Kötz
  • N. Kovalchuk
  • H. Kowalski
  • O. Kuprash
  • M. Kuze
  • A. Lee
  • B. B. Levchenko
  • A. Levy
  • V. Libov
  • S. Limentani
  • T. Y. Ling
  • M. Lisovyi
  • E. Lobodzinska
  • W. Lohmann
  • B. Löhr
  • E. Lohrmann
  • K. R. Long
  • A. Longhin
  • D. Lontkovskyi
  • O. Yu. Lukina
  • J. Maeda
  • S. Magill
  • I. Makarenko
  • J. Malka
  • R. Mankel
  • A. Margotti
  • G. Marini
  • J. F. Martin
  • A. Mastroberardino
  • M. C. K. Mattingly
  • I.-A. Melzer-Pellmann
  • S. Mergelmeyer
  • S. Miglioranzi
  • F. Mohamad Idris
  • V. Monaco
  • A. Montanari
  • J. D. Morris
  • K. Mujkic
  • B. Musgrave
  • K. Nagano
  • T. Namsoo
  • R. Nania
  • A. Nigro
  • Y. Ning
  • T. Nobe
  • D. Notz
  • R. J. Nowak
  • A. E. Nuncio-Quiroz
  • B. Y. Oh
  • N. Okazaki
  • K. Olkiewicz
  • Yu. Onishchuk
  • K. Papageorgiu
  • A. Parenti
  • E. Paul
  • J. M. Pawlak
  • B. Pawlik
  • P. G. Pelfer
  • A. Pellegrino
  • W. Perlanski
  • H. Perrey
  • K. Piotrzkowski
  • P. Plucinski
  • N. S. Pokrovskiy
  • A. Polini
  • A. S. Proskuryakov
  • M. Przybycien
  • A. Raval
  • D. D. Reeder
  • B. Reisert
  • Z. Ren
  • J. Repond
  • Y. D. Ri
  • A. Robertson
  • P. Roloff
  • I. Rubinsky
  • M. Ruspa
  • R. Sacchi
  • U. Samson
  • G. Sartorelli
  • A. A. Savin
  • D. H. Saxon
  • M. Schioppa
  • S. Schlenstedt
  • P. Schleper
  • W. B. Schmidke
  • U. Schneekloth
  • V. Schönberg
  • T. Schörner-Sadenius
  • J. Schwartz
  • F. Sciulli
  • L. M. Shcheglova
  • R. Shehzadi
  • S. Shimizu
  • I. Singh
  • I. O. Skillicorn
  • W. Slominski
  • W. H. Smith
  • V. Sola
  • A. Solano
  • D. Son
  • V. Sosnovtsev
  • A. Spiridonov
  • H. Stadie
  • L. Stanco
  • N. Stefaniuk
  • A. Stern
  • T. P. Stewart
  • A. Stifutkin
  • P. Stopa
  • S. Suchkov
  • G. Susinno
  • L. Suszycki
  • J. Sztuk-Dambietz
  • D. Szuba
  • J. Szuba
  • A. D. Tapper
  • E. Tassi
  • J. Terrón
  • T. Theedt
  • H. Tiecke
  • K. Tokushuku
  • J. Tomaszewska
  • A. Trofymov
  • V. Trusov
  • T. Tsurugai
  • M. Turcato
  • O. Turkot
  • T. Tymieniecka
  • M. Vázquez
  • A. Verbytskyi
  • O. Viazlo
  • N. N. Vlasov
  • R. Walczak
  • W. A. T. Wan Abdullah
  • J. J. Whitmore
  • K. Wichmann
  • L. Wiggers
  • M. Wing
  • M. Wlasenko
  • G. Wolf
  • H. Wolfe
  • K. Wrona
  • A. G. Yagües-Molina
  • S. Yamada
  • Y. Yamazaki
  • R. Yoshida
  • C. Youngman
  • N. Zakharchuk
  • A. F. Żarnecki
  • L. Zawiejski
  • O. Zenaiev
  • W. Zeuner
  • B. O. Zhautykov
  • N. Zhmak
  • A. Zichichi
  • Z. Zolkapli
  • D. S. Zotkin
Open Access
Article

Abstract

The production of D mesons in deep inelastic ep scattering has been measured for exchanged photon virtualities 5 < Q 2 < 1000 GeV2, using an integrated luminosity of 363 pb−1 with the ZEUS detector at HERA. Differential cross sections have been measured and compared to next-to-leading-order QCD calculations. The cross-sections are used to extract the charm contribution to the proton structure functions, expressed in terms of the reduced charm cross section, \( \sigma_{\mathrm{red}}^{{c\overline{c}}} \). Theoretical calculations based on fits to inclusive HERA data are compared to the results.

Keywords

Lepton-Nucleon Scattering Charm physics 

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Copyright information

© SISSA 2013

Authors and Affiliations

  • The ZEUS collaboration
  • H. Abramowicz
    • 45
  • I. Abt
    • 35
  • L. Adamczyk
    • 13
  • M. Adamus
    • 54
  • R. Aggarwal
    • 7
  • S. Antonelli
    • 4
  • P. Antonioli
    • 3
  • A. Antonov
    • 33
  • M. Arneodo
    • 50
  • O. Arslan
    • 5
  • V. Aushev
    • 26
    • 27
  • Y. Aushev
    • 27
  • O. Bachynska
    • 15
  • A. Bamberger
    • 19
  • A. N. Barakbaev
    • 25
  • G. Barbagli
    • 17
  • G. Bari
    • 3
  • F. Barreiro
    • 30
  • N. Bartosik
    • 15
  • D. Bartsch
    • 5
  • M. Basile
    • 4
  • O. Behnke
    • 15
  • J. Behr
    • 15
  • U. Behrens
    • 15
  • L. Bellagamba
    • 3
  • A. Bertolin
    • 39
  • S. Bhadra
    • 57
  • M. Bindi
    • 4
  • C. Blohm
    • 15
  • V. Bokhonov
    • 26
  • T. Bold
    • 13
  • E. G. Boos
    • 25
  • K. Borras
    • 15
  • D. Boscherini
    • 3
  • D. Bot
    • 15
  • I. Brock
    • 5
  • E. Brownson
    • 56
  • R. Brugnera
    • 40
  • N. Brümmer
    • 37
  • A. Bruni
    • 3
  • G. Bruni
    • 3
  • B. Brzozowska
    • 53
  • P. J. Bussey
    • 20
  • B. Bylsma
    • 37
  • A. Caldwell
    • 35
  • M. Capua
    • 8
  • R. Carlin
    • 40
  • C. D. Catterall
    • 57
  • S. Chekanov
    • 1
  • J. Chwastowski
    • 12
    • 60
  • J. Ciborowski
    • 53
    • 81
  • R. Ciesielski
    • 15
    • 61
  • L. Cifarelli
    • 4
  • F. Cindolo
    • 3
  • A. Contin
    • 4
  • A. M. Cooper-Sarkar
    • 38
  • N. Coppola
    • 15
  • M. Corradi
    • 3
  • F. Corriveau
    • 31
  • M. Costa
    • 49
  • G. D’Agostini
    • 43
  • F. Dal Corso
    • 39
  • J. del Peso
    • 30
  • R. K. Dementiev
    • 34
  • S. De Pasquale
    • 4
    • 58
  • M. Derrick
    • 1
  • R. C. E. Devenish
    • 38
  • D. Dobur
    • 19
    • 71
  • B. A. Dolgoshein
    • 33
  • G. Dolinska
    • 15
  • A. T. Doyle
    • 20
  • V. Drugakov
    • 16
  • L. S. Durkin
    • 37
  • S. Dusini
    • 39
  • Y. Eisenberg
    • 55
  • P. F. Ermolov
    • 34
  • A. Eskreys
    • 12
  • S. Fang
    • 15
    • 62
  • S. Fazio
    • 8
  • J. Ferrando
    • 20
  • M. I. Ferrero
    • 49
  • J. Figiel
    • 12
  • B. Foster
    • 38
  • G. Gach
    • 13
  • A. Galas
    • 12
  • E. Gallo
    • 17
  • A. Garfagnini
    • 40
  • A. Geiser
    • 15
  • I. Gialas
    • 21
    • 74
  • A. Gizhko
    • 15
  • L. K. Gladilin
    • 34
  • D. Gladkov
    • 33
  • C. Glasman
    • 30
  • O. Gogota
    • 27
  • Yu. A. Golubkov
    • 34
  • P. Göttlicher
    • 15
    • 63
  • I. Grabowska-Bold
    • 13
  • J. Grebenyuk
    • 15
  • I. Gregor
    • 15
  • G. Grigorescu
    • 36
  • G. Grzelak
    • 53
  • O. Gueta
    • 45
  • M. Guzik
    • 13
  • C. Gwenlan
    • 38
  • T. Haas
    • 15
  • W. Hain
    • 15
  • R. Hamatsu
    • 48
  • J. C. Hart
    • 44
  • H. Hartmann
    • 5
  • G. Hartner
    • 57
  • E. Hilger
    • 5
  • D. Hochman
    • 55
  • R. Hori
    • 47
  • A. Hüttmann
    • 15
  • Z. A. Ibrahim
    • 10
  • Y. Iga
    • 42
  • R. Ingbir
    • 45
  • M. Ishitsuka
    • 46
  • A. Iudin
    • 27
  • H.-P. Jakob
    • 5
  • F. Januschek
    • 15
  • T. W. Jones
    • 52
  • M. Jüngst
    • 5
  • I. Kadenko
    • 27
  • B. Kahle
    • 15
  • S. Kananov
    • 45
  • T. Kanno
    • 46
  • U. Karshon
    • 55
  • F. Karstens
    • 19
    • 72
  • I. I. Katkov
    • 15
    • 64
  • M. Kaur
    • 7
  • P. Kaur
    • 7
  • A. Keramidas
    • 36
  • L. A. Khein
    • 34
  • J. Y. Kim
    • 9
  • D. Kisielewska
    • 13
  • S. Kitamura
    • 48
    • 79
  • R. Klanner
    • 22
  • U. Klein
    • 15
    • 65
  • E. Koffeman
    • 36
  • N. Kondrashova
    • 27
  • O. Kononenko
    • 27
  • P. Kooijman
    • 36
  • Ie. Korol
    • 15
  • I. A. Korzhavina
    • 34
  • A. Kotanski
    • 14
  • U. Kötz
    • 15
  • N. Kovalchuk
    • 27
  • H. Kowalski
    • 15
  • O. Kuprash
    • 15
  • M. Kuze
    • 46
  • A. Lee
    • 37
  • B. B. Levchenko
    • 34
  • A. Levy
    • 45
  • V. Libov
    • 15
  • S. Limentani
    • 40
  • T. Y. Ling
    • 37
  • M. Lisovyi
    • 15
  • E. Lobodzinska
    • 15
  • W. Lohmann
    • 16
  • B. Löhr
    • 15
  • E. Lohrmann
    • 22
  • K. R. Long
    • 23
  • A. Longhin
    • 39
    • 77
  • D. Lontkovskyi
    • 15
  • O. Yu. Lukina
    • 34
  • J. Maeda
    • 46
    • 78
  • S. Magill
    • 1
  • I. Makarenko
    • 15
  • J. Malka
    • 15
  • R. Mankel
    • 15
  • A. Margotti
    • 3
  • G. Marini
    • 43
  • J. F. Martin
    • 51
  • A. Mastroberardino
    • 8
  • M. C. K. Mattingly
    • 2
  • I.-A. Melzer-Pellmann
    • 15
  • S. Mergelmeyer
    • 5
  • S. Miglioranzi
    • 15
    • 66
  • F. Mohamad Idris
    • 10
  • V. Monaco
    • 49
  • A. Montanari
    • 15
  • J. D. Morris
    • 6
    • 59
  • K. Mujkic
    • 15
    • 67
  • B. Musgrave
    • 1
  • K. Nagano
    • 24
  • T. Namsoo
    • 15
    • 68
  • R. Nania
    • 3
  • A. Nigro
    • 43
  • Y. Ning
    • 11
  • T. Nobe
    • 46
  • D. Notz
    • 15
  • R. J. Nowak
    • 53
  • A. E. Nuncio-Quiroz
    • 5
  • B. Y. Oh
    • 41
  • N. Okazaki
    • 47
  • K. Olkiewicz
    • 12
  • Yu. Onishchuk
    • 27
  • K. Papageorgiu
    • 21
  • A. Parenti
    • 15
  • E. Paul
    • 5
  • J. M. Pawlak
    • 53
  • B. Pawlik
    • 12
  • P. G. Pelfer
    • 18
  • A. Pellegrino
    • 36
  • W. Perlanski
    • 53
  • H. Perrey
    • 15
  • K. Piotrzkowski
    • 29
  • P. Plucinski
    • 54
    • 82
  • N. S. Pokrovskiy
    • 25
  • A. Polini
    • 3
  • A. S. Proskuryakov
    • 34
  • M. Przybycien
    • 13
  • A. Raval
    • 15
  • D. D. Reeder
    • 56
  • B. Reisert
    • 35
  • Z. Ren
    • 11
  • J. Repond
    • 1
  • Y. D. Ri
    • 48
    • 80
  • A. Robertson
    • 38
  • P. Roloff
    • 15
    • 66
  • I. Rubinsky
    • 15
  • M. Ruspa
    • 50
  • R. Sacchi
    • 49
  • U. Samson
    • 5
  • G. Sartorelli
    • 4
  • A. A. Savin
    • 56
  • D. H. Saxon
    • 20
  • M. Schioppa
    • 8
  • S. Schlenstedt
    • 16
  • P. Schleper
    • 22
  • W. B. Schmidke
    • 35
  • U. Schneekloth
    • 15
  • V. Schönberg
    • 5
  • T. Schörner-Sadenius
    • 15
  • J. Schwartz
    • 31
  • F. Sciulli
    • 11
  • L. M. Shcheglova
    • 34
  • R. Shehzadi
    • 5
  • S. Shimizu
    • 47
    • 66
  • I. Singh
    • 7
  • I. O. Skillicorn
    • 20
  • W. Slominski
    • 14
  • W. H. Smith
    • 56
  • V. Sola
    • 22
  • A. Solano
    • 49
  • D. Son
    • 28
  • V. Sosnovtsev
    • 33
  • A. Spiridonov
    • 15
    • 69
  • H. Stadie
    • 22
  • L. Stanco
    • 39
  • N. Stefaniuk
    • 27
  • A. Stern
    • 45
  • T. P. Stewart
    • 51
  • A. Stifutkin
    • 33
  • P. Stopa
    • 12
  • S. Suchkov
    • 33
  • G. Susinno
    • 8
  • L. Suszycki
    • 13
  • J. Sztuk-Dambietz
    • 22
  • D. Szuba
    • 22
  • J. Szuba
    • 15
    • 70
  • A. D. Tapper
    • 23
  • E. Tassi
    • 8
  • J. Terrón
    • 30
  • T. Theedt
    • 15
  • H. Tiecke
    • 36
  • K. Tokushuku
    • 24
    • 75
  • J. Tomaszewska
    • 15
  • A. Trofymov
    • 27
  • V. Trusov
    • 27
  • T. Tsurugai
    • 32
  • M. Turcato
    • 22
  • O. Turkot
    • 27
  • T. Tymieniecka
    • 54
  • M. Vázquez
    • 36
    • 66
  • A. Verbytskyi
    • 15
  • O. Viazlo
    • 27
  • N. N. Vlasov
    • 19
    • 73
  • R. Walczak
    • 38
  • W. A. T. Wan Abdullah
    • 10
  • J. J. Whitmore
    • 41
  • K. Wichmann
    • 15
  • L. Wiggers
    • 36
  • M. Wing
    • 52
  • M. Wlasenko
    • 5
  • G. Wolf
    • 15
  • H. Wolfe
    • 56
  • K. Wrona
    • 15
  • A. G. Yagües-Molina
    • 15
  • S. Yamada
    • 24
  • Y. Yamazaki
    • 24
    • 76
  • R. Yoshida
    • 1
  • C. Youngman
    • 15
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    • 27
  • A. F. Żarnecki
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  • L. Zawiejski
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  • B. O. Zhautykov
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  • N. Zhmak
    • 26
  • A. Zichichi
    • 4
  • Z. Zolkapli
    • 10
  • D. S. Zotkin
    • 34
  1. 1.Argonne National LaboratoryArgonneUSA
  2. 2.Andrews UniversityBerrien SpringsUSA
  3. 3.INFN BolognaBolognaItaly
  4. 4.University and INFN BolognaBolognaItaly
  5. 5.Physikalisches Institut der Universität BonnBonnGermany
  6. 6.H.H. Wills Physics LaboratoryUniversity of BristolBristolUnited Kingdom
  7. 7.Panjab University, Department of PhysicsChandigarhIndia
  8. 8.Calabria University, Physics Department and INFNCosenzaItaly
  9. 9.Institute for Universe and Elementary ParticlesChonnam National UniversityKwangjuSouth Korea
  10. 10.Jabatan FizikUniversiti MalayaKuala LumpurMalaysia
  11. 11.Nevis Laboratories, Columbia UniversityIrvington on HudsonUSA
  12. 12.The Henryk Niewodniczanski Institute of Nuclear PhysicsPolish Academy of SciencesKrakowPoland
  13. 13.AGH-University of Science and Technology, Faculty of Physics and Applied Computer ScienceKrakowPoland
  14. 14.Department of PhysicsJagellonian UniversityCracowPoland
  15. 15.Deutsches Elektronen-Synchrotron DESYHamburgGermany
  16. 16.Deutsches Elektronen-Synchrotron DESYZeuthenGermany
  17. 17.INFN FlorenceFlorenceItaly
  18. 18.University and INFN FlorenceFlorenceItaly
  19. 19.Fakultät für Physik der Universität Freiburg i.Br.Freiburg i.Br.Germany
  20. 20.School of Physics and AstronomyUniversity of GlasgowGlasgowUnited Kingdom
  21. 21.Department of Engineering in Management and FinanceUniv. of the AegeanChiosGreece
  22. 22.Hamburg University, Institute of Experimental PhysicsHamburgGermany
  23. 23.Imperial College London, High Energy Nuclear Physics GroupLondonUnited Kingdom
  24. 24.Institute of Particle and Nuclear Studies, KEKTsukubaJapan
  25. 25.Institute of Physics and Technology of Ministry of Education and Science of KazakhstanAlmatyKazakhstan
  26. 26.Institute for Nuclear ResearchNational Academy of SciencesKyivUkraine
  27. 27.Department of Nuclear PhysicsNational Taras Shevchenko University of KyivKyivUkraine
  28. 28.Kyungpook National University, Center for High Energy PhysicsDaeguSouth Korea
  29. 29.Institut de Physique NucléaireUniversité Catholique de LouvainLouvain-la-NeuveBelgium
  30. 30.Departamento de Física TeóricaUniversidad Autónoma de MadridMadridSpain
  31. 31.Department of PhysicsMcGill UniversityMontréalCanada
  32. 32.Meiji Gakuin University, Faculty of General EducationYokohamaJapan
  33. 33.Moscow Engineering Physics InstituteMoscowRussia
  34. 34.Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear PhysicsMoscowRussia
  35. 35.Max-Planck-Institut für PhysikMünchenGermany
  36. 36.NIKHEF and University of AmsterdamAmsterdamNetherlands
  37. 37.Physics DepartmentOhio State UniversityColumbusUSA
  38. 38.Department of PhysicsUniversity of OxfordOxfordUnited Kingdom
  39. 39.INFN PadovaPadovaItaly
  40. 40.Dipartimento di Fisica dell’ Università and INFNPadovaItaly
  41. 41.Department of PhysicsPennsylvania State UniversityUniversity ParkUSA
  42. 42.Polytechnic UniversityTokyoJapan
  43. 43.Dipartimento di Fisica, Università ’La Sapienza’ and INFNRomeItaly
  44. 44.Rutherford Appleton LaboratoryDidcotUnited Kingdom
  45. 45.Raymond and Beverly Sackler Faculty of Exact Sciences, School of PhysicsTel Aviv UniversityTel AvivIsrael
  46. 46.Department of PhysicsTokyo Institute of TechnologyTokyoJapan
  47. 47.Department of PhysicsUniversity of TokyoTokyoJapan
  48. 48.Tokyo Metropolitan University, Department of PhysicsTokyoJapan
  49. 49.Università di Torino and INFNTorinoItaly
  50. 50.Università del Piemonte Orientale, Novara, and INFNTorinoItaly
  51. 51.Department of PhysicsUniversity of TorontoTorontoCanada
  52. 52.Physics and Astronomy DepartmentUniversity College LondonLondonUnited Kingdom
  53. 53.Faculty of PhysicsUniversity of WarsawWarsawPoland
  54. 54.National Centre for Nuclear ResearchWarsawPoland
  55. 55.Department of Particle Physics and AstrophysicsWeizmann InstituteRehovotIsrael
  56. 56.Department of PhysicsUniversity of WisconsinMadisonUSA
  57. 57.Department of PhysicsYork UniversityOntarioCanada
  58. 58.University of SalernoSalernoItaly
  59. 59.Queen Mary University of LondonLondonUnited Kingdom
  60. 60.Cracow University of Technology, Faculty of Physics, Mathematics and Applied Computer ScienceKracowPoland
  61. 61.Rockefeller UniversityNew YorkUSA
  62. 62.Institute of High Energy PhysicsBeijingChina
  63. 63.DESY group FEBHamburgGermany
  64. 64.Moscow State UniversityMoscowRussia
  65. 65.University of LiverpoolLiverpoolUnited Kingdom
  66. 66.CERNGenevaSwitzerland
  67. 67.University College LondonLondonUK
  68. 68.Goldman SachsLondonUK
  69. 69.Institute of Theoretical and Experimental PhysicsMoscowRussia
  70. 70.FPACS, AGH-USTCracowPoland
  71. 71.Istituto Nazionale di Fisica Nucleare (INFN)PisaItaly
  72. 72.Haase Energie Technik AGNeumünsterGermany
  73. 73.Department of PhysicsUniversity of BonnBonnGermany
  74. 74.DESYHamburgGermany
  75. 75.University of TokyoTokyoJapan
  76. 76.Kobe UniversityKobeJapan
  77. 77.LNFFrascatiItaly
  78. 78.Tokyo Metropolitan UniversityTokyoJapan
  79. 79.Nihon Institute of Medical ScienceSaitamaJapan
  80. 80.Osaka UniversityOsakaJapan
  81. 81.Lódz UniversityLódzPoland
  82. 82.Department of PhysicsStockholm UniversityStockholmSweden

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