Observation of scaling violations in scaled momentum distributions at HERA

J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, M. C.K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. BruniG. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. de Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, F. Palmonari, A. Pesci, A. Polini, F. Ricci, G. Sartorelli, Y. Zamora Garcia, A. Zichichi, C. Amelung, A. Bornheim, I. Brock, K. Coböken, J. Crittenden, R. Deffner, M. Eckert, M. Grothe, H. Hartmann, K. Heinloth, L. Heinz, E. Hilger, H. P. Jakob, U. F. Katz, R. Kerger, E. Paul, M. Pfeiffer, C. Rembser, J. Stamm, R. Wedemeyer, H. Wieber, D. S. Bailey, S. Campbell-Robson, W. N. Cottingham, B. Foster, R. Hall-Wilton, M. E. Hayes, G. P. Heath, H. F. Heath, J. D. McFall, D. Piccioni, D. G. Roff, R. J. Tapper, M. Arneodo, R. Ayad, M. Capua, A. Garfagnini, L. 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Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Charged particle production has been measured in deep inelastic scattering (DIS) events over a large range of x and Q2 using the ZEUS detector. The evolution of the scaled momentum, xp, with Q2, in the range 10 to 1280 GeV2, has been investigated in the current fragmentation region of the Breit frame. The results show clear evidence, in a single experiment, for scaling violations in scaled momenta as a function of Q2.

Original languageEnglish
Pages (from-to)428-443
Number of pages16
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume414
Issue number3-4
DOIs
Publication statusPublished - 1997 Nov 27

Bibliographical note

Funding Information:
‘* Visitor from Florida State University. 23N ow at ALCATEL Mobile Communication GmbH, Stuttgart. 24 Supportedb y European Community Program PRAXIS XXI. 25N ow at DESY-Group FDET. 26 Now at DESY Computer Center. *’ Visitor from Kyungpook National University, Taegu, Korea, partially supportedb y DESY. ** Now at Fermi National Accelerator Laboratory (FNAL), Batavia, IL, USA. 29N ow at NORCOM Infosystems, Hamburg. ” Now at Oxford University, supportedb y DAAD fellowship HSP II-AUFE 111. 31N ow at ATLAS Collaboration. Univ. of Munich. 32O n leave from MSU, supportedb y the GIF, contract I-0444-176.07/95. 33N ow a self-employedc onsultant.

Funding Information:
Supportedb y an EC fellowship. s5 PPARC Post-doctoral Fellow. 36N ow at Osaka Univ., Osaka, Japan. 37 Supportedb y JSPS Postdoctoral Fellowships for Research Abroad. 38 Supportedb y the Japanese Ministry of Education, Science and Culture (the Monbusho) and its grants for Scientific Research. 3g Now at Wayne State University, Detroit. 4o Partially supportedb y Comunidad Autonoma Madrid. 4’ Supportedb y the Spanish Ministry of Education and Science through funds provided by CICYT. 42 Supportedb y the Natural Sciences and Engineering Research Council of Canada (NSERC). 43 Supportedb y the FCAR of Qu&ec, Canada. 44 Partially supportedb y the German Federal Ministry for Education and Science, Research and Technology (BMBF).

Funding Information:
’ Supported by the US Department of Energy. ’ Also at IROE Florence, Italy. ’ Now at Univ. of Salerno and INFN Napoli, Italy. 4 Now at Univ. of Crete, Greece. 5 Supported by Worldlab, Lausanne, Switzerland. 6 Supported by the Italian National Institute for Nuclear Physics (INFN). ’ Now at CERN. * Retired. ’ Supported by the German Federal Ministry for Education and Science, Research and Technology 057BN19P. 057FR19P, 057HH19P. 057HH29P. 057SI751.

Funding Information:
43 Partially supportedb y the Foundation for German-Russian Collaboration DFG-RFBR (grant no. 436 RUS 113/24X/3 and no. 436 RUS 113/248/2X 46 Supportedb y the Fund for FundamentalR esearch of Russian Ministry for Science and Education and by the German Federal Ministry for Education and Science, Research and Technology (BMBF). 47 Supportedb y the NetherlandsF oundation for Research on Matter (FOM). 48 Now at Departmento f Energy, Washington. 49 Supportedb y the Feodor Lynen Program of the Alexander van Humboldt foundation. So Now at Lawrence Berkeley Laboratory, Berkeley, CA, USA.

Funding Information:
‘” Supportedb y the Particle Physics and Astronomy Research Council. ” Also at University of Torino and Alexander von Humboldt Fellow at DESY. I2 Now at Dongshin University, Naju, Korea. I3 Supported by the Korean Ministry of Education and Korea Science and Engineering Foundation. I4 Also at DESY. I5 Alfred P. Sloan Foundation Fellow. I6 Supportedb y the US National Science Foundation. ” Supportedb y the Polish State Committeef or Scientific Research, grant 115/E-343/SPUB/P03/002/97,2PO3B10512, 2PO3B14212.2 P03B10412. I8 Supportedb y the Polish State Committee for Scientific Research, grant No. 2P03B14912. I9 Supported by the Polish State Committee for Scientific Research (grant No. 2PO3B08308) and Foundation for Collaboration. *’ Supportedb y an EC fellowship number ERBFMBICT 950172. ” Now at SAP A.G.. Walldorf.

Funding Information:
” Supportedb y a MINERVA Fellowship. ‘* Supported by the German Israeli Foundation, and by the Israel Science Foundation. 53 Now at ICEPP, Univ. of Tokyo, Tokyo, Japan. 54P resent address:T okyo Metropolitan College of Allied Medical Sciences, Tokyo 116, Japan.

Funding Information:
55S upportebdy theP olish StateC ommittefeo r ScientificR esearch, grant No. 2P03B09308. 56 Supportedb y the Polish State Committee for Scientific Research, grant No. 2P03B09208. 57 Supportedb y the MINERVA Gesellschaft fti Forschung GmbH, the German Israeli Foundation, and the US-Israel Binational Science Foundation.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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