Measurement of high-Q2 neutral current deep inelastic e+p scattering cross sections with a longitudinally polarized positron beam at HERA
Entity
UAM. Departamento de Física TeóricaPublisher
American Physical SocietyDate
2013-03-20Citation
10.1103/PhysRevD.87.052014
Physical Review D - Particles, Fields, Gravitation and Cosmology 87.5 (2013): 052014
ISSN
1550-2368 (online); 1550-7998 (print)DOI
10.1103/PhysRevD.87.052014Funded by
Support was provided by the following: U.S. Department of Energy; Italian National Institute for Nuclear Physics (INFN); German Federal Ministry for Education and Research (BMBF) under Contract No. 05 H09PDF; the Science and Technology Facilities Council, UK; a F. R. S. grant from the Malaysian government; the U.S. National Science Foundation (any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation); the Polish Ministry of Science and Higher Education as a scientific Project No. DPN/N188/DESY/2009; the Polish Ministry of Science and Higher Education and its grants for scientific research; the German Federal Ministry for Education and Research (BMBF) under Contract No. 05h09GUF, and the SFB 676 of the Deutsche Forschungsgemeinschaft (DFG); the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and its grants for scientific research; the Korean Ministry of Education and Korea Science and Engineering Foundation; the FNRS and its associated funds (IISN and FRIA) and by an Inter-University Attraction Poles Programme subsidized by the Belgian Federal Science Policy Office; the Spanish Ministry of Education and Science through funds provided by CICYT; the Natural Sciences and Engineering Research Council of Canada (NSERC); the German Federal Ministry for Education and Research (BMBF); R. F. Presidential Grant No. N 4142.2010.2 for Leading Scientific Schools, by the Russian Ministry of Education and Science through its grant for Scientific Research on High Energy Physics and under Contract No. 02.740.11.0244; the Netherlands Foundation for Research on Matter (FOM); the Israel Science Foundation, Max Planck Institute for Physics, Munich, Germany; the Polish National Science Centre, Project No. DEC-2011/01/BST2/03643; Warsaw University, Poland; DESY, Germany; and Russian Foundation for Basic Research, Grant No. 11-02-91345-DFG_aEditor's Version
http://dx.doi.org/10.1103/PhysRevD.87.052014Subjects
FísicaNote
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMRights
© 2013 American Physical SocietyAbstract
Measurements of neutral current cross sections for deep inelastic scattering in e+p collisions at HERA with a longitudinally polarized positron beam are presented. The single-differential cross-sections dσ/dQ2, dσ/dx and dσ/dy and the reduced cross section σ are measured in the kinematic region Q2>185 GeV2 and y<0.9, where Q2 is the four-momentum transfer squared, x the Bjorken scaling variable and y the inelasticity of the interaction. The measurements are performed separately for positively and negatively polarized positron beams. The measurements are based on an integrated luminosity of 135.5 pb-1 collected with the ZEUS detector in 2006 and 2007 at a center-of-mass energy of 318 GeV. The structure functions F3 and F3γZ are determined by combining the e+p results presented in this paper with previously published e-p neutral current results. The asymmetry parameter A+ is used to demonstrate the parity violation predicted in electroweak interactions. The measurements are well described by the predictions of the Standard Model
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Google Scholar:Abramowicz, Halina
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Barreiro Alonso, Fernando
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Peso Malagón, José del
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Glasman Kuguel, Claudia Beatriz
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Terrón Cuadrado, Juan
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ZEUS Collaboration
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2013-05-20