Abstract
A measurement is presented of single- and double-differential dijet cross sections in diffractive deep-inelastic ep scattering at HERA using data collected by the H1 experiment corresponding to an integrated luminosity of 290 pb−1. The investigated phase space is spanned by the photon virtuality in the range of 4 < Q 2 < 100 GeV2 and by the fractional proton longitudinal momentum loss x ℙ < 0.03. The resulting cross sections are compared with next-to-leading order QCD predictions based on diffractive parton distribution functions and the value of the strong coupling constant is extracted.
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ArXiv ePrint: 1412.0928v2
School of Physics and Astronomy, University of Birmingham, Birmingham, U.K. was supported by the U.K. Science and Technology Facilities Council, and formerly by the U.K. Particle Physics and Astronomy Research Council.
Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerpen, Belgium was supported by FNRS-FWO-Vlaanderen, IISN-IIKW and IWT and by Interuniversity Attraction Poles Programme, Belgian Science Policy.
National Institute for Physics and Nuclear Engineering (NIPNE), Bucharest, Romania was supported by the Romanian National Authority for Scientific Research under the contract PN 09370101.
STFC, Rutherford Appleton Laboratory, Didcot, Oxfordshire, U.K. was supported by the U.K. Science and Technology Facilities Council, and formerly by the U.K. Particle Physics and Astronomy Research Council.
Institute for Nuclear Physics, Cracow, Poland was partially Supported by Polish Ministry of Science and Higher Education, grant DPN/N168/DESY/2009.
Institut für Physik, TU Dortmund, Dortmund, Germany was supported by the Bundesministerium für Bildung und Forschung, FRG, under contract numbers 05H09GUF, 05H09VHC, 05H09VHF, 05H16PEA.
Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany was supported by the Bundesministerium für Bildung und Forschung, FRG, under contract numbers 05H09GUF, 05H09VHC, 05H09VHF, 05H16PEA.
Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany was supported by the Bundesministerium für Bildung und Forschung, FRG, under contract numbers 05H09GUF, 05H09VHC, 05H09VHF, 05H16PEA.
Kirchhoff-Institut für Physik, Universität Heidelberg, Heidelberg, Germany was supported by the Bundesministerium für Bildung und Forschung, FRG, under contract numbers 05H09GUF, 05H09VHC, 05H09VHF, 05H16PEA.
Institute of Experimental Physics, Slovak Academy of Sciences, Košice, Slovak Republic was supported by VEGA SR grant no. 2/7062/ 27.
Department of Physics, University of Lancaster, Lancaster, U.K. was supported by the U.K. Science and Technology Facilities Council, and formerly by the U.K. Particle Physics and Astronomy Research Council.
Department of Physics, University of Liverpool, Liverpool, U.K. was supported by the U.K. Science and Technology Facilities Council, and formerly by the U.K. Particle Physics and Astronomy Research Council.
School of Physics and Astronomy, Queen Mary, University of London, London, U.K. was supported by the U.K. Science and Technology Facilities Council, and formerly by the U.K. Particle Physics and Astronomy Research Council.
Departamento de Fisica Aplicada, CINVESTAV, Mérida, Yucatán, México was supported by CONACYT, México, grant 48778-F.
Institute for Theoretical and Experimental Physics, Moscow, Russia was Russian Foundation for Basic Research (RFBR), grant no 1329.2008.2 and Rosatom.
Faculty of Science, University of Montenegro, Podgorica, Montenegro was partially Supported by Ministry of Science of Montenegro, no. 05-1/3-3352.
Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic was supported by the Ministry of Education of the Czech Republic under the projects LC527, INGOLA09042 and MSM0021620859.
Faculty of Mathematics and Physics, Charles University, Praha, Czech Republic was supported by the Ministry of Education of the Czech Republic under the projects LC527, INGOLA09042 and MSM0021620859.
Institut für Teilchenphysik, ETH, Zürich, Switzerland was supported by the Swiss National Science Foundation.
Physik-Institut der Universität Zürich, Zürich, Switzerland was supported by the Swiss National Science Foundation.
Department of Physics, Oxford University, Oxford, U.K.was supported by the U.K. Science and Technology Facilities Council, and formerly by the U.K. Particle Physics and Astronomy Research Council.
Initiative and Networking Fund of the Helmholtz Association (HGF) under the contract VH-NG-401 and S0-072. (K. Lipka, R. Plačakytė, V. Radescu)
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H1 collaboration., Andreev, V., Baghdasaryan, A. et al. Measurement of dijet production in diffractive deep-inelastic ep scattering at HERA. J. High Energ. Phys. 2015, 92 (2015). https://doi.org/10.1007/JHEP03(2015)092
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DOI: https://doi.org/10.1007/JHEP03(2015)092