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    First measurement of unpolarized semi-inclusive deep-inelastic scattering cross sections from a He3 target

    X. Yan1,*, K. Allada2,3, K. Aniol4, J. R. M. Annand5, T. Averett6, F. Benmokhtar7, W. Bertozzi2, P. C. Bradshaw6, P. Bosted3 et al. (Jefferson Lab Hall A Collaboration)

    P. Bosted3, A. Camsonne3, M. Canan8, G. D. Cates9, C. Chen10, J.-P. Chen3, W. Chen1, K. Chirapatpimol9, E. Chudakov3, E. Cisbani11,12, J. C. Cornejo4, F. Cusanno13,†, M. M. Dalton9,3, W. Deconinck2, C. W. de Jager3,9, R. De Leo14, X. Deng9, A. Deur3, H. Ding9, P. A. M. Dolph9, C. Dutta15, D. Dutta16, L. El Fassi16, S. Frullani13,12, H. Gao1, F. Garibaldi13,12, D. Gaskell3, S. Gilad2, R. Gilman3,17, O. Glamazdin18, S. Golge8, L. Guo19,20, D. Hamilton5, O. Hansen3, D. W. Higinbotham3, T. Holmstrom21, J. Huang2,19, M. Huang1, H. F. Ibrahim22, M. Iodice23, X. Jiang17,19, G. Jin9, M. K. Jones3, J. Katich6, A. Kelleher6, W. Kim24, A. Kolarkar15, W. Korsch15, J. J. LeRose3, X. Li25, Y. Li25, R. Lindgren9, T. Liu1, N. Liyanage9, E. Long26, H.-J. Lu27, D. J. Margaziotis4, P. Markowitz20, S. Marrone14, D. McNulty28, Z.-E. Meziani29, R. Michaels3, B. Moffit2,3, C. Muñoz Camacho30, S. Nanda3, A. Narayan16, V. Nelyubin9, B. Norum9, Y. Oh31, M. Osipenko32, D. Parno33, J.-C. Peng34, S. K. Phillips35, M. Posik29, A. J. R. Puckett2,19, X. Qian36, Y. Qiang1,3, A. Rakhman37, R. Ransome17, S. Riordan9, A. Saha3,†, B. Sawatzky29,3, E. Schulte17, A. Shahinyan38, M. H. Shabestari9, S. Širca39, S. Stepanyan3, R. Subedi9, V. Sulkosky2,3, L.-G. Tang10, W. A. Tobias9, G. M. Urciuoli13, I. Vilardi14, K. Wang9, B. Wojtsekhowski3, Y. Wang34, X. Yan27, H. Yao29, Y. Ye27, Z. Ye10, L. Yuan10, X. Zhan2, Y. Zhang40, Y.-W. Zhang40, B. Zhao6, Y. X. Zhao27, X. Zheng9, L. Zhu34,10, X. Zhu1, and X. Zong1 (Jefferson Lab Hall A Collaboration)

    • 1Duke University, Durham, North Carolina 27708, USA
    • 2Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    • 3Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
    • 4California State University, Los Angeles, Los Angeles, California 90032, USA
    • 5University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom
    • 6College of William and Mary, Williamsburg, Virginia 23187, USA
    • 7Duquesne University, Pittsburgh, Pennsylvania 15282, USA
    • 8Old Dominion University, Norfolk, Virginia 23529, USA
    • 9University of Virginia, Charlottesville, Virginia 22904, USA
    • 10Hampton University, Hampton, Virginia 23187, USA
    • 11INFN, Sezione di Roma, I-00185 Rome, Italy
    • 12Istituto Superiore di Sanità, I-00161 Rome, Italy
    • 13INFN, Sezione di Roma, I-00161 Rome, Italy
    • 14INFN, Sezione di Bari and University of Bari, I-70126 Bari, Italy
    • 15University of Kentucky, Lexington, Kentucky 40506, USA
    • 16Mississippi State University, Mississippi 39762, USA
    • 17Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
    • 18Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
    • 19Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
    • 20Florida International University, Miami, Florida 33199, USA
    • 21Longwood University, Farmville, Virginia 23909, USA
    • 22Cairo University, Giza 12613, Egypt
    • 23INFN, Sezione di Roma Tre, I-00146 Rome, Italy
    • 24Kyungpook National University, Taegu 702-701, Republic of Korea
    • 25China Institute of Atomic Energy, Beijing, People's Republic of China
    • 26Kent State University, Kent, Ohio 44242, USA
    • 27University of Science and Technology of China, Hefei 230026, People's Republic of China
    • 28University of Massachusetts, Amherst, Massachusetts 01003, USA
    • 29Temple University, Philadelphia, Pennsylvania 19122, USA
    • 30Université Blaise Pascal/IN2P3, F-63177 Aubière, France
    • 31Seoul National University, Seoul, South Korea
    • 32INFN, Sezione di Genova, I-16146 Genova, Italy
    • 33Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    • 34University of Illinois, Urbana-Champaign, Illinois 61801, USA
    • 35University of New Hampshire, Durham, New Hampshire 03824, USA
    • 36Physics Department, Brookhaven National Laboratory, Upton, New York, USA
    • 37Syracuse University, Syracuse, New York 13244, USA
    • 38Yerevan Physics Institute, Yerevan 375036, Armenia
    • 39University of Ljubljana, SI-1000 Ljubljana, Slovenia
    • 40Lanzhou University, Lanzhou 730000, Gansu, People's Republic of China

    • *xy33@phy.duke.edu
    • †Deceased.
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    Phys. Rev. C 95, 035209 – Published 24 March, 2017

    DOI: https://doi.org/10.1103/PhysRevC.95.035209

    Abstract

    The unpolarized semi-inclusive deep-inelastic scattering (SIDIS) differential cross sections in He3(e,e′π±)X have been measured for the first time in Jefferson Lab experiment E06-010 with a 5.9GeVe− beam on a He3 gas target. The experiment focuses on the valence quark region, covering a kinematic range 0.12<xbj<0.45,1<Q2<4(GeV/c)2,0.45<zh<0.65, and 0.05<Pt<0.55GeV/c. The extracted SIDIS differential cross sections of π± production are compared with existing phenomenological models while the He3 nucleus approximated as two protons and one neutron in a plane-wave picture, in multidimensional bins. Within the experimental uncertainties, the azimuthal modulations of the cross sections are found to be consistent with zero.

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    Phys. Rev. C 95, 035209– Published 24 March, 2017
    • Received 7 October 2016
    • Revised 8 January 2017

    ©2017 American Physical Society

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