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  • Open Access

Constraining gluon density of pions at large x by pion-induced J/ψ production

Wen-Chen Chang

Jen-Chieh Peng

Stephane Platchkov

Takahiro Sawada

  • Institute of Physics, Academia Sinica, Taipei 11529, Taiwan

  • Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

  • IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France

  • Department of Physics, Osaka City University, Osaka 558-8585, Japan

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Phys. Rev. D 102, 054024 – Published 24 September, 2020

DOI: https://doi.org/10.1103/PhysRevD.102.054024

Abstract

The gluon distributions of the pion obtained from various global fits exhibit large variations among them. Within the framework of the color evaporation model, we show that the existing pion-induced J/ψ production data, usually not included in the global fits, can impose useful additional constraints on the pion parton distribution functions (PDFs). In particular, these data can probe the pion’s gluon densities at large x. Existing pion-induced J/ψ data covering a broad range of beam momenta are compared with next-to-leading-order QCD calculations using various sets of pion PDFs. It is found that J/ψ data measured at forward rapidity and at sufficiently high beam momentum are sensitive to the large-x gluon distribution of pions. The current J/ψ data favor the Sutton-Martin-Roberts-Stirling and Gluck-Reya-Vogt pion PDFs, containing significant gluon content at large x.

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References (81)

  1. H. Yukawa, Proc. Phys.-Math. Soc. Jpn. 17, 48 (1935).
  2. T. Horn and C. D. Roberts, J. Phys. G 43, 073001 (2016).
  3. M. Gluck, J. F. Owens, and E. Reya, Phys. Rev. D 17, 2324 (1978).
  4. V. D. Barger, W. Y. Keung, and R. J. N. Phillips, Z. Phys. C 6, 169 (1980).
  5. V. A. Khoze, A. D. Martin, and M. G. Ryskin, Eur. Phys. J. C 48, 797 (2006).
  6. J. R. McKenney, N. Sato, W. Melnitchouk, and C. R. Ji, Phys. Rev. D 93, 054011 (2016).
  7. S. X. Qin, C. Chen, C. Mezrag, and C. D. Roberts, Phys. Rev. C 97, 015203 (2018).
  8. R. J. Perry, A. s. Kzlers, and A. W. Thomas, Phys. Rev. C 100, 025206 (2019).
  9. J. T. Londergan, G. Q. Liu, E. N. Rodionov, and A. W. Thomas, Phys. Lett. B 361, 110 (1995).
  10. B. Adams et al., Letter of intent: A new QCD facility at the M2 beam line of the CERN SPS (COMPASS++/AMBER), https://nqf-m2.web.cern.ch/.
  11. J. F. Owens, Phys. Rev. D 30, 943 (1984).
  12. P. Aurenche, R. Baier, M. Fontannaz, M. N. Kienzle-Focacci, and M. Werlen, Phys. Lett. B 233, 517 (1989).
  13. P. J. Sutton, A. D. Martin, R. G. Roberts, and W. J. Stirling, Phys. Rev. D 45, 2349 (1992).
  14. M. Gluck, E. Reya, and A. Vogt, Z. Phys. C 53, 651 (1992).
  15. M. Gluck, E. Reya, and I. Schienbein, Eur. Phys. J. C 10, 313 (1999).
  16. C. Bourrely and J. Soffer, Nucl. Phys. A981, 118 (2019).
  17. I. Novikov et al., Phys. Rev. D 102, 014040 (2020).
  18. P. C. Barry, N. Sato, W. Melnitchouk, and C. R. Ji, Phys. Rev. Lett. 121, 152001 (2018).
  19. M. Aghasyan et al. (COMPASS Collaboration), Phys. Rev. Lett. 119, 112002 (2017); C. Y. Hsieh, J. Phys. Soc. Jpn. Conf. Proc. 26, 031003 (2019).
  20. A. Accardi et al., Eur. Phys. J. A 52, 268 (2016).
  21. A. C. Aguilar et al., Eur. Phys. J. A 55, 190 (2019).
  22. S. i. Nam, Phys. Rev. D 86, 074005 (2012).
  23. A. Watanabe, C. W. Kao, and K. Suzuki, Phys. Rev. D 94, 114008 (2016).
  24. A. Watanabe, T. Sawada, and C. W. Kao, Phys. Rev. D 97, 074015 (2018).
  25. P. T. P. Hutauruk, I. C. Cloet, and A. W. Thomas, Phys. Rev. C 94, 035201 (2016).
  26. J. Lan, C. Mondal, S. Jia, X. Zhao, and J. P. Vary, Phys. Rev. Lett. 122, 172001 (2019).
  27. J. Lan, C. Mondal, S. Jia, X. Zhao, and J. P. Vary, Phys. Rev. D 101, 034024 (2020).
  28. G. F. de Teramond, T. Liu, R. S. Sufian, H. G. Dosch, S. J. Brodsky, and A. Deur (HLFHS Collaboration), Phys. Rev. Lett. 120, 182001 (2018).
  29. A. Watanabe, T. Sawada, and M. Huang, Phys. Lett. B 805, 135470 (2020).
  30. C. Han, H. Xing, X. Wang, Q. Fu, R. Wang, and X. Chen, Phys. Lett. B 800, 135066 (2020).
  31. L. Chang, C. Mezrag, H. Moutarde, C. D. Roberts, J. Rodrguez-Quintero, and P. C. Tandy, Phys. Lett. B 737, 23 (2014).
  32. L. Chang and A. W. Thomas, Phys. Lett. B 749, 547 (2015).
  33. C. Chen, L. Chang, C. D. Roberts, S. Wan, and H. S. Zong, Phys. Rev. D 93, 074021 (2016).
  34. C. Shi, C. Mezrag, and H. s. Zong, Phys. Rev. D 98, 054029 (2018).
  35. K. D. Bednar, I. C. Clot, and P. C. Tandy, Phys. Rev. Lett. 124, 042002 (2020).
  36. M. Ding, K. Raya, D. Binosi, L. Chang, C. D. Roberts, and S. M. Schmidt, Phys. Rev. D 101, 054014 (2020).
  37. X. Ji, Phys. Rev. Lett. 110, 262002 (2013); X. Ji, Y. S. Liu, Y. Liu, J. H. Zhang, and Y. Zhao, arXiv:2004.03543.
  38. J. H. Zhang, J. W. Chen, L. Jin, H. W. Lin, A. Schfer, and Y. Zhao, Phys. Rev. D 100, 034505 (2019).
  39. R. S. Sufian, J. Karpie, C. Egerer, K. Orginos, J. W. Qiu, and D. G. Richards, Phys. Rev. D 99, 074507 (2019).
  40. T. Izubuchi, L. Jin, C. Kallidonis, N. Karthik, S. Mukherjee, P. Petreczky, C. Shugert, and S. Syritsyn, Phys. Rev. D 100, 034516 (2019).
  41. B. Jo, J. Karpie, K. Orginos, A. V. Radyushkin, D. G. Richards, R. S. Sufian, and S. Zafeiropoulos, Phys. Rev. D 100, 114512 (2019).
  42. R. S. Sufian et al., arXiv:2001.04960.
  43. M. B. Einhorn and S. D. Ellis, Phys. Rev. D 12, 2007 (1975); H. Fritzsch, Phys. Lett. 67B, 217 (1977); F. Halzen, 69B, 105 (1977).
  44. C. H. Chang, Nucl. Phys. B172, 425 (1980); E. L. Berger and D. L. Jones, Phys. Rev. D 23, 1521 (1981); R. Baier and R. Ruckl, Phys. Lett. 102B, 364 (1981); Z. Phys. C 19, 251 (1983).
  45. G. T. Bodwin, E. Braaten, and G. P. Lepage, Phys. Rev. D 51, 1125 (1995); 55, 5853(E) (1997).
  46. G. A. Schuler, arXiv:hep-ph/9403387; Z. Phys. C 71, 317 (1996); N. Brambilla et al., Eur. Phys. J. C 71, 1534 (2011); A. Andronic et al., 76, 107 (2016); J. P. Lansberg, arXiv:1903.09185.
  47. F. Maltoni et al., Phys. Lett. B 638, 202 (2006).
  48. G. T. Bodwin, E. Braaten, and J. Lee, Phys. Rev. D 72, 014004 (2005).
  49. R. Gavai, D. Kharzeev, H. Satz, G. A. Schuler, K. Sridhar, and R. Vogt, Int. J. Mod. Phys. A 10, 3043 (1995).
  50. G. A. Schuler and R. Vogt, Phys. Lett. B 387, 181 (1996).
  51. R. E. Nelson, R. Vogt, and A. D. Frawley, Phys. Rev. C 87, 014908 (2013).
  52. J. P. Lansberg, H. S. Shao, N. Yamanaka, Y. J. Zhang, and C. Nos, Phys. Lett. B 807, 135559 (2020).
  53. P. Nason, S. Dawson, and R. K. Ellis, Nucl. Phys. B303, 607 (1988).
  54. P. Nason, S. Dawson, and R. K. Ellis, Nucl. Phys. B327, 49 (1989); B335, 260(E) (1990).
  55. M. L. Mangano, P. Nason, and G. Ridolfi, Nucl. Phys. B405, 507 (1993).
  56. J. Badier et al. (NA3 Collaboration), Z. Phys. C 18, 281 (1983).
  57. E. Anassontzis et al., Phys. Rev. D 38, 1377 (1988).
  58. S. Falciano et al. (NA10 Collaboration), Z. Phys. C 31, 513 (1986); M. Guanziroli et al., 37, 545 (1988).
  59. J. S. Conway et al. (E615 Collaboration), Phys. Rev. D 39, 92 (1989); J. G. Heinrich et al., 44, 1909 (1991).
  60. M. Bonesini et al. (WA70 Collaboration), Z. Phys. C 37, 535 (1988).
  61. S. Chekanov et al. (ZEUS Collaboration), Nucl. Phys. B637, 3 (2002).
  62. F. D. Aaron et al. (H1 Collaboration), Eur. Phys. J. C 68, 381 (2010).
  63. M. Aicher, A. Schafer, and W. Vogelsang, Phys. Rev. Lett. 105, 252003 (2010).
  64. S. Dulat, T.-J. Hou, J. Gao, M. Guzzi, J. Huston, P. Nadolsky, J. Pumplin, C. Schmidt, D. Stump, and C.-P. Yuan, Phys. Rev. D 93, 033006 (2016).
  65. M. R. Whalley, D. Bourilkov, and R. C. Group, The Les Houches accord PDFs (LHAPDF) and LHAGLUE, https://lhapdf.hepforge.org/lhapdf5/.
  66. A. Buckley, J. Ferrando, S. Lloyd, K. Nordstrm, B. Page, M. Rfenacht, M. Schnherr, and G. Watt, Eur. Phys. J. C 75, 132 (2015).
  67. Y. Alexandrov et al. (BEATRICE Collaboration), Nucl. Phys. B557, 3 (1999).
  68. A. Gribushin et al. (E672 and E706 Collaborations), Phys. Rev. D 53, 4723 (1996).
  69. L. Antoniazzi et al. (E705 Collaboration), Phys. Rev. D 46, 4828 (1992).
  70. J. Badier et al. (NA3 Collaboration), Z. Phys. C 20, 101 (1983).
  71. J. G. Branson, G. H. Sanders, A. J. S. Smith, J. J. Thaler, K. J. Anderson, G. G. Henry, K. T. McDonald, J. E. Pilcher, and E. I. Rosenberg, Phys. Rev. Lett. 38, 1331 (1977).
  72. J. G. McEwen et al., Phys. Lett. 121B, 198 (1983).
  73. S. Tzamarias et al., Phys. Rev. D 48, 5067 (1993).
  74. M. J. Corden et al., Phys. Lett. 98B, 220 (1981).
  75. J. LeBritton, D. McCal, A. C. Melissinos, W. Metcalf, A. Abashian, G. R. Kalbfleisch, J. Alspector, S. Borenstein, and R. C. Strand, Phys. Lett. 81B, 401 (1979).
  76. Y. B. Bushnin et al., Phys. Lett. 72B, 269 (1977).
  77. M. J. Corden et al., Phys. Lett. 96B, 411 (1980).
  78. K. J. Eskola, P. Paakkinen, H. Paukkunen, and C. A. Salgado, Eur. Phys. J. C 77, 163 (2017).
  79. P. Charpentier, Ph.D. thesis, Université de Paris-Sud, 1983.
  80. K. Kovarik et al., Phys. Rev. D 93, 085037 (2016).
  81. Jefferson Lab experiment PR12-15-006, Measurement of tagged deep-inelastic scattering (TDIS), https://www.jlab.org/exp_prog/proposals/14/PR12-14-010.pdf.

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Phys. Rev. D 102, 054024– Published 24 September, 2020
  • Received 12 June 2020
  • Accepted 8 September 2020
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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