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Azimuthal asymmetries in exclusive four-particle “Drell-Yan” events

  • Regular Article - Theoretical Physics
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Abstract.

I study hard collisions between unpolarized protons and antiprotons where a lepton-antilepton pair is detected in coincidence with a final proton-antiproton pair, and no more particles are produced, in the regime 10 GeV2 ≪ s ≪ 1000 GeV2 , M > 4 GeV, q T < 3 GeV/c. The present work is centered on azimuthal asymmetries. Because of momentum conservation, a Boer-Mulders term in the momentum distribution of a quark implies a balancing effect in the momentum distribution of some spectators. This produces azimuthal asymmetries of the final hadrons. To analyze this, I have organized a parton-level Monte Carlo generator where a standard cos(2\( \phi\)) -asymmetry of the dilepton distribution is produced, thanks to a soft rescattering process between an active quark coming from a hadron and a spectator antidiquark coming from the other hadron. This produces cos(2\( \phi\)) -asymmetries of the final hadron pair. Hadron and lepton asymmetries have the same size.

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References

  1. V. Barone, A. Drago, Ph.G. Ratcliffe, Phys. Rep. 359, 1 (2002)

    Article  MATH  ADS  Google Scholar 

  2. G. Ciullo, M. Contalbrigo, D. Hasch, P. Lenisa (Editors), Proceedings of Transversity 2008, Ferrara, Italy, March 2008 (World Scientific, 2009)

  3. S.D. Drell, T.M. Yan, Phys. Rev. Lett. 25, 313 (1970)

    Article  ADS  Google Scholar 

  4. S.D. Drell, T.M. Yan, Ann. Phys. (N.Y.) 66, 578 (1971)

    Article  ADS  Google Scholar 

  5. PANDA Collaboration, L.o.I. for the Proton-Antiproton Darmstadt Experiment (2004), http://www.gsi.de/documents/DOC-2004-Jan-115-1.pdf

  6. The PANDA Collaboration (W. Erni), Physics performance report for PANDA: strong interaction studies with antiprotons, arXiv:0903.3905

  7. D. Bettoni, The PANDA experiment at Fair, in Proceedings of GHP2009, Denver, Colorado, USA, 2009, web-available presentation

  8. C.S. Lam, W.-K. Tung, Phys. Rev. D 18, 2447 (1978)

    Article  ADS  Google Scholar 

  9. C.S. Lam, W.-K. Tung, Phys. Rev. D 21, 2712 (1980)

    Article  ADS  Google Scholar 

  10. J. Badier et al., Z. Phys. C 11, 195 (1981)

    Article  ADS  Google Scholar 

  11. O. Callot, preprint LAL-81-08 mar 81 (available at the KEK online preprint library), published in the Proceedings of the 1st Moriond Workshop, Les Arcs, France, 25-30 Jan 1981, edited by J. Tran Thanh Van (Editions Frontières, 1981)

  12. S. Falciano et al., Z. Phys. C 31, 513 (1986)

    Article  ADS  Google Scholar 

  13. M. Guanziroli et al., Z. Phys. C 37, 545 (1988)

    Article  ADS  Google Scholar 

  14. J.S. Conway et al., Phys. Rev. D 39, 92 (1989)

    Article  ADS  Google Scholar 

  15. L.Y. Zhu et al., Phys. Rev. Lett. 99, 082301 (2007)

    Article  ADS  Google Scholar 

  16. G. Matthiae, Riv. Nuovo Cimento 4, No. 3, 1 (1981)

    Google Scholar 

  17. I.R. Kenyon, Rep. Prog. Phys. 45, 1261 (1982)

    Article  ADS  Google Scholar 

  18. D. Antreasyan et al., Nucl. Phys B 199, 365 (1982)

    Article  ADS  Google Scholar 

  19. D. Antreasyan et al., Nuovo Cimento A 99, 595 (1988)

    Article  ADS  Google Scholar 

  20. A. Bianconi, Eur. Phys. J. A 44, 313 (2010)

    Article  ADS  Google Scholar 

  21. T. Sjostrand, S. Mrenna, P. Skands, Comput. Phys. Commun. 178, 852 (2008)

    Article  ADS  Google Scholar 

  22. M. Colantoni for the Compass Collaboration, Future Drell-Yan measurements at Compass, in the Proceedings of Transversity 2008, Ferrara, Italy, March 2008, edited by G. Ciullo, M. Contalbrigo, D. Hasch, P. Lenisa (World Scientific, 2009).

  23. J.C. Collins, D.E. Soper, Phys. Rev. D 16, 2219 (1977)

    Article  ADS  Google Scholar 

  24. J.C. Collins, D.E. Soper, G. Sterman, Nucl. Phys. B 261, 104 (1985)

    Article  ADS  Google Scholar 

  25. J.C. Collins, D.E. Soper, G. Sterman, Nucl. Phys. B 308, 833 (1988)

    Article  ADS  Google Scholar 

  26. G.T. Bodwin, Phys. Rev. D 31, 2616 (1985)

    Article  ADS  Google Scholar 

  27. G.T. Bodwin, Phys. Rev. D 34, 3932 (1986)

    Article  ADS  Google Scholar 

  28. D. Boer, P.J. Mulders, Phys. Rev. D 57, 5780 (1998)

    Article  ADS  Google Scholar 

  29. D. Boer, Phys. Rev. D 60, 014012 (1999)

    Article  ADS  Google Scholar 

  30. D. Boer, S.J. Brodsky, D.S. Hwang, Phys. Rev. D 67, 054003 (2003)

    Article  ADS  Google Scholar 

  31. R. Jakob, P.J. Mulders, J. Rodriguez, Nucl. Phys. A 626, 937 (1997)

    Article  ADS  Google Scholar 

  32. A. Bacchetta, U. d’Alesio, M. Diehl, C.A. Miller, Phys. Rev. D 70, 117504 (2004)

    Article  ADS  Google Scholar 

  33. L.P. Gamberg, G.R. Goldstein, Phys. Lett. B 650, 362 (2007)

    Article  ADS  Google Scholar 

  34. A. Bacchetta, F. Conti, M. Radici, Phys. Rev. D 78, 074010 (2008)

    Article  ADS  Google Scholar 

  35. V. Barone, A. Prokudin, B.-Q. Ma, Phys. Rev. D 78, 045022 (2008)

    Article  ADS  Google Scholar 

  36. A. Courtoy, S. Scopetta, V. Vento, Phys. Rev. D 80, 074032 (2009)

    Article  ADS  Google Scholar 

  37. G.R. Goldstein, M.J. Moravcsik, Ann. Phys. (N.Y.) 142, 219 (1982)

    Article  ADS  Google Scholar 

  38. A. Bianconi, J. Phys. G 35, 115003 (2008)

    Article  MathSciNet  ADS  Google Scholar 

  39. S. Arnold, A. Metz, M. Schlegel, Phys. Rev. D 79, 034005 (2009)

    Article  ADS  Google Scholar 

  40. D. Boer, W. Vogelsang, Phys. Rev. D 74, 014004 (2006)

    Article  ADS  Google Scholar 

  41. A. Bianconi, D. Alberto, M.P. Bussa, M. De Stefanis, L. Ferrero, M. Greco, M. Maggiora, G. Serbanut, arXiv:0911.5493

  42. T. Sjostrand, S. Mrenna, P. Skands, JHEP 05, 026 (2006) arXiv:hep-ph/0603175

    Article  ADS  Google Scholar 

  43. B. Andersson, H. Hu, arXiv:hep-ph/9910285

  44. B. Andersson et al., Phys. Lett. B 85, 417 (1979)

    Article  ADS  Google Scholar 

  45. S. Pomp, G. Ingelman, T. Johansson, S. Ohlsson, Eur. Phys. J. A 15, 517 (2002)

    Article  ADS  Google Scholar 

  46. X. Artru, J.M. Richard, Phys. Part. Nucl. 35, S126 (2004)

    Google Scholar 

  47. V.B. Berestetskij, E.M. Lifsits, L.P. Pitaevskij, Reljativitskaja kvantovaja teorija (Mir Editions, Moscow, 1978)

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Authors and Affiliations

  1. Dipartimento di Chimica e Fisica per l’Ingegneria e per i Materiali, Università di Brescia, I-25133, Brescia, Italy

    A. Bianconi

  2. Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, I-27100, Pavia, Italy

    A. Bianconi

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  1. A. Bianconi
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Correspondence to A. Bianconi.

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Communicated by M. Anselmino

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Bianconi, A. Azimuthal asymmetries in exclusive four-particle “Drell-Yan” events. Eur. Phys. J. A 45, 301–310 (2010). https://doi.org/10.1140/epja/i2010-11006-1

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  • DOI: https://doi.org/10.1140/epja/i2010-11006-1

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