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The width of the ω meson in the nuclear medium

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Abstract.

We evaluate the width of the ω meson in nuclear matter. We consider the free decay mode of the ω into three pions, which is dominated by ρπ decay, and replace the ρ and π propagators by their medium-modified ones. We also take into account the quasielastic and inelastic processes induced by a vector-baryon interaction dominated by vector meson exchange, as well as the contributions coming from the \( \omega\rightarrow K\bar{K}\) mechanism with medium-modified K , \( \bar{K}\) propagators. We obtain a substantial increase of the ω width in the medium, reaching a value of 121 ± 10 MeV at normal nuclear matter density for an ω at rest, which comes mainly from ωN → ππN, ωNN → πNN processes associated to the dominant ω → ρπ decay mode. The value of the width increases moderately with momentum, reaching values of around 200MeV at 600MeV/c.

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References

  1. R. Rapp, J. Wambach, Adv. Nucl. Phys. 25, 1 (2000)

    Google Scholar 

  2. R.S. Hayano, T. Hatsuda, Rev. Mod. Phys. 82, 2949 (2010)

    Article  ADS  Google Scholar 

  3. S. Leupold, V. Metag, U. Mosel, Int. J. Mod. Phys. E 19, 147 (2010)

    Article  ADS  Google Scholar 

  4. E. Oset, A. Ramos, E.J. Garzon, R. Molina, L. Tolos, C.W. Xiao, J.J. Wu, B.S. Zou, Int. J. Mod. Phys. E 21, 1230011 (2012)

    Article  ADS  Google Scholar 

  5. M. Bando, T. Kugo, S. Uehara, K. Yamawaki, T. Yanagida, Phys. Rev. Lett. 54, 1215 (1985)

    Article  ADS  Google Scholar 

  6. M. Bando, T. Kugo, K. Yamawaki, Phys. Rep. 164, 217 (1988)

    Article  ADS  MathSciNet  Google Scholar 

  7. U.G. Meissner, Phys. Rep. 161, 213 (1988)

    Article  ADS  Google Scholar 

  8. M. Harada, K. Yamawaki, Phys. Rep. 381, 1 (2003)

    Article  ADS  Google Scholar 

  9. R. Rapp, G. Chanfray, J. Wambach, Nucl. Phys. A 617, 472 (1997)

    Article  ADS  Google Scholar 

  10. W. Peters, M. Post, H. Lenske, S. Leupold, U. Mosel, Nucl. Phys. A 632, 109 (1998)

    Article  ADS  Google Scholar 

  11. R. Rapp, J. Wambach, Adv. Nucl. Phys. 25, 1 (2000)

    Google Scholar 

  12. M. Urban, M. Buballa, R. Rapp, J. Wambach, Nucl. Phys. A 673, 357 (2000)

    Article  ADS  Google Scholar 

  13. D. Cabrera, E. Oset, M.J. Vicente Vacas, Nucl. Phys. A 705, 90 (2002)

    Article  ADS  Google Scholar 

  14. D. Cabrera, M.J. Vicente Vacas, Phys. Rev. C 67, 045203 (2003)

    Article  ADS  Google Scholar 

  15. D. Cabrera, L. Roca, E. Oset, H. Toki, M.J. Vicente Vacas, Nucl. Phys. A 733, 130 (2004)

    Article  ADS  Google Scholar 

  16. NA60 Collaboration (S. Damjanovic et al.), Nucl. Phys. A 783, 327 (2007)

    Article  ADS  Google Scholar 

  17. CLAS Collaboration (M.H. Wood et al.), Phys. Rev. C 78, 015201 (2008)

    Article  ADS  Google Scholar 

  18. E325 Collaboration (K. Ozawa et al.), Phys. Rev. Lett. 86, 5019 (2001)

    Article  ADS  Google Scholar 

  19. T. Tabaru, H. En’yo, R. Muto, M. Naruki, S. Yokkaichi, J. Chiba, M. Ieiri, O. Sasaki et al., Phys. Rev. C 74, 025201 (2006)

    Article  ADS  Google Scholar 

  20. E325 Collaboration (F. Sakuma et al.), Phys. Rev. Lett. 98, 152302 (2007)

    Article  ADS  Google Scholar 

  21. CLAS Collaboration (M.H. Wood et al.), Phys. Rev. Lett. 105, 112301 (2010)

    Article  ADS  Google Scholar 

  22. CBELSA/TAPS Collaboration (D. Trnka et al.), Phys. Rev. Lett. 94, 192303 (2005)

    Article  ADS  Google Scholar 

  23. M. Kaskulov, E. Hernandez, E. Oset, Eur. Phys. J. A 31, 245 (2007)

    Article  ADS  Google Scholar 

  24. CBELSA/TAPS Collaboration (M. Nanova et al.), Phys. Rev. C 82, 035209 (2010)

    Article  ADS  Google Scholar 

  25. V. Metag, Talk given at the Workshop on Electromagnetic Probes of Strongly Interacting Matter: Status and Future of Low-Mass Lepton-Pair Spectroscopy, ECT$^*$, Trento (Italy), 20-24 May, 2013

  26. D. Trnka, PhD Thesis, University of Giessen (Germany)

  27. V. Metag, Prog. Theor. Phys. Suppl. 168, 503 (2007)

    Article  ADS  Google Scholar 

  28. M. Kaskulov, H. Nagahiro, S. Hirenzaki, E. Oset, Phys. Rev. C 75, 064616 (2007)

    Article  ADS  Google Scholar 

  29. V. Metag, Prog. Part. Nucl. Phys. 61, 245 (2008)

    Article  ADS  Google Scholar 

  30. M. Kaskulov, E. Hernandez, E. Oset, Eur. Phys. J. A 46, 223 (2010)

    Article  ADS  Google Scholar 

  31. CBELSA/TAPS Collaboration (M. Kotulla et al.), Phys. Rev. Lett. 100, 192302 (2008)

    Article  ADS  Google Scholar 

  32. H.C. Jean, J. Piekarewicz, A.G. Williams, Phys. Rev. C 49, 1981 (1994)

    Article  ADS  Google Scholar 

  33. F. Klingl, N. Kaiser, W. Weise, Nucl. Phys. A 624, 527 (1997)

    Article  ADS  Google Scholar 

  34. K. Saito, K. Tsushima, A.W. Thomas, A.G. Williams, Phys. Lett. B 433, 243 (1998)

    Article  ADS  Google Scholar 

  35. K. Tsushima, D.-H. Lu, A.W. Thomas, K. Saito, Phys. Lett. B 443, 26 (1998)

    Article  ADS  Google Scholar 

  36. B. Friman, Acta Phys. Pol. B 29, 3195 (1998)

    ADS  Google Scholar 

  37. F. Klingl, T. Waas, W. Weise, Nucl. Phys. A 650, 299 (1999)

    Article  ADS  Google Scholar 

  38. M. Post, U. Mosel, Nucl. Phys. A 688, 808 (2001)

    Article  ADS  Google Scholar 

  39. K. Saito, K. Tsushima, D.-H. Lu, A.W. Thomas, Phys. Rev. C 59, 1203 (1999)

    Article  ADS  Google Scholar 

  40. G.I. Lykasov, W. Cassing, A. Sibirtsev, M.V. Rzyanin, Eur. Phys. J. A 6, 71 (1999)

    Article  ADS  Google Scholar 

  41. A. Sibirtsev, C. Elster, J. Speth, nucl-th/0203044

  42. A.K. Dutt-Mazumder, R. Hofmann, M. Pospelov, Phys. Rev. C 63, 015204 (2001)

    Article  ADS  Google Scholar 

  43. M.F.M. Lutz, G. Wolf, B. Friman, Nucl. Phys. A 706, 431 (2002) 765

    Article  ADS  Google Scholar 

  44. S. Zschocke, O.P. Pavlenko, B. Kampfer, Phys. Lett. B 562, 57 (2003)

    Article  ADS  Google Scholar 

  45. A.K. Dutt-Mazumder, Nucl. Phys. A 713, 119 (2003)

    Article  ADS  Google Scholar 

  46. F. Riek, J. Knoll, Nucl. Phys. A 740, 287 (2004)

    Article  ADS  Google Scholar 

  47. P. Muhlich, T. Falter, U. Mosel, Eur. Phys. J. A 20, 499 (2004)

    Article  ADS  Google Scholar 

  48. F. Eichstaedt, S. Leupold, U. Mosel, P. Muehlich, Prog. Theor. Phys. Suppl. 168, 495 (2007)

    Article  ADS  Google Scholar 

  49. P. Muehlich, V. Shklyar, S. Leupold, U. Mosel, M. Post, Nucl. Phys. A 780, 187 (2006)

    Article  ADS  Google Scholar 

  50. P. Muhlich, U. Mosel, Nucl. Phys. A 773, 156 (2006)

    Article  ADS  Google Scholar 

  51. B. Steinmueller, S. Leupold, Nucl. Phys. A 778, 195 (2006)

    Article  ADS  Google Scholar 

  52. A.T. Martell, P.J. Ellis, Phys. Rev. C 69, 065206 (2004)

    Article  ADS  Google Scholar 

  53. S. Ghosh, S. Sarkar, Eur. Phys. J. A 49, 97 (2013)

    Article  ADS  Google Scholar 

  54. S. Sarkar, B.-X. Sun, E. Oset et al., Eur. Phys. J. A 44, 431 (2010)

    Article  ADS  Google Scholar 

  55. E. Oset, A. Ramos, Eur. Phys. J. A 44, 445 (2010)

    Article  ADS  Google Scholar 

  56. L. Tolos, R. Molina, E. Oset, A. Ramos, Phys. Rev. C 82, 045210 (2010)

    Article  ADS  Google Scholar 

  57. Particle Data Group Collaboration (J. Beringer et al.), Phys. Rev. D 86, 010001 (2012)

    Article  ADS  Google Scholar 

  58. A. Bramon, A. Grau, G. Pancheri, Phys. Lett. B 283, 416 (1992)

    Article  ADS  Google Scholar 

  59. G. Ecker, J. Gasser, A. Pich, E. de Rafael, Nucl. Phys. B 321, 311 (1989)

    Article  ADS  Google Scholar 

  60. G. Ecker, J. Gasser, H. Leutwyler, A. Pich, E. de Rafael, Phys. Lett. B 223, 425 (1989)

    Article  ADS  Google Scholar 

  61. M. Benayoun, P. David, L. DelBuono, O. Leitner, Eur. Phys. J. C 65, 211 (2010)

    Article  ADS  Google Scholar 

  62. H. Nagahiro, L. Roca, A. Hosaka, E. Oset, Phys. Rev. D 79, 014015 (2009)

    Article  ADS  Google Scholar 

  63. J.E. Palomar, E. Oset, Nucl. Phys. A 716, 169 (2003)

    Article  ADS  Google Scholar 

  64. G. Ecker, Prog. Part. Nucl. Phys. 35, 1 (1995)

    Article  ADS  Google Scholar 

  65. V. Bernard, N. Kaiser, U.G. Meissner, Int. J. Mod. Phys. E 4, 193 (1995)

    Article  ADS  Google Scholar 

  66. E. Oset, H. Toki, W. Weise, Phys. Rep. 83, 281 (1982)

    Article  ADS  Google Scholar 

  67. R. Machleidt, K. Holinde, C. Elster, Phys. Rep. 149, 1 (1987)

    Article  ADS  Google Scholar 

  68. E. Oset, P. Fernandez de Cordoba, L.L. Salcedo, R. Brockmann, Phys. Rep. 188, 79 (1990)

    Article  ADS  Google Scholar 

  69. A. Ramos, E. Oset, L.L. Salcedo, Phys. Rev. C 50, 2314 (1994)

    Article  ADS  Google Scholar 

  70. D. Cabrera, R. Rapp, arXiv:1307.4001 [nucl-th]

  71. E.J. Garzon, E. Oset, Eur. Phys. J. A 48, 5 (2012)

    Article  ADS  Google Scholar 

  72. E.J. Garzon, J.J. Xie, E. Oset, Phys. Rev. C 87, 055204 (2013)

    Article  ADS  Google Scholar 

  73. D. García-Gudino, G. Toledo-Sanchez, Int. J. Mod. Phys. A 27, 1250101 (2012)

    Article  ADS  Google Scholar 

  74. E. Oset, A. Ramos, Nucl. Phys. A 635, 99 (1998)

    Article  ADS  Google Scholar 

  75. A. Ramos, E. Oset, C. Bennhold, Phys. Rev. Lett. 89, 252001 (2002)

    Article  ADS  Google Scholar 

  76. T. Inoue, E. Oset, M.J. Vicente Vacas, Phys. Rev. C 65, 035204 (2002)

    Article  ADS  Google Scholar 

  77. J.A. Oller, U.G. Meissner, Phys. Lett. B 500, 263 (2001)

    Article  ADS  Google Scholar 

  78. A. Ramos, E. Oset, Nucl. Phys. A 671, 481 (2000)

    Article  ADS  Google Scholar 

  79. L. Tolos, A. Ramos, E. Oset, Phys. Rev. C 74, 015203 (2006)

    Article  ADS  Google Scholar 

  80. D. Cabrera, A. Polls, A. Ramos, L. Tolos, Phys. Rev. C 80, 045201 (2009)

    Article  ADS  Google Scholar 

  81. T. Waas, N. Kaiser, W. Weise, Phys. Lett. B 379, 34 (1996)

    Article  ADS  Google Scholar 

  82. T. Waas, W. Weise, Nucl. Phys. A 625, 287 (1997)

    Article  ADS  Google Scholar 

  83. C. Garcia-Recio, J. Nieves, T. Inoue, E. Oset, Phys. Lett. B 550, 47 (2002)

    Article  ADS  Google Scholar 

  84. E. Oset, A. Ramos, Nucl. Phys. A 679, 616 (2001)

    Article  ADS  Google Scholar 

  85. M. Herrmann, B.L. Friman, W. Norenberg, Nucl. Phys. A 560, 411 (1993)

    Article  ADS  Google Scholar 

  86. G. Chanfray, P. Schuck, Nucl. Phys. A 555, 329 (1993)

    Article  ADS  Google Scholar 

  87. L. Roca, E. Oset, J. Singh, Phys. Rev. D 72, 014002 (2005)

    Article  ADS  Google Scholar 

  88. H. Nagahiro, L. Roca, E. Oset, Eur. Phys. J. A 36, 73 (2008)

    Article  ADS  Google Scholar 

  89. A. Martinez Torres, K.P. Khemchandani, E. Oset, Phys. Rev. C 77, 042203 (2008)

    Article  ADS  Google Scholar 

  90. K.P. Khemchandani, A. Martinez Torres, E. Oset, Eur. Phys. J. A 37, 233 (2008)

    Article  ADS  Google Scholar 

  91. J.A. Gomez Tejedor, E. Oset, Nucl. Phys. A 571, 667 (1994)

    Article  ADS  Google Scholar 

  92. J.A. Gomez Tejedor, E. Oset, Nucl. Phys. A 600, 413 (1996)

    Article  ADS  Google Scholar 

  93. B. Friman, in Proceedings of the APCTP Workshop on astro-hadron physics: Properties of hadrons in matter, edited by G.E. Brown, C.H. Lee, H.K. Lee, D.P. Min (World Scientific, Singapore, 1999) p. 337

  94. N. Kaiser, P.B. Siegel, W. Weise, Phys. Lett. B 362, 23 (1995)

    Article  ADS  Google Scholar 

  95. M. Doring, E. Oset, B.S. Zou, Phys. Rev. C 78, 025207 (2008)

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Departament d’Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos, Universitat de Barcelona, Martí i Franquès 1, E-08028, Barcelona, Spain

    A. Ramos

  2. Instituto de Ciencias del Espacio (IEEC/CSIC) Campus Universitat Autònoma de Barcelona, Facultat de Ciències, Torre C5, E-08193, Barcelona, Spain

    L. Tolos

  3. Frankfurt Institute for Advanced Studies (FIAS), Johann Wolfgang Goethe University, Ruth-Moufang-Str. 1, 60438, Frankfurt am Main, Germany

    L. Tolos

  4. Research Center for Nuclear Physics (RCNP), Mihogaoka 10-1, 567-0047, Ibaraki, Japan

    R. Molina

  5. Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Aptdo. 22085, E-46071, Valencia, Spain

    E. Oset

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  1. A. Ramos
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Correspondence to A. Ramos.

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Communicated by J. Wambach

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Ramos, A., Tolos, L., Molina, R. et al. The width of the ω meson in the nuclear medium. Eur. Phys. J. A 49, 148 (2013). https://doi.org/10.1140/epja/i2013-13148-x

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