Abstract.
Within a transport code simulation for heavy-ion collisions at bombarding energies around 1 AGeV, we demonstrate that double-differential di-electron spectra with suitable kinematical cuts are useful to isolate (i) the ρ meson peak even in case of strong broadening, and (ii) the in-medium ω decay contribution. The expected in-medium modifications of the vector meson spectral densities can thus be probed in this energy range via the di-electron channel.
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References
J. Friese for the HADES collaboration, Prog. Part. Nucl. Phys. 42, 235 (1999)
I. Fröhlich et al., HADES, Eur. Phys. J. A 31, 831 (2007); P. Salabura et al., HADES, Nucl. Phys. A 749, 150 (2005)
R. Rapp, J. Wambach, Adv. Nucl. Phys. 25, 1 (2000)
F. Karsch, E. Laermann, A. Peikert, Nucl. Phys. B 605, 579 (2001)
G.E. Brown, M. Rho, Phys. Rev. Lett. 66, 2720 (1991); Phys. Rep. 363, 82 (2002) [nucl-th/0206021]
T. Hatsuda, S.H. Lee, H. Shiomi, Phys. Rev. C 52, 3364 (1995); T. Hatsuda, S.H. Lee, Phys. Rev. C 46, R34 (1992)
E. Marco, W. Weise, Phys. Lett. B 482, 87 (2000); F. Klingl, W. Weise, Eur. Phys. J. A 4, 225 (1999)
S. Leupold, Phys. Rev. C 64, 015202 (2001); S. Leupold, W. Peters, U. Mosel, Nucl. Phys. A 628, 311 (1998)
X. Jin, D. Leinweber, Phys. Rev. C 52, 3344 (1995)
A.K. Dutt-Mazumder, R. Hofmann, M. Pospelov, Phys. Rev. C 63, 015204 (2000)
R. Hofmann, Th. Gutsche, A. Faessler, Eur. Phys. J. C 17, 651 (2001)
R.A. Schneider, W. Weise, Phys. Lett. B 515, 89 (2001)
M. Lutz, Gy. Wolf, B. Friman, Nucl. Phys. A 706, 431 (2002)
S. Zschocke, O.P. Pavlenko, B. Kämpfer, Eur. Phys. J. A 15, 529 (2002)
S. Zschocke, O.P. Pavlenko, B. Kämpfer, Phys. Lett. B 562, 57 (2003)
W. Cassing, E.L. Bratkovskaya, Phys. Rep. 308, 65 (1999)
B. Kämpfer, O.P. Pavlenko, Eur. Phys. J. A 10, 101 (2001)
C. Gale, J. Kapusta, Phys. Rev. C 35, 2107 (1987); P. Koch, Z. Phys. C 57, 283 (1993)
Gy. Wolf, Heavy Ion Phys. 5, 281 (1997); Gy. Wolf, G. Batko, W. Cassing, U. Mosel, K. Niita, M. Schäfer, Nucl. Phys. A 517, 615 (1990); Gy. Wolf, W. Cassing, U. Mosel, Nucl. Phys. A 552, 549 (1993); Gy. Wolf, B. Friman, M. Soyer, Nucl. Phys. A 640, 129 (1998)
M. Thomere, C. Hartnack, G. Wolf, J. Aichelin, Phys. Rev. C 75 064902 (2007)
Yu.B. Ivanov, J. Knoll, D.N. Voskresensky, Nucl. Phys. A 672, 313 (2000)
E.L. Bratkovskaya, Nucl. Phys. A 696, 761 (2001); H.W. Barz, B. Kämpfer, Gy. Wolf, M. Zetenyi [nucl-th/0605036]
Y.S. Golubeva, L.A. Kondratyuk, W. Cassing, Nucl. Phys. A 625, 832 (1997); W. Cassing, Y.S. Golubeva, A.S. Iljinov, L.A. Kondratyuk, Phys. Lett. B 396, 26 (1997)
G. Agakichiev et al., HADES, Phys. Rev. Lett. 98, 052302 (2007)
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Wolf, G., Kämpfer, B. & Pavlenko, O. Probing in-medium vector meson decays by double-differential di-electron spectra in heavy-ion collisions at SIS energies. Eur. Phys. J. Spec. Top. 155, 223–230 (2008). https://doi.org/10.1140/epjst/e2008-00604-4
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DOI: https://doi.org/10.1140/epjst/e2008-00604-4