@article{6cf8c02ad9bd4cd893595bfd4cd1630e,
title = "Measurement of invariant mass spectra of vector meson decaying in nuclear matter",
abstract = "The experiment E325 has been performed at KEK PS. The data taking has been completed on February 2002. We have measured the invariant mass spectrum of e+e-pairs based on the statistics 100 times larger than our previous publication[3]. On the low-mass side of ρ/ω meson, an enhancement over the known hadronic sources has been observed. The obtained ρ/ω ratio in the spectrum is smaller than the ratio in pp interaction. This suggests that ρ meson mass has been modified in nuclear matter.",
author = "M. Naruki and J. Chiba and H. En'yo and H. Funahashi and H. Hamagaki and M. Ieiri and M. Ishino and H. Kanda and M. Kitaguchi and S. Mihara and T. Miyashita and T. Murakami and R. Muto and M. Nomachi and K. Ozawa and F. Sakuma and O. Sasaki and Sato, {H. D.} and M. Sekimoto and T. Tabaru and Tanaka, {K. H.} and S. Yamada and S. Yokkaichi and Y. Yoshimura",
note = "Funding Information: Acknowledgements We would like to thank all of t,he staff members of KEK-PS, especially the beam channel group for their helpful support. This work was partly funded by the Japan Society for the Promotion of Science and a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, and Culture of Japan (Monbusho). Finally, we would like to thank the staff members of CC-J system at RIKEN.",
year = "2003",
month = jun,
day = "30",
doi = "10.1016/S0375-9474(03)01054-6",
language = "English",
volume = "721",
pages = "C297--C300",
journal = "Nuclear Physics A",
issn = "0375-9474",
publisher = "Elsevier",
}