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Ozawa K, En'yo H, Funahashi H, et al. Observation of rho/omega meson modification in nuclear matter. Phys Rev Lett. 2001;86(22):5019-22doi: 10.1103/PhysRevLett.86.5019.
Ozawa, K., En'yo, H., Funahashi, H., Kitaguchi, M., Ishino, M., Kanda, H., Mihara, S., Miyashita, T., Murakami, T., Muto, R., Naruki, M., Sakuma, F., Sato, H. D., Tabaru, T., Yamada, S., Yokkaichi, S., Yoshimura, Y., Chiba, J., Ieiri, M., Nomachi, M., Sasaki, O., Sekimoto, M., Tanaka, K. H., & Hamagaki, H. (2001). Observation of rho/omega meson modification in nuclear matter. Physical review letters, 86(22), 5019-22. https://doi.org/10.1103/PhysRevLett.86.5019
Ozawa, K, et al. "Observation of rho/omega meson modification in nuclear matter." Physical review letters vol. 86,22 (2001): 5019-22. doi: https://doi.org/10.1103/PhysRevLett.86.5019
Ozawa K, En'yo H, Funahashi H, Kitaguchi M, Ishino M, Kanda H, Mihara S, Miyashita T, Murakami T, Muto R, Naruki M, Sakuma F, Sato HD, Tabaru T, Yamada S, Yokkaichi S, Yoshimura Y, Chiba J, Ieiri M, Nomachi M, Sasaki O, Sekimoto M, Tanaka KH, Hamagaki H. Observation of rho/omega meson modification in nuclear matter. Phys Rev Lett. 2001 May 28;86(22):5019-22. doi: 10.1103/PhysRevLett.86.5019. PMID: 11384410.
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Phys Rev Lett. 2001 May 28;86(22):5019-22. doi: 10.1103/PhysRevLett.86.5019.

Observation of rho/omega meson modification in nuclear matter.

Physical review letters

K Ozawa, H En'yo, H Funahashi, M Kitaguchi, M Ishino, H Kanda, S Mihara, T Miyashita, T Murakami, R Muto, M Naruki, F Sakuma, H D Sato, T Tabaru, S Yamada, S Yokkaichi, Y Yoshimura, J Chiba, M Ieiri, M Nomachi, O Sasaki, M Sekimoto, K H Tanaka, H Hamagaki

Affiliations

  1. Department of Physics, Kyoto University, Kitashirakawa Sakyo-Ku, Kyoto 606-8502, Japan.

PMID: 11384410 DOI: 10.1103/PhysRevLett.86.5019

Abstract

We measured the invariant mass spectra of electron-positron pairs in the target rapidity region of 12-GeV p+A reactions. We have observed a significant difference in the mass spectra below the omega meson between p+C and p+Cu interactions. This difference indicates that the spectral shape of mesons is modified at normal nuclear-matter density.

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