Abstract
The light vector mesons (ρ,ω, and ) were produced in deuterium, carbon, titanium, and iron targets in a search for possible in-medium modifications to the properties of the ρ meson at normal nuclear densities and zero temperature. The vector mesons were detected with the CEBAF Large Acceptance Spectrometer (CLAS) via their decays to e+e-. The rare leptonic decay was chosen to reduce final-state interactions. A combinatorial background was subtracted from the invariant mass spectra using a well-established event-mixing technique. The ρ-meson mass spectrum was extracted after the ω and signals were removed in a nearly model-independent way. Comparisons were made between the ρ mass spectra from the heavy targets (A>2) with the mass spectrum extracted from the deuterium target. With respect to the ρ-meson mass, we obtain a small shift compatible with zero. Also, we measure widths consistent with standard nuclear many-body effects such as collisional broadening and Fermi motion.
| Original language | English (US) |
|---|---|
| Article number | 015201 |
| Journal | Physical Review C - Nuclear Physics |
| Volume | 78 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jul 8 2008 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Light vector mesons in the nuclear medium. / Wood, M. H.; Nasseripour, R.; Weygand, D. P.; Djalali, C.; Tur, C.; Mosel, U.; Muehlich, P.; Adams, G.; Amaryan, M. J.; Ambrozewicz, P.; Anghinolfi, M.; Asryan, G.; Avakian, H.; Bagdasaryan, H.; Baillie, N.; Ball, J. P.; Baltzell, N. A.; Barrow, S.; Battaglieri, M.; Bedlinskiy, I.; Bektasoglu, M.; Bellis, M.; Benmouna, N.; Berman, B. L.; Biselli, A. S.; Blaszczyk, L.; Bouchigny, S.; Boiarinov, S.; Bradford, R.; Branford, D.; Briscoe, W. J.; Brooks, W. K.; Burkert, V. D.; Butuceanu, C.; Calarco, J. R.; Careccia, S. L.; Carman, D. S.; Carnahan, B.; Casey, L.; Chen, S.; Cheng, L.; Cole, P. L.; Collins, P.; Coltharp, P.; Crabb, D.; Crannell, H.; Crede, V.; Cummings, J. P.; Dashyan, N.; De Vita, R.; De Sanctis, E.; Degtyarenko, P. V.; Denizli, H.; Dennis, L.; Deur, A.; Dharmawardane, K. V.; Dickson, R.; Dodge, G. E.; Doughty, D.; Dugger, Michael; Dytman, S.; Dzyubak, O. P.; Egiyan, H.; Egiyan, K. S.; El Fassi, L.; Elouadrhiri, L.; Eugenio, P.; Fedotov, G.; Feldman, G.; Feuerbach, R. J.; Fradi, A.; Funsten, H.; Garçon, M.; Gavalian, G.; Gilfoyle, G. P.; Giovanetti, K. L.; Girod, F. X.; Goetz, J. T.; Gordon, C. I O; Gothe, R. W.; Griffioen, K. A.; Guidal, M.; Guler, N.; Guo, L.; Gyurjyan, V.; Hadjidakis, C.; Hafidi, K.; Hakobyan, H.; Hakobyan, R. S.; Hanretty, C.; Hardie, J.; Hassall, N.; Hersman, F. W.; Hicks, K.; Hleiqawi, I.; Holtrop, M.; Hyde-Wright, C. E.; Ilieva, Y.; Ireland, D. G.; Ishkhanov, B. S.; Isupov, E. L.; Ito, M. M.; Jenkins, D.; Jo, H. S.; Johnstone, J. R.; Joo, K.; Juengst, H. G.; Kalantarians, N.; Kellie, J. D.; Khandaker, M.; Khetarpal, P.; Kim, W.; Klein, A.; Klein, F. J.; Klimenko, A. V.; Kossov, M.; Krahn, Z.; Kramer, L. H.; Kubarovsky, V.; Kuhn, J.; Kuhn, S. E.; Kuleshov, S. V.; Lachniet, J.; Laget, J. M.; Langheinrich, J.; Lawrence, D.; Li, Ji; Livingston, K.; Lu, H. Y.; MacCormick, M.; Markov, N.; Mattione, P.; McAleer, S.; McKinnon, B.; McNabb, J. W C; Mecking, B. A.; Mehrabyan, S.; Melone, J. J.; Mestayer, M. D.; Meyer, C. A.; Mibe, T.; Mikhailov, K.; Minehart, R.; Mirazita, M.; Miskimen, R.; Mokeev, V.; Moriya, K.; Morrow, S. A.; Moteabbed, M.; Mueller, J.; Munevar, E.; Mutchler, G. S.; Nadel-Turonski, P.; Niccolai, S.; Niculescu, G.; Niculescu, I.; Niczyporuk, B. B.; Niroula, M. R.; Niyazov, R. A.; Nozar, M.; Osipenko, M.; Ostrovidov, A. I.; Park, K.; Pasyuk, E.; Paterson, C.; Pereira, S. Anefalos; Pierce, J.; Pivnyuk, N.; Pocanic, D.; Pogorelko, O.; Pozdniakov, S.; Preedom, B. M.; Price, J. W.; Prok, Y.; Protopopescu, D.; Raue, B. A.; Riccardi, G.; Ricco, G.; Ripani, M.; Ritchie, Barry; Ronchetti, F.; Rosner, G.; Rossi, P.; Sabatié, F.; Salamanca, J.; Salgado, C.; Santoro, J. P.; Sapunenko, V.; Schumacher, R. A.; Serov, V. S.; Sharabian, Y. G.; Sharov, D.; Shvedunov, N. V.; Smith, E. S.; Smith, L. C.; Sober, D. I.; Sokhan, D.; Stavinsky, A.; Stepanyan, S.; Stepanyan, S. S.; Stokes, B. E.; Stoler, P.; Strakovsky, I. I.; Strauch, S.; Taiuti, M.; Tedeschi, D. J.; Tkabladze, A.; Tkachenko, S.; Todor, L.; Ungaro, M.; Vineyard, M. F.; Vlassov, A. V.; Watts, D. P.; Weinstein, L. B.; Williams, M.; Wolin, E.; Yegneswaran, A.; Zana, L.; Zhang, B.; Zhang, J.; Zhao, B.; Zhao, Z. W.
In: Physical Review C - Nuclear Physics, Vol. 78, No. 1, 015201, 08.07.2008.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Light vector mesons in the nuclear medium
AU - Wood, M. H.
AU - Nasseripour, R.
AU - Weygand, D. P.
AU - Djalali, C.
AU - Tur, C.
AU - Mosel, U.
AU - Muehlich, P.
AU - Adams, G.
AU - Amaryan, M. J.
AU - Ambrozewicz, P.
AU - Anghinolfi, M.
AU - Asryan, G.
AU - Avakian, H.
AU - Bagdasaryan, H.
AU - Baillie, N.
AU - Ball, J. P.
AU - Baltzell, N. A.
AU - Barrow, S.
AU - Battaglieri, M.
AU - Bedlinskiy, I.
AU - Bektasoglu, M.
AU - Bellis, M.
AU - Benmouna, N.
AU - Berman, B. L.
AU - Biselli, A. S.
AU - Blaszczyk, L.
AU - Bouchigny, S.
AU - Boiarinov, S.
AU - Bradford, R.
AU - Branford, D.
AU - Briscoe, W. J.
AU - Brooks, W. K.
AU - Burkert, V. D.
AU - Butuceanu, C.
AU - Calarco, J. R.
AU - Careccia, S. L.
AU - Carman, D. S.
AU - Carnahan, B.
AU - Casey, L.
AU - Chen, S.
AU - Cheng, L.
AU - Cole, P. L.
AU - Collins, P.
AU - Coltharp, P.
AU - Crabb, D.
AU - Crannell, H.
AU - Crede, V.
AU - Cummings, J. P.
AU - Dashyan, N.
AU - De Vita, R.
AU - De Sanctis, E.
AU - Degtyarenko, P. V.
AU - Denizli, H.
AU - Dennis, L.
AU - Deur, A.
AU - Dharmawardane, K. V.
AU - Dickson, R.
AU - Dodge, G. E.
AU - Doughty, D.
AU - Dugger, Michael
AU - Dytman, S.
AU - Dzyubak, O. P.
AU - Egiyan, H.
AU - Egiyan, K. S.
AU - El Fassi, L.
AU - Elouadrhiri, L.
AU - Eugenio, P.
AU - Fedotov, G.
AU - Feldman, G.
AU - Feuerbach, R. J.
AU - Fradi, A.
AU - Funsten, H.
AU - Garçon, M.
AU - Gavalian, G.
AU - Gilfoyle, G. P.
AU - Giovanetti, K. L.
AU - Girod, F. X.
AU - Goetz, J. T.
AU - Gordon, C. I O
AU - Gothe, R. W.
AU - Griffioen, K. A.
AU - Guidal, M.
AU - Guler, N.
AU - Guo, L.
AU - Gyurjyan, V.
AU - Hadjidakis, C.
AU - Hafidi, K.
AU - Hakobyan, H.
AU - Hakobyan, R. S.
AU - Hanretty, C.
AU - Hardie, J.
AU - Hassall, N.
AU - Hersman, F. W.
AU - Hicks, K.
AU - Hleiqawi, I.
AU - Holtrop, M.
AU - Hyde-Wright, C. E.
AU - Ilieva, Y.
AU - Ireland, D. G.
AU - Ishkhanov, B. S.
AU - Isupov, E. L.
AU - Ito, M. M.
AU - Jenkins, D.
AU - Jo, H. S.
AU - Johnstone, J. R.
AU - Joo, K.
AU - Juengst, H. G.
AU - Kalantarians, N.
AU - Kellie, J. D.
AU - Khandaker, M.
AU - Khetarpal, P.
AU - Kim, W.
AU - Klein, A.
AU - Klein, F. J.
AU - Klimenko, A. V.
AU - Kossov, M.
AU - Krahn, Z.
AU - Kramer, L. H.
AU - Kubarovsky, V.
AU - Kuhn, J.
AU - Kuhn, S. E.
AU - Kuleshov, S. V.
AU - Lachniet, J.
AU - Laget, J. M.
AU - Langheinrich, J.
AU - Lawrence, D.
AU - Li, Ji
AU - Livingston, K.
AU - Lu, H. Y.
AU - MacCormick, M.
AU - Markov, N.
AU - Mattione, P.
AU - McAleer, S.
AU - McKinnon, B.
AU - McNabb, J. W C
AU - Mecking, B. A.
AU - Mehrabyan, S.
AU - Melone, J. J.
AU - Mestayer, M. D.
AU - Meyer, C. A.
AU - Mibe, T.
AU - Mikhailov, K.
AU - Minehart, R.
AU - Mirazita, M.
AU - Miskimen, R.
AU - Mokeev, V.
AU - Moriya, K.
AU - Morrow, S. A.
AU - Moteabbed, M.
AU - Mueller, J.
AU - Munevar, E.
AU - Mutchler, G. S.
AU - Nadel-Turonski, P.
AU - Niccolai, S.
AU - Niculescu, G.
AU - Niculescu, I.
AU - Niczyporuk, B. B.
AU - Niroula, M. R.
AU - Niyazov, R. A.
AU - Nozar, M.
AU - Osipenko, M.
AU - Ostrovidov, A. I.
AU - Park, K.
AU - Pasyuk, E.
AU - Paterson, C.
AU - Pereira, S. Anefalos
AU - Pierce, J.
AU - Pivnyuk, N.
AU - Pocanic, D.
AU - Pogorelko, O.
AU - Pozdniakov, S.
AU - Preedom, B. M.
AU - Price, J. W.
AU - Prok, Y.
AU - Protopopescu, D.
AU - Raue, B. A.
AU - Riccardi, G.
AU - Ricco, G.
AU - Ripani, M.
AU - Ritchie, Barry
AU - Ronchetti, F.
AU - Rosner, G.
AU - Rossi, P.
AU - Sabatié, F.
AU - Salamanca, J.
AU - Salgado, C.
AU - Santoro, J. P.
AU - Sapunenko, V.
AU - Schumacher, R. A.
AU - Serov, V. S.
AU - Sharabian, Y. G.
AU - Sharov, D.
AU - Shvedunov, N. V.
AU - Smith, E. S.
AU - Smith, L. C.
AU - Sober, D. I.
AU - Sokhan, D.
AU - Stavinsky, A.
AU - Stepanyan, S.
AU - Stepanyan, S. S.
AU - Stokes, B. E.
AU - Stoler, P.
AU - Strakovsky, I. I.
AU - Strauch, S.
AU - Taiuti, M.
AU - Tedeschi, D. J.
AU - Tkabladze, A.
AU - Tkachenko, S.
AU - Todor, L.
AU - Ungaro, M.
AU - Vineyard, M. F.
AU - Vlassov, A. V.
AU - Watts, D. P.
AU - Weinstein, L. B.
AU - Williams, M.
AU - Wolin, E.
AU - Yegneswaran, A.
AU - Zana, L.
AU - Zhang, B.
AU - Zhang, J.
AU - Zhao, B.
AU - Zhao, Z. W.
PY - 2008/7/8
Y1 - 2008/7/8
N2 - The light vector mesons (ρ,ω, and ) were produced in deuterium, carbon, titanium, and iron targets in a search for possible in-medium modifications to the properties of the ρ meson at normal nuclear densities and zero temperature. The vector mesons were detected with the CEBAF Large Acceptance Spectrometer (CLAS) via their decays to e+e-. The rare leptonic decay was chosen to reduce final-state interactions. A combinatorial background was subtracted from the invariant mass spectra using a well-established event-mixing technique. The ρ-meson mass spectrum was extracted after the ω and signals were removed in a nearly model-independent way. Comparisons were made between the ρ mass spectra from the heavy targets (A>2) with the mass spectrum extracted from the deuterium target. With respect to the ρ-meson mass, we obtain a small shift compatible with zero. Also, we measure widths consistent with standard nuclear many-body effects such as collisional broadening and Fermi motion.
AB - The light vector mesons (ρ,ω, and ) were produced in deuterium, carbon, titanium, and iron targets in a search for possible in-medium modifications to the properties of the ρ meson at normal nuclear densities and zero temperature. The vector mesons were detected with the CEBAF Large Acceptance Spectrometer (CLAS) via their decays to e+e-. The rare leptonic decay was chosen to reduce final-state interactions. A combinatorial background was subtracted from the invariant mass spectra using a well-established event-mixing technique. The ρ-meson mass spectrum was extracted after the ω and signals were removed in a nearly model-independent way. Comparisons were made between the ρ mass spectra from the heavy targets (A>2) with the mass spectrum extracted from the deuterium target. With respect to the ρ-meson mass, we obtain a small shift compatible with zero. Also, we measure widths consistent with standard nuclear many-body effects such as collisional broadening and Fermi motion.
UR - http://www.scopus.com/inward/record.url?scp=47149118774&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47149118774&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.78.015201
DO - 10.1103/PhysRevC.78.015201
M3 - Article
AN - SCOPUS:47149118774
VL - 78
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 1
M1 - 015201
ER -