Light vector mesons in the nuclear medium

M. H. Wood; R. Nasseripour; D. P. Weygand; C. Djalali; C. Tur; U. Mosel; P. Muehlich; G. Adams; M. J. Amaryan; P. Ambrozewicz; M. Anghinolfi; G. Asryan; H. Avakian; H. Bagdasaryan; N. Baillie; J. P. Ball; N. A. Baltzell; S. Barrow; M. Battaglieri; I. Bedlinskiy; M. Bektasoglu; M. Bellis; N. Benmouna; B. L. Berman; A. S. Biselli; L. Blaszczyk; S. Bouchigny; S. Boiarinov; R. Bradford; D. Branford; W. J. Briscoe; W. K. Brooks; V. D. Burkert; C. Butuceanu; J. R. Calarco; S. L. Careccia; D. S. Carman; B. Carnahan; L. Casey; S. Chen; L. Cheng; P. L. Cole; P. Collins; P. Coltharp; D. Crabb; H. Crannell; V. Crede; J. P. Cummings; N. Dashyan; R. De Vita; E. De Sanctis; P. V. Degtyarenko; H. Denizli; L. Dennis; A. Deur; K. V. Dharmawardane; R. Dickson; G. E. Dodge; D. Doughty; Michael Dugger; S. Dytman; O. P. Dzyubak; H. Egiyan; K. S. Egiyan; L. El Fassi; L. Elouadrhiri; P. Eugenio; G. Fedotov; G. Feldman; R. J. Feuerbach; A. Fradi; H. Funsten; M. Garçon; G. Gavalian; G. P. Gilfoyle; K. L. Giovanetti; F. X. Girod; J. T. Goetz; C. I O Gordon; R. W. Gothe; K. A. Griffioen; M. Guidal; N. Guler; L. Guo; V. Gyurjyan; C. Hadjidakis; K. Hafidi; H. Hakobyan; R. S. Hakobyan; C. Hanretty; J. Hardie; N. Hassall; F. W. Hersman; K. Hicks; I. Hleiqawi; M. Holtrop; C. E. Hyde-Wright; Y. Ilieva; D. G. Ireland; B. S. Ishkhanov; E. L. Isupov; M. M. Ito; D. Jenkins; H. S. Jo; J. R. Johnstone; K. Joo; H. G. Juengst; N. Kalantarians; J. D. Kellie; M. Khandaker; P. Khetarpal; W. Kim; A. Klein; F. J. Klein; A. V. Klimenko; M. Kossov; Z. Krahn; L. H. Kramer; V. Kubarovsky; J. Kuhn; S. E. Kuhn; S. V. Kuleshov; J. Lachniet; J. M. Laget; J. Langheinrich; D. Lawrence; Ji Li; K. Livingston; H. Y. Lu; M. MacCormick; N. Markov; P. Mattione; S. McAleer; B. McKinnon; J. W C McNabb; B. A. Mecking; S. Mehrabyan; J. J. Melone; M. D. Mestayer; C. A. Meyer; T. Mibe; K. Mikhailov; R. Minehart; M. Mirazita; R. Miskimen; V. Mokeev; K. Moriya; S. A. Morrow; M. Moteabbed; J. Mueller; E. Munevar; G. S. Mutchler; P. Nadel-Turonski; S. Niccolai; G. Niculescu; I. Niculescu; B. B. Niczyporuk; M. R. Niroula; R. A. Niyazov; M. Nozar; M. Osipenko; A. I. Ostrovidov; K. Park; E. Pasyuk; C. Paterson; S. Anefalos Pereira; J. Pierce; N. Pivnyuk; D. Pocanic; O. Pogorelko; S. Pozdniakov; B. M. Preedom; J. W. Price; Y. Prok; D. Protopopescu; B. A. Raue; G. Riccardi; G. Ricco; M. Ripani; Barry Ritchie; F. Ronchetti; G. Rosner; P. Rossi; F. Sabatié; J. Salamanca; C. Salgado; J. P. Santoro; V. Sapunenko; R. A. Schumacher; V. S. Serov; Y. G. Sharabian; D. Sharov; N. V. Shvedunov; E. S. Smith; L. C. Smith; D. I. Sober; D. Sokhan; A. Stavinsky; S. Stepanyan; S. S. Stepanyan; B. E. Stokes; P. Stoler; I. I. Strakovsky; S. Strauch; M. Taiuti; D. J. Tedeschi; A. Tkabladze; S. Tkachenko; L. Todor; M. Ungaro; M. F. Vineyard; A. V. Vlassov; D. P. Watts; L. B. Weinstein; M. Williams; E. Wolin; A. Yegneswaran; L. Zana; B. Zhang; J. Zhang; B. Zhao; Z. W. Zhao

doi:10.1103/PhysRevC.78.015201

Light vector mesons in the nuclear medium

M. H. Wood, R. Nasseripour, D. P. Weygand, C. Djalali, C. Tur, U. Mosel, P. Muehlich, G. Adams, M. J. Amaryan, P. Ambrozewicz, M. Anghinolfi, G. Asryan, H. Avakian, H. Bagdasaryan, N. Baillie, J. P. Ball, N. A. Baltzell, S. Barrow, M. Battaglieri, I. BedlinskiyM. Bektasoglu, M. Bellis, N. Benmouna, B. L. Berman, A. S. Biselli, L. Blaszczyk, S. Bouchigny, S. Boiarinov, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. Burkert, C. Butuceanu, J. R. Calarco, S. L. Careccia, D. S. Carman, B. Carnahan, L. Casey, S. Chen, L. Cheng, P. L. Cole, P. Collins, P. Coltharp, D. Crabb, H. Crannell, V. Crede, J. P. Cummings, N. Dashyan, R. De Vita, E. De Sanctis, P. V. Degtyarenko, H. Denizli, L. Dennis, A. Deur, K. V. Dharmawardane, R. Dickson, G. E. Dodge, D. Doughty, Michael Dugger, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. El Fassi, L. Elouadrhiri, P. Eugenio, G. Fedotov, G. Feldman, R. J. Feuerbach, A. Fradi, H. Funsten, M. Garçon, G. Gavalian, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, C. I O Gordon, R. W. Gothe, K. A. Griffioen, M. Guidal, N. Guler, L. Guo, V. Gyurjyan, C. Hadjidakis, K. Hafidi, H. Hakobyan, R. S. Hakobyan, C. Hanretty, J. Hardie, N. Hassall, F. W. Hersman, K. Hicks, I. Hleiqawi, M. Holtrop, C. E. Hyde-Wright, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, E. L. Isupov, M. M. Ito, D. Jenkins, H. S. Jo, J. R. Johnstone, K. Joo, H. G. Juengst, N. Kalantarians, J. D. Kellie, M. Khandaker, P. Khetarpal, W. Kim, A. Klein, F. J. Klein, A. V. Klimenko, M. Kossov, Z. Krahn, L. H. Kramer, V. Kubarovsky, J. Kuhn, S. E. Kuhn, S. V. Kuleshov, J. Lachniet, J. M. Laget, J. Langheinrich, D. Lawrence, Ji Li, K. Livingston, H. Y. Lu, M. MacCormick, N. Markov, P. Mattione, S. McAleer, B. McKinnon, J. W C McNabb, B. A. Mecking, S. Mehrabyan, J. J. Melone, M. D. Mestayer, C. A. Meyer, T. Mibe, K. Mikhailov, R. Minehart, M. Mirazita, R. Miskimen, V. Mokeev, K. Moriya, S. A. Morrow, M. Moteabbed, J. Mueller, E. Munevar, G. S. Mutchler, P. Nadel-Turonski, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, M. R. Niroula, R. A. Niyazov, M. Nozar, M. Osipenko, A. I. Ostrovidov, K. Park, E. Pasyuk, C. Paterson, S. Anefalos Pereira, J. Pierce, N. Pivnyuk, D. Pocanic, O. Pogorelko, S. Pozdniakov, B. M. Preedom, J. W. Price, Y. Prok, D. Protopopescu, B. A. Raue, G. Riccardi, G. Ricco, M. Ripani, Barry Ritchie, F. Ronchetti, G. Rosner, P. Rossi, F. Sabatié, J. Salamanca, C. Salgado, J. P. Santoro, V. Sapunenko, R. A. Schumacher, V. S. Serov, Y. G. Sharabian, D. Sharov, N. V. Shvedunov, E. S. Smith, L. C. Smith, D. I. Sober, D. Sokhan, A. Stavinsky, S. Stepanyan, S. S. Stepanyan, B. E. Stokes, P. Stoler, I. I. Strakovsky, S. Strauch, M. Taiuti, D. J. Tedeschi, A. Tkabladze, S. Tkachenko, L. Todor, M. Ungaro, M. F. Vineyard, A. V. Vlassov, D. P. Watts, L. B. Weinstein, M. Williams, E. Wolin, A. Yegneswaran, L. Zana, B. Zhang, J. Zhang, B. Zhao, Z. W. Zhao

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

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	https://doi.org/10.1103/PhysRevC.78.015201
State	Published - Jul 8 2008

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevC.78.015201

Cite this

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., ... Zhao, Z. W. (2008). Light vector mesons in the nuclear medium. Physical Review C - Nuclear Physics, 78(1), [015201]. https://doi.org/10.1103/PhysRevC.78.015201

Wood, MH, Nasseripour, R, Weygand, DP, Djalali, C, Tur, C, Mosel, U, Muehlich, P, Adams, G, Amaryan, MJ, Ambrozewicz, P, Anghinolfi, M, Asryan, G, Avakian, H, Bagdasaryan, H, Baillie, N, Ball, JP, Baltzell, NA, Barrow, S, Battaglieri, M, Bedlinskiy, I, Bektasoglu, M, Bellis, M, Benmouna, N, Berman, BL, Biselli, AS, Blaszczyk, L, Bouchigny, S, Boiarinov, S, Bradford, R, Branford, D, Briscoe, WJ, Brooks, WK, Burkert, VD, Butuceanu, C, Calarco, JR, Careccia, SL, Carman, DS, Carnahan, B, Casey, L, Chen, S, Cheng, L, Cole, PL, Collins, P, Coltharp, P, Crabb, D, Crannell, H, Crede, V, Cummings, JP, Dashyan, N, De Vita, R, De Sanctis, E, Degtyarenko, PV, Denizli, H, Dennis, L, Deur, A, Dharmawardane, KV, Dickson, R, Dodge, GE, Doughty, D, Dugger, M, Dytman, S, Dzyubak, OP, Egiyan, H, Egiyan, KS, El Fassi, L, Elouadrhiri, L, Eugenio, P, Fedotov, G, Feldman, G, Feuerbach, RJ, Fradi, A, Funsten, H, Garçon, M, Gavalian, G, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Goetz, JT, Gordon, CIO, Gothe, RW, Griffioen, KA, Guidal, M, Guler, N, Guo, L, Gyurjyan, V, Hadjidakis, C, Hafidi, K, Hakobyan, H, Hakobyan, RS, Hanretty, C, Hardie, J, Hassall, N, Hersman, FW, Hicks, K, Hleiqawi, I, Holtrop, M, Hyde-Wright, CE, Ilieva, Y, Ireland, DG, Ishkhanov, BS, Isupov, EL, Ito, MM, Jenkins, D, Jo, HS, Johnstone, JR, Joo, K, Juengst, HG, Kalantarians, N, Kellie, JD, Khandaker, M, Khetarpal, P, Kim, W, Klein, A, Klein, FJ, Klimenko, AV, Kossov, M, Krahn, Z, Kramer, LH, Kubarovsky, V, Kuhn, J, Kuhn, SE, Kuleshov, SV, Lachniet, J, Laget, JM, Langheinrich, J, Lawrence, D, Li, J, Livingston, K, Lu, HY, MacCormick, M, Markov, N, Mattione, P, McAleer, S, McKinnon, B, McNabb, JWC, Mecking, BA, Mehrabyan, S, Melone, JJ, Mestayer, MD, Meyer, CA, Mibe, T, Mikhailov, K, Minehart, R, Mirazita, M, Miskimen, R, Mokeev, V, Moriya, K, Morrow, SA, Moteabbed, M, Mueller, J, Munevar, E, Mutchler, GS, Nadel-Turonski, P, Niccolai, S, Niculescu, G, Niculescu, I, Niczyporuk, BB, Niroula, MR, Niyazov, RA, Nozar, M, Osipenko, M, Ostrovidov, AI, Park, K, Pasyuk, E, Paterson, C, Pereira, SA, Pierce, J, Pivnyuk, N, Pocanic, D, Pogorelko, O, Pozdniakov, S, Preedom, BM, Price, JW, Prok, Y, Protopopescu, D, Raue, BA, Riccardi, G, Ricco, G, Ripani, M, Ritchie, B, Ronchetti, F, Rosner, G, Rossi, P, Sabatié, F, Salamanca, J, Salgado, C, Santoro, JP, Sapunenko, V, Schumacher, RA, Serov, VS, Sharabian, YG, Sharov, D, Shvedunov, NV, Smith, ES, Smith, LC, Sober, DI, Sokhan, D, Stavinsky, A, Stepanyan, S, Stepanyan, SS, Stokes, BE, Stoler, P, Strakovsky, II, Strauch, S, Taiuti, M, Tedeschi, DJ, Tkabladze, A, Tkachenko, S, Todor, L, Ungaro, M, Vineyard, MF, Vlassov, AV, Watts, DP, Weinstein, LB, Williams, M, Wolin, E, Yegneswaran, A, Zana, L, Zhang, B, Zhang, J, Zhao, B & Zhao, ZW 2008, 'Light vector mesons in the nuclear medium', Physical Review C - Nuclear Physics, vol. 78, no. 1, 015201. https://doi.org/10.1103/PhysRevC.78.015201

@article{bf00f40460634812858d427156fe4094,

title = "Light vector mesons in the nuclear medium",

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.",

author = "Wood, {M. H.} and R. Nasseripour and Weygand, {D. P.} and C. Djalali and C. Tur and U. Mosel and P. Muehlich and G. Adams and Amaryan, {M. J.} and P. Ambrozewicz and M. Anghinolfi and G. Asryan and H. Avakian and H. Bagdasaryan and N. Baillie and Ball, {J. P.} and Baltzell, {N. A.} and S. Barrow and M. Battaglieri and I. Bedlinskiy and M. Bektasoglu and M. Bellis and N. Benmouna and Berman, {B. L.} and Biselli, {A. S.} and L. Blaszczyk and S. Bouchigny and S. Boiarinov and R. Bradford and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and Burkert, {V. D.} and C. Butuceanu and Calarco, {J. R.} and Careccia, {S. L.} and Carman, {D. S.} and B. Carnahan and L. Casey and S. Chen and L. Cheng and Cole, {P. L.} and P. Collins and P. Coltharp and D. Crabb and H. Crannell and V. Crede and Cummings, {J. P.} and N. Dashyan and {De Vita}, R. and {De Sanctis}, E. and Degtyarenko, {P. V.} and H. Denizli and L. Dennis and A. Deur and Dharmawardane, {K. V.} and R. Dickson and Dodge, {G. E.} and D. Doughty and Michael Dugger and S. Dytman and Dzyubak, {O. P.} and H. Egiyan and Egiyan, {K. S.} and {El Fassi}, L. and L. Elouadrhiri and P. Eugenio and G. Fedotov and G. Feldman and Feuerbach, {R. J.} and A. Fradi and H. Funsten and M. Gar{\c c}on and G. Gavalian and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and Girod, {F. X.} and Goetz, {J. T.} and Gordon, {C. I O} and Gothe, {R. W.} and Griffioen, {K. A.} and M. Guidal and N. Guler and L. Guo and V. Gyurjyan and C. Hadjidakis and K. Hafidi and H. Hakobyan and Hakobyan, {R. S.} and C. Hanretty and J. Hardie and N. Hassall and Hersman, {F. W.} and K. Hicks and I. Hleiqawi and M. Holtrop and Hyde-Wright, {C. E.} and Y. Ilieva and Ireland, {D. G.} and Ishkhanov, {B. S.} and Isupov, {E. L.} and Ito, {M. M.} and D. Jenkins and Jo, {H. S.} and Johnstone, {J. R.} and K. Joo and Juengst, {H. G.} and N. Kalantarians and Kellie, {J. D.} and M. Khandaker and P. Khetarpal and W. Kim and A. Klein and Klein, {F. J.} and Klimenko, {A. V.} and M. Kossov and Z. Krahn and Kramer, {L. H.} and V. Kubarovsky and J. Kuhn and Kuhn, {S. E.} and Kuleshov, {S. V.} and J. Lachniet and Laget, {J. M.} and J. Langheinrich and D. Lawrence and Ji Li and K. Livingston and Lu, {H. Y.} and M. MacCormick and N. Markov and P. Mattione and S. McAleer and B. McKinnon and McNabb, {J. W C} and Mecking, {B. A.} and S. Mehrabyan and Melone, {J. J.} and Mestayer, {M. D.} and Meyer, {C. A.} and T. Mibe and K. Mikhailov and R. Minehart and M. Mirazita and R. Miskimen and V. Mokeev and K. Moriya and Morrow, {S. A.} and M. Moteabbed and J. Mueller and E. Munevar and Mutchler, {G. S.} and P. Nadel-Turonski and S. Niccolai and G. Niculescu and I. Niculescu and Niczyporuk, {B. B.} and Niroula, {M. R.} and Niyazov, {R. A.} and M. Nozar and M. Osipenko and Ostrovidov, {A. I.} and K. Park and E. Pasyuk and C. Paterson and Pereira, {S. Anefalos} and J. Pierce and N. Pivnyuk and D. Pocanic and O. Pogorelko and S. Pozdniakov and Preedom, {B. M.} and Price, {J. W.} and Y. Prok and D. Protopopescu and Raue, {B. A.} and G. Riccardi and G. Ricco and M. Ripani and Barry Ritchie and F. Ronchetti and G. Rosner and P. Rossi and F. Sabati{\'e} and J. Salamanca and C. Salgado and Santoro, {J. P.} and V. Sapunenko and Schumacher, {R. A.} and Serov, {V. S.} and Sharabian, {Y. G.} and D. Sharov and Shvedunov, {N. V.} and Smith, {E. S.} and Smith, {L. C.} and Sober, {D. I.} and D. Sokhan and A. Stavinsky and S. Stepanyan and Stepanyan, {S. S.} and Stokes, {B. E.} and P. Stoler and Strakovsky, {I. I.} and S. Strauch and M. Taiuti and Tedeschi, {D. J.} and A. Tkabladze and S. Tkachenko and L. Todor and M. Ungaro and Vineyard, {M. F.} and Vlassov, {A. V.} and Watts, {D. P.} and Weinstein, {L. B.} and M. Williams and E. Wolin and A. Yegneswaran and L. Zana and B. Zhang and J. Zhang and B. Zhao and Zhao, {Z. W.}",

year = "2008",

month = jul,

day = "8",

doi = "10.1103/PhysRevC.78.015201",

language = "English (US)",

volume = "78",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "1",

}

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.

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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 -

Light vector mesons in the nuclear medium

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