Light vector mesons in the nuclear medium

被引：61

作者：

Wood, M. H.

Nasseripour, R. ^{[17
]}

Weygand, D. P. ^{[1
,2
]}

Djalali, C. ^{[1
]}

Tur, C. ^{[1
]}

Mosel, U. ^{[3
]}

Muehlich, P. ^{[3
]}

Adams, G. ^{[34
]}

Amaryan, M. J. ^{[32
]}

Ambrozewicz, P. ^{[15
]}

Anghinolfi, M. ^{[21
]}

Asryan, G. ^{[41
]}

Avakian, H. ^{[2
]}

Bagdasaryan, H. ^{[32
,41
]}

Baillie, N. ^{[40
]}

Ball, J. P. ^{[5
]}

Baltzell, N. A. ^{[1
]}

Barrow, S. ^{[16
]}

Battaglieri, M. ^{[21
]}

Bedlinskiy, I. ^{[23
]}

Bektasoglu, M. ^{[31
]}

Bellis, M. ^{[8
]}

Benmouna, N. ^{[17
]}

Berman, B. L. ^{[17
]}

Biselli, A. S. ^{[8
,14
,34
]}

Blaszczyk, L. ^{[16
]}

Bouchigny, S. ^{[22
]}

Boiarinov, S. ^{[2
]}

Bradford, R. ^{[8
]}

Branford, D. ^{[13
]}

Briscoe, W. J. ^{[17
]}

Brooks, W. K. ^{[2
]}

Burkert, V. D. ^{[2
]}

Butuceanu, C. ^{[40
]}

Calarco, J. R. ^{[29
]}

Careccia, S. L. ^{[32
]}

Carman, D. S. ^{[2
]}

Carnahan, B. ^{[9
]}

Casey, L. ^{[9
]}

Chen, S. ^{[16
]}

Cheng, L. ^{[9
]}

Cole, P. L. ^{[19
]}

Collins, P. ^{[5
]}

Coltharp, P. ^{[16
]}

Crabb, D. ^{[39
]}

Crannell, H. ^{[9
]}

Crede, V. ^{[16
]}

Cummings, J. P. ^{[34
]}

Dashyan, N. ^{[41
]}

De Vita, R.

机构：

[1] Univ S Carolina, Columbia, SC 29208 USA

[2] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

[3] Univ Giessen, D-35392 Giessen, Germany

[4] Argonne Natl Lab, Argonne, IL 60439 USA

[5] Arizona State Univ, Tempe, AZ 85287 USA

[6] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[7] Calif State Univ Dominguez Hills, Carson, CA 90747 USA

[8] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[9] Catholic Univ Amer, Washington, DC 20064 USA

[10] CEA Saclay, Serv Phys Nucl, F-91191 Gif Sur Yvette, France

[11] Christopher Newport Univ, Newport News, VA 23606 USA

[12] Univ Connecticut, Storrs, CT 06269 USA

[13] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland

[14] Fairfield Univ, Fairfield, CT 06824 USA

[15] Florida Int Univ, Miami, FL 33199 USA

[16] Florida State Univ, Tallahassee, FL 32306 USA

[17] George Washington Univ, Washington, DC 20052 USA

[18] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland

[19] Idaho State Univ, Pocatello, ID 83209 USA

[20] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[21] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy

[22] Inst Phys Nucl ORSAY, Orsay, France

[23] Inst Theoret & Expt Phys, RU-117259 Moscow, Russia

[24] James Madison Univ, Harrisonburg, VA 22807 USA

[25] Kyungpook Natl Univ, Taegu 702701, South Korea

[26] MIT, Cambridge, MA 02139 USA

[27] Univ Massachusetts, Amherst, MA 01003 USA

[28] Moscow MV Lomonosov State Univ, Gen Nucl Phys Inst, RU-119899 Moscow, Russia

[29] Univ New Hampshire, Durham, NH 03824 USA

[30] Norfolk State Univ, Norfolk, VA 23504 USA

[31] Ohio Univ, Athens, OH 45701 USA

[32] Old Dominion Univ, Norfolk, VA 23529 USA

[33] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[34] Rensselaer Polytech Inst, Troy, NY 12180 USA

[35] Rice Univ, Houston, TX 77005 USA

[36] Univ Richmond, Richmond, VA 23173 USA

[37] Union Coll, Schenectady, NY 12308 USA

[38] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA

[39] Univ Virginia, Charlottesville, VA 22901 USA

[40] Coll William & Mary, Williamsburg, VA 23187 USA

[41] Yerevan Phys Inst, Yerevan 375036, Armenia

来源：

PHYSICAL REVIEW C | 2008年 / 78卷 / 01期

基金：

美国国家科学基金会; 英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevC.78.015201

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The light vector mesons (rho,omega, and phi) were produced in deuterium, carbon, titanium, and iron targets in a search for possible in-medium modifications to the properties of the rho 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 rho-meson mass spectrum was extracted after the omega and phi signals were removed in a nearly model-independent way. Comparisons were made between the rho mass spectra from the heavy targets (A > 2) with the mass spectrum extracted from the deuterium target. With respect to the rho-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.

引用

页数：15

共 50 条

[1] VECTOR-MESONS IN NUCLEAR MEDIUM
HATSUDA, T
SHIOMI, H
NUCLEAR PHYSICS A, 1995, 590 (1-2) : C545 - C548
[2] Light vector mesons in nuclear matter
Hatsuda, T
Shiomi, H
Kuwabara, H
PROGRESS OF THEORETICAL PHYSICS, 1996, 95 (06): : 1009 - 1028
[3] Medium Modification of the Light Vector Mesons in Nuclei
Nasseripour, R.
Djalali, C.
Wood, M.
Weygand, D.
SIXTH INTERNATIONAL CONFERENCE ON PERSPECTIVES IN HADRONIC PHYSICS, 2008, 1056 : 223 - +
[4] Medium modifications of light vector mesons in nuclei
Djalali, Chaden
Nasseripour, Rakhsha
Weygand, Dennis
Wood, Mike
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 2007, (168): : 511 - 518
[5] Medium Modifications of Light Vector Mesons in Nuclei
Djalali, C.
Wood, M.
Nasseripour, R.
Weygand, D.
NUCLEAR PHYSICS A, 2009, 827 (1-4) : 246C - 248C
[6] In-medium properties of light vector mesons
Djalali, C.
Nasseripour, R.
Weygand, D. P.
Wood, M. H.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2007, 34 (08) : S495 - S501
[7] Search for medium effects on light vector mesons
Djalali, C.
Nasseripour, R.
Weygand, D. P.
Wood, M. H.
QUARK CONFINEMENT AND THE HADRON SPECTRUM VII, 2007, 892 : 262 - 264
[8] Light vector mesons photoproduction and nuclear shadowing
Trebien, Haimon
ASTRONOMISCHE NACHRICHTEN, 2024, 345 (2-3)
[9] QCD sum rules for vector mesons in nuclear medium
Leupold, S
Mosel, U
PHYSICAL REVIEW C, 1998, 58 (05): : 2939 - 2957
[10] The In-medium Mass and Widths of Light Vector Mesons
Djalali, C.
Paolone, M.
Weygand, D.
Wood, M. H.
Nasseripour, R.
IX INTERNATIONAL CONFERENCE ON QUARK CONFINEMENT AND THE HADRON SPECTRUM (QCHS IX), 2011, 1343 : 574 - 576

← 1 2 3 4 5 →