Virtual Compton scattering and the generalized polarizabilities of the proton at Q2=0.92 and 1.76 GeV2

被引：20

作者：

Fonvieille, H. ^{[1
]}

Laveissiere, G. ^{[1
]}

Degrande, N. ^{[2
]}

Jaminion, S. ^{[1
]}

Jutier, C. ^{[1
,3
]}

Todor, L. ^{[3
]}

Di Salvo, R. ^{[1
]}

Van Hoorebeke, L. ^{[2
]}

Alexa, L. C. ^{[4
]}

Anderson, B. D. ^{[5
]}

Aniol, K. A. ^{[6
]}

Arundell, K. ^{[7
]}

Audit, G. ^{[8
]}

Auerbach, L. ^{[9
]}

Baker, F. T. ^{[10
]}

Baylac, M. ^{[8
]}

Berthot, J. ^{[1
]}

Bertin, P. Y. ^{[1
]}

Bertozzi, W. ^{[11
]}

Bimbot, L. ^{[12
]}

Boeglin, W. U. ^{[13
]}

Brash, E. J. ^{[4
]}

Breton, V. ^{[1
]}

Breuer, H. ^{[14
]}

Burtin, E. ^{[8
]}

Calarco, J. R. ^{[15
]}

Cardman, L. S. ^{[16
]}

Cavata, C. ^{[8
]}

Chang, C. -C. ^{[14
]}

Chen, J. -P. ^{[16
]}

Chudakov, E. ^{[16
]}

Cisbani, E. ^{[17
,18
]}

Dale, D. S. ^{[19
]}

de Jager, C. W. ^{[16
]}

De Leo, R. ^{[20
,21
]}

Deur, A. ^{[1
,16
]}

d'Hose, N. ^{[8
]}

Dodge, G. E. ^{[3
]}

Domingo, J. J. ^{[16
]}

Elouadrhiri, L. ^{[16
]}

Epstein, M. B. ^{[6
]}

Ewell, L. A. ^{[14
]}

Finn, J. M. ^{[7
]}

Fissum, K. G. ^{[11
]}

Fournier, G. ^{[8
]}

Frois, B. ^{[8
]}

Frullani, S. ^{[17
,18
]}

Furget, C. ^{[22
]}

Gao, H. ^{[11
]}

Gao, J. ^{[11
]}

机构：

[1] Clermont Univ, UBP, CNRS IN2P3, LPC, F-63000 Clermont Ferrand, France

[2] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium

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

[4] Univ Regina, Regina, SK S4S OA2, Canada

[5] Kent State Univ, Kent, OH 44242 USA

[6] Calif State Univ Los Angeles, Los Angeles, CA 90032 USA

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

[8] CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France

[9] Temple Univ, Philadelphia, PA 19122 USA

[10] Univ Georgia, Athens, GA 30602 USA

[11] MIT, Cambridge, MA 02139 USA

[12] Univ Paris 11, CNRS IN2P3, Inst Phys Nucl, UMR 8608, F-91406 Orsay, France

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

[14] Univ Maryland, College Pk, MD 20742 USA

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

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

[17] Ist Nazl Fis Nucl, Sez Sanita, I-00161 Rome, Italy

[18] Ist Super Sanita, I-00161 Rome, Italy

[19] Univ Kentucky, Lexington, KY 40506 USA

[20] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[21] Univ Bari, I-70126 Bari, Italy

[22] Univ Grenoble 1, LPSC Grenoble, CNRS IN2P3, INP, F-38026 Grenoble, France

[23] Hampton Univ, Hampton, VA 23668 USA

[24] Rutgers State Univ, Piscataway, NJ 08855 USA

[25] Kharkov Phys & Technol Inst, UA-61108 Kharkov, Ukraine

[26] Syracuse Univ, Syracuse, NY 13244 USA

[27] Duke Univ, Durham, NC 27706 USA

[28] Yamagata Univ, Yamagata 990, Japan

[29] Yerevan Phys Inst, Yerevan 375036, Armenia

[30] Tohoku Univ, Sendai, Miyagi 980, Japan

[31] Princeton Univ, Princeton, NJ 08544 USA

[32] Ist Nazl Fis Nucl, Sez Lecce, I-73100 Lecce, Italy

[33] Univ Virginia, Charlottesville, VA 22901 USA

[34] SUNY Stony Brook, Stony Brook, NY 11794 USA

[35] Univ Pavia, Dipartimento Fis, I-27100 Pavia, Italy

[36] Ist Nazl Fis Nucl, Sez Pavia, Pavia, Italy

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

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

[39] N Carolina Cent Univ, Durham, NC 27707 USA

[40] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany

[41] Harvard Univ, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW C | 2012年 / 86卷 / 01期

基金：

美国国家科学基金会;

关键词：

LOW-ENERGY; NUCLEON; REAL; ELECTROPRODUCTION;

D O I：

10.1103/PhysRevC.86.015210

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：

Virtual Compton scattering (VCS) on the proton has been studied at the Jefferson Laboratory using the exclusive photon electroproduction reaction ep -> ep gamma. This paper gives a detailed account of the analysis which has led to the determination of the structure functions P-LL - P-TT/epsilon and P-LT and the electric and magnetic generalized polarizabilities (GPs) alpha(E) (Q(2)) and beta(M) (Q(2)) at values of the four-momentum transfer squared Q(2) = 0.92 and 1.76 GeV2. These data, together with the results of VCS experiments at lower momenta, help building a coherent picture of the electric and magnetic GPs of the proton over the full measured Q(2) range and point to their nontrivial behavior.

引用

页数：25

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