Measurement of GEp/GMp in (e)over-right-arrowp → e(p)over-right-arrow to Q2=5.6 GeV2 -: art. no. 092301

被引：720

作者：

Gayou, O ^{[1
]}

Aniol, KA

Averett, T

Benmokhtar, F

Bertozzi, W

Bimbot, L

Brash, EJ

Calarco, JR

Cavata, C

Chai, Z

Chang, CC

Chang, T

Chen, JP

Chudakov, E

De Leo, R

Dieterich, S

Endres, R

Epstein, MB

Escoffier, S

Fissum, KG

Fonvieille, H

Frullani, S

Gao, J

Garibaldi, F

Gilad, S

Gilman, R

Glamazdin, A

Glashausser, C

Gomez, J

Gorbenko, V

Hansen, JO

Higinbotham, DW

Huber, GM

Iodice, M

de Jager, CW

Jiang, X

Jones, MK

Kelly, JJ

Khandaker, M

Kozlov, A

Kramer, KM

Kumbartzki, G

LeRose, JJ

Lhuillier, D

Lindgren, RA

Liyanage, N

Lolos, GJ

Margaziotis, DJ

Marie, F

Markowitz, P

机构：

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

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

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

[4] Univ Regina, Regina, SK S4S 0A2, Canada

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

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

[7] Univ Clermont Ferrand, CNRS, IN2P3, F-63177 Aubiere, France

[8] CALTECH, Pasadena, CA 91125 USA

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

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

[11] Eastern Kentucky Univ, Richmond, KY 40475 USA

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

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

[14] Univ Grenoble 1, Inst Sci Nucl, CNRS, IN2P3, F-38026 St Martin Dheres, France

[15] Univ Illinois, Urbana, IL 61801 USA

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

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

[18] Ist Nazl Fis Nucl, Sez Roma 3, I-00146 Rome, Italy

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

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

[21] Dubna Joint Nucl Res Inst, LHE, Dubna 141980, Moscow Region, Russia

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

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

[24] Lund Univ, S-22100 Lund, Sweden

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

[26] MIT, Cambridge, MA 02139 USA

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

[28] Inst Phys Nucl, F-91406 Orsay, France

[29] CEA Saclay, DAPNIA, SPhN, F-91191 Gif Sur Yvette, France

[30] Univ Virginia, Charlottesville, VA 22901 USA

[31] Yerevan Phys Inst, Yerevan 375036, Armenia

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.88.092301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ratio of the electric and magnetic form factors of the proton G(Ep)/G(Mp), which is an image of its charge and magnetization distributions, was measured at the Thomas Jefferson National Accelerator Facility (JLab) using the recoil polarization technique. The ratio of the form factors is directly proportional to the ratio of the transverse to longitudinal components of the polarization of the recoil proton in the elastic (e) over right arrowp --> e (p) over right arrow reaction. The new data presented span the range 3.5 < Q(2) < 5.6 GeV2 and are well described by a linear Q(2) fit. Also, the ratio rootQ(2) F-2p/F-1p reaches a constant value above Q(2) = 2 GeV2.

引用

页数：5

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