Polarization transfer in proton Compton scattering at high momentum transfer -: art. no. 242001

被引：26

作者：

Hamilton, DJ ^{[1
]}

Mamyan, VH

Aniol, KA

Annand, JRM

Bertin, PY

Bimbot, L

Bosted, P

Calarco, JR

Camsonne, A

Chang, GC

Chang, TH

Chen, JP

Choi, S

Chudakov, E

Danagoulian, A

Degtyarenko, P

de Jager, CW

Deur, A

Dutta, D

Egiyan, K

Gao, H

Garibaldi, F

Gayou, O

Gilman, R

Glamazdin, A

Glashausser, C

Gomez, J

Hansen, JO

Hayes, D

Higinbotham, D

Hinton, W

Horn, T

Howell, C

Hunyady, T

Hyde-Wright, CE

Jiang, X

Jones, MK

Khandaker, M

Ketikyan, A

Kubarovsky, V

Kramer, K

Kumbartzki, G

Laveissière, G

LeRose, J

Lindgren, RA

Margaziotis, DJ

Markowitz, P

McCormick, K

Meziani, ZE

Michaels, R

机构：

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

[2] Yerevan Phys Inst, Yerevan 375036, Armenia

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

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

[5] Univ Clermont Ferrand, IN2P3, F-63177 Clermont Ferrand, France

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

[7] Univ Massachusetts, Amherst, MA 01003 USA

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

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

[10] Univ Illinois, Urbana, IL 61801 USA

[11] Temple Univ, Philadelphia, PA 19122 USA

[12] Univ Virginia, Charlottesville, VA 22901 USA

[13] Duke Univ, Durham, NC 27708 USA

[14] TUNL, Durham, NC 27708 USA

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

[16] Inst Super Sanita, I-00161 Rome, Italy

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

[18] Rutgers State Univ, Piscataway, NJ 08854 USA

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

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

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

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

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

[24] CNRS, IN2P3, Inst Sci Nucl, F-38016 Grenoble, France

[25] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[26] St Petersburg Nucl Phys Inst, Gatchina 188350, Russia

[27] Tel Aviv Univ, IL-69978 Tel Aviv, Israel

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

[29] MIT, Cambridge, MA 02139 USA

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

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.94.242001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Compton scattering from the proton was investigated at s=6.9 GeV2 and t=-4.0 GeV2 via polarization transfer from circularly polarized incident photons. The longitudinal and transverse components of the recoil proton polarization were measured. The results are in disagreement with a prediction of perturbative QCD based on a two-gluon exchange mechanism, but agree well with a prediction based on a reaction mechanism in which the photon interacts with a single quark carrying the spin of the proton.

引用

页数：5

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