Spin asymmetries A1 and structure functions g1 of the proton and the deuteron from polarized high energy muon scattering -: art. no. 112001

被引：397

作者：

Adeva, B ^{[1
]}

Akdogan, T

Arik, E

Arvidson, A

Badelek, B

Bardin, G

Baum, G

Berglund, P

Betev, L

Bird, IG

Birsa, R

Björkholm, P

de Botton, N

Boutemeur, M

Bradamante, F

Bravar, A

Bressan, A

Bültmann, S

Burtin, E

Cavata, C

Crabb, D

Cranshaw, J

Cuhadar, T

Dalla Torre, S

van Dantzig, R

Derro, B

Deshpande, A

Dhawan, S

Dulya, C

Dyring, A

Eichblatt, S

Faivre, JC

Fasching, D

Feinstein, F

Fernandez, C

Forthmann, S

Frois, B

Gallas, A

Garzon, JA

Gilly, H

Giorgi, M

von Goeler, E

Goertz, S

Golutvin, IA

Gracia, G

de Groot, N

Perdekamp, MG

Haft, K

von Harrach, D

Hasegawa, T

机构：

[1] Univ Santiago, Dept Particle Phys, Santiago De Compostela 15706, Spain

[2] Univ Bielefeld, Dept Phys, D-33501 Bielefeld, Germany

[3] Bogazici Univ, Istanbul, Turkey

[4] Tech Univ Istanbul, Istanbul, Turkey

[5] Ruhr Univ Bochum, Dept Phys, D-44780 Bochum, Germany

[6] Univ Calif Los Angeles, Dept Phys, Los Angeles, CA 90024 USA

[7] CERN, CH-1211 Geneva 23, Switzerland

[8] Univ Freiburg, Dept Phys, D-79104 Freiburg, Germany

[9] GKSS Forschungszentrum Geesthacht GmbH, D-21494 Geesthacht, Germany

[10] Helsinki Univ Technol, Low Temp Lab, FIN-02150 Espoo, Finland

[11] Helsinki Univ Technol, Inst Particle Phys Technol, FIN-02150 Espoo, Finland

[12] Univ Houston, Dept Phys, Houston, TX 77204 USA

[13] Joint Inst Nucl Res Dubna, RU-141980 Dubna, Russia

[14] Univ Mainz, Inst Nucl Phys, D-55099 Mainz, Germany

[15] Univ Mons, Fac Sci, B-7000 Mons, Belgium

[16] Univ Munich, Dept Phys, D-80799 Munich, Germany

[17] Nagoya Univ, CIRSE, Chikusa Ku, Nagoya, Aichi 466, Japan

[18] Nagoya Univ, Dept Phys, Chikusa Ku, Nagoya, Aichi 466, Japan

[19] Delft Univ Technol, FOM, NIKHEF, Delft, Netherlands

[20] Free Univ Amsterdam, NL-1009 AJ Amsterdam, Netherlands

[21] Northwestern Univ, Dept Phys, Evanston, IL 60208 USA

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

[23] Tel Aviv Univ, Sch Phys, IL-69978 Tel Aviv, Israel

[24] Ist Nazl Fis Nucl, I-34127 Trieste, Italy

[25] Univ Trieste, I-34127 Trieste, Italy

[26] Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA

[27] Univ Uppsala, Dept Radiat Sci, S-75121 Uppsala, Sweden

[28] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland

[29] Warsaw Univ, PL-00681 Warsaw, Poland

[30] Yale Univ, Dept Phys, New Haven, CT 06511 USA

[31] Northeastern Univ, Dept Phys, Boston, MA 02115 USA

[32] Miyazaki Univ, Fac Engn, Miyazaki 88921, Japan

[33] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[34] RIKEN, Inst Phys & Chem Res, Wako, Saitama 35101, Japan

[35] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA

[36] Kek Nat Lab High Energy Phys, Tsukuba, Ibaraki 305, Japan

[37] Rice Univ, Bonner Lab, Houston, TX 77251 USA

[38] Univ Buenos Aires, Dept Phys, RA-1428 Buenos Aires, DF, Argentina

[39] American Univ, Washington, DC 20016 USA

[40] Brookhaven Natl Lab, Upton, NY 11973 USA

[41] Warsaw Univ Technol, Warsaw, Poland

来源：

PHYSICAL REVIEW D | 1998年 / 58卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.58.112001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the final results of the spin asymmetries A(1) and the spin structure functions g(1) of the proton and the deuteron in the kinematic range 0.0008 < x < 0.7 and 0.2 < Q(2) < 100 GeV2. For the determination of A(1), in addition to the usual method which employs inclusive scattering events and includes a large radiative background at low x, we use a new method which minimizes the radiative background by selecting events with at least one hadron as well as a muon in the final state. We find that this hadron method gives smaller errors for x < 0.02, so it is combined with the usual method to provide the optimal set of results. [S0556-2821(98)07017-9].

引用

页数：17

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