Nucleon longitudinal spin structure at COMPASS

被引：0

作者：

Bedfer, Y ^{[1
]}

机构：

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

来源：

NUCLEAR PHYSICS A | 2005年 / 755卷

关键词：

D O I：

10.1016/j.nuclphysa.2005.03.109

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 nucleon spin structure is studied at COMPASS via the measurement of the spin dependent properties of deep inelastic muon-deuteron scattering. Both inclusive and semi-inclusive observables are investigated, with the emphasis put on the latter. This allows to access, in particular, the gluon polarization (Delta G/G) and the flavor decomposition of the quark helicity distributions. Results from measurements with longitudinal target polarization are presented, as well as uncertainties expected from the first 3 years of data taking.

引用

页码：317C / 320C

页数：4

共 9 条

[1] Spin asymmetries for events with high pT hadrons in DIS and an evaluation of the gluon polarization -: art. no. 012002 [J].

Adeva, B ;

Arik, E ;

Arvidson, A ;

Badelek, B ;

Baum, G ;

Berglund, P ;

Betev, L ;

Birsa, R ;

de Botton, N ;

Bradamante, F ;

Bravar, A ;

Bressan, A ;

Bültmann, S ;

Burtin, E ;

Crabb, D ;

Cranshaw, J ;

Çuhadar, T ;

Dalla Torre, S ;

van Dantzig, R ;

Derro, B ;

Deshpande, A ;

Dhawan, S ;

Dulya, C ;

Eichblatt, S ;

Fasching, D ;

Feinstein, F ;

Fernandez, C ;

Frois, B ;

Gallas, A ;

Garzon, JA ;

Gilly, H ;

Giorgi, M ;

von Goeler, E ;

Goertz, S ;

Gracia, G ;

de Groot, N ;

Perdekamp, MG ;

Haft, K ;

von Harrach, D ;

Hasegawa, T ;

Hautle, P ;

Hayashi, N ;

Heusch, CA ;

Horikawa, N ;

Hughes, VW ;

Igo, G ;

Ishimoto, S ;

Iwata, T ;

Kabuss, EM ;

Karev, A .

PHYSICAL REVIEW D, 2004, 70 (01) :012002-1

[2] Polarised quark distributions in the nucleon from semi-inclusive spin asymmetries [J].

Adeva, B ;

Akdogan, T ;

Arik, E ;

Arvidson, A ;

Badelek, B ;

Bardin, G ;

Baum, G ;

Berglund, P ;

Betev, L ;

Birsa, R ;

de Botton, N ;

Bradamante, F ;

Bravar, A ;

Bressan, A ;

Bultmann, S ;

Burtin, E ;

Crabb, D ;

Cranshaw, J ;

Cuhadar, T ;

Dalla Torre, S ;

van Dantzig, R ;

Derro, B ;

Deshpande, A ;

Dhawan, S ;

Dulya, C ;

Eichblatt, S ;

Fasching, D ;

Feinstein, F ;

Fernandez, C ;

Forthmann, S ;

Frois, B ;

Gallas, A ;

Garzon, JA ;

Gilly, H ;

Giorgi, M ;

von Goeler, E ;

Goertz, S ;

Gracia, G ;

de Groot, N ;

Grosse Perdekamp, M ;

Haft, K ;

von Harrach, D ;

Hasegawa, T ;

Hautle, P ;

Hayashi, N ;

Heusch, CA ;

Horikawa, N ;

Hughes, VW ;

Igo, G ;

Ishimoto, S .

PHYSICS LETTERS B, 1998, 420 (1-2) :180-190

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

Adeva, B ;

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 .

PHYSICAL REVIEW D, 1998, 58 (11)

[4]

AGEEV ES, UNPUB PHYS LETT B, P82002

[5] Measurement of the spin asymmetry in the photoproduction of pairs of high-pT hadrons at HERMES [J].

Airapetian, A ;

Akopov, N ;

Amarian, M ;

Aschenauer, EC ;

Avakian, H ;

Avakian, R ;

Avetissian, A ;

Bains, B ;

Baumgarten, C ;

Beckmann, M ;

Belostotski, S ;

Belz, JE ;

Benisch, T ;

Bernreuther, S ;

Bianchi, N ;

Blouw, J ;

Böttcher, H ;

Borissov, A ;

Brack, J ;

Brauksiepe, S ;

Braun, B ;

Brückner, W ;

Brüll, A ;

Bulten, HJ ;

Capitani, GP ;

Carter, P ;

Chumney, P ;

Cisbani, E ;

Court, GR ;

Dalpiaz, PF ;

De Sanctis, E ;

De Schepper, D ;

Devitsin, E ;

Huberts, PKAD ;

Di Nezza, P ;

Düren, M ;

Dvoredsky, A ;

Elbakian, G ;

Ely, J ;

Fantoni, A ;

Ferstl, M ;

Fiedler, K ;

Filippone, BW ;

Fischer, H ;

Fox, B ;

Franz, J ;

Frullani, S ;

Funk, MA ;

Gärber, Y ;

Garibaldi, F .

PHYSICAL REVIEW LETTERS, 2000, 84 (12) :2584-2588

[6] Measurement of the deuteron spin structure function g1d(x) for 1 (GeV/c)2 < Q2 < 40 (GeV/c)2 [J].

Anthony, PL ;

Arnold, RG ;

Averett, T ;

Band, HR ;

Berisso, MC ;

Borel, H ;

Bosted, PE ;

Bültmann, SL ;

Buenerd, M ;

Chupp, T ;

Churchwell, S ;

Court, GR ;

Crabb, D ;

Day, D ;

Decowski, P ;

DePietro, P ;

Erbacher, R ;

Erickson, R ;

Feltham, A ;

Fonvieille, H ;

Frlez, E ;

Gearhart, R ;

Ghazikhanian, V ;

Gomez, J ;

Griffioen, KA ;

Harris, C ;

Houlden, MA ;

Hughes, EW ;

Hyde-Wright, CE ;

Igo, G ;

Incerti, S ;

Jensen, J ;

Johnson, JR ;

King, PM ;

Kolomensky, YG ;

Kuhn, SE ;

Lindgren, R ;

Lombard-Nelsen, RM ;

Marroncle, J ;

McCarthy, J ;

McKee, P ;

Meyer, W ;

Mitchell, G ;

Mitchell, J ;

Olson, M ;

Penttila, S ;

Peterson, G ;

Petratos, GG ;

Pitthan, R ;

Pocanic, D .

PHYSICS LETTERS B, 1999, 463 (2-4) :339-345

[7] SPIN-DEPENDENT PARTON DISTRIBUTIONS FROM POLARIZED STRUCTURE-FUNCTION DATA [J].

GEHRMANN, T ;

STIRLING, WJ .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 65 (03) :461-470

[8] The COMPASS spectrometer at CERN [J].

Mallot, GK .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004, 518 (1-2) :121-124

[9]

WEISKOPF C, BOLOG 2001 DEEP IN S, P555

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