Measurement of Boer-Mulders Function via Drell-Yan Process by SeaQuest Experiment at Fermilab

被引：2

作者：

Nakano, Kenichi ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, 2-12-1-H-31 Ookayama, Tokyo 1528550, Japan

来源：

PROCEEDINGS OF THE 21ST INTERNATIONAL SYMPOSIUM ON SPIN PHYSICS (SPIN2014) | 2016年 / 40卷

关键词：

Proton Structure; Parton Distribution Function; Light Anti-Quark;

D O I：

10.1142/S2010194516600417

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The SeaQuest experiment is being carried out at Fermi National Accelerator Lab (FNAL) to investigate the nucleon structure with the Drell-Yan process. It utilizes the 120-GeV proton beam extracted from the FNAL Main Injector and targets of liquid hydrogen, liquid deuterium, carbon, iron and tungsten. The solid targets are used to measure the nuclear effects. This paper describes the flavor asymmetry of light anti-quark distributions in the proton ((d) over bar/(u) over bar) and the angular distribution of Drell-Yan process. The Boer-Mulders function (h(1)(+/-)(x, k(T))) can be derived from the size (v) of cos 2 phi modulation. SeaQuest finished the second data-taking period in August 2014. Preliminary results of (d) over bar/(u) over bar and v are reported.

引用

页数：6

共 11 条

[1] STUDY OF THE ISOSPIN SYMMETRY-BREAKING IN THE LIGHT-QUARK SEA OF THE NUCLEON FROM THE DRELL-YAN PROCESS [J].

BALDIT, A ;

BARRIERE, C ;

CASTOR, J ;

CHAMBON, T ;

DEVAUX, A ;

ESPAGNON, B ;

FARGEIX, J ;

FORCE, P ;

LANDAUD, G ;

SATURNINI, P ;

VAZEILLE, F ;

SONDEREGGER, P ;

ABREU, MC ;

BORDALO, P ;

FERREIRA, R ;

LOURENCO, C ;

RAMOS, S ;

SILVA, S ;

VARELA, J ;

GERSCHEL, C ;

JOUAN, D ;

TARRAGO, X ;

CHAURAND, B ;

KLUBERG, L ;

ROMANA, A ;

GORODETZKY, P ;

LAZIC, D ;

MAZINI, R ;

RACCA, C ;

ALESSANDRO, B ;

CHIAVASSA, E ;

DELLACASA, G ;

GALLIO, M ;

GIUBELLINO, P ;

GUAITA, P ;

MARZARICHIESA, A ;

MASERA, M ;

MONTENO, M ;

MUSSO, A ;

RAMELLO, L ;

RICCATI, L ;

SCOMPARIN, E ;

VERCELLIN, E ;

BEDJIDIAN, M ;

CONTARDO, D ;

DESCROIX, E ;

DRAPIER, O ;

GROSSIORD, JY ;

GUICHARD, A ;

HAROUTUNIAN, R .

PHYSICS LETTERS B, 1994, 332 (1-2) :244-250

[2] Azimuthal asymmetries in unpolarized Drell-Yan processes and the Boer-Mulders distributions of antiquarks [J].

Barone, Vincenzo ;

Melis, Stefano ;

Prokudin, Alexei .

PHYSICAL REVIEW D, 2010, 82 (11)

[3] Boer-Mulders effect in unpolarized SIDIS: An analysis of the COMPASS and HERMES data on the cos2φ asymmetry [J].

Barone, Vincenzo ;

Melis, Stefano ;

Prokudin, Alexei .

PHYSICAL REVIEW D, 2010, 81 (11)

[4] Time-reversal odd distribution functions in leptoproduction [J].

Boer, D ;

Mulders, PJ .

PHYSICAL REVIEW D, 1998, 57 (09) :5780-5786

[5] SUM RULE FOR HIGH-ENERGY ELECTRON-PROTON SCATTERING [J].

GOTTFRIED, K .

PHYSICAL REVIEW LETTERS, 1967, 18 (25) :1174-+

[6] SYSTEMATIC-APPROACH TO INCLUSIVE LEPTON PAIR PRODUCTION IN HADRONIC COLLISIONS [J].

LAM, CS ;

TUNG, WK .

PHYSICAL REVIEW D, 1978, 18 (07) :2447-2461

[7] Updating Boer-Mulders functions from unpolarized pd and pp Drell-Yan data [J].

Lu, Zhun ;

Schmidt, Ivan .

PHYSICAL REVIEW D, 2010, 81 (03)

[8]

Peng JC, 1998, PHYS REV D, V58, DOI 10.1103/PhysRevD.58.092004

[9]

Towell RS, 2001, PHYS REV D, V64, DOI 10.1103/PhysRevD.64.052002

[10] Measurement of angular distributions of drell-yan dimuons in p+d interactions at 800 GeV/c [J].

Zhu, L. Y. ;

Peng, J. C. ;

Reimer, P. E. ;

Awes, T. C. ;

Brooks, M. L. ;

Brown, C. N. ;

Bush, J. D. ;

Carey, T. A. ;

Chang, T. H. ;

Cooper, W. E. ;

Gagliardi, C. A. ;

Garvey, G. T. ;

Geesaman, D. F. ;

Hawker, E. A. ;

He, X. C. ;

Isenhower, L. D. ;

Kaplan, D. M. ;

Kaufman, S. B. ;

Klinksiek, S. A. ;

Koetke, D. D. ;

Lee, D. M. ;

Lee, W. M. ;

Leitch, M. J. ;

Makins, N. ;

McGaughey, P. L. ;

Moss, J. M. ;

Mueller, B. A. ;

Nord, P. M. ;

Papavassiliou, V. ;

Park, B. K. ;

Petitt, G. ;

Sadler, M. E. ;

Sondheim, W. E. ;

Stankus, P. W. ;

Thompson, T. N. ;

Towell, R. S. ;

Tribble, R. E. ;

Vasiliev, M. A. ;

Webb, J. C. ;

Willis, J. L. ;

Wise, D. K. ;

Young, G. R. .

PHYSICAL REVIEW LETTERS, 2007, 99 (08)

← 1 2 →