Measurement of the p(p)over-bar→WZ+X cross section at √s=1.96 TeV and limits on WWZ trilinear gauge couplings

被引：18

作者：

Abazov, V. M. ^{[1
,53
]}

Abbott, B. ^{[9
]}

Abolins, M. ^{[19
]}

Acharya, B. S. ^{[61
]}

Adams, M. ^{[33
]}

Adams, T. ^{[35
]}

Aguilo, E. ^{[88
,89
,90
,91
]}

Ahn, S. H.

Ahsan, M. ^{[37
]}

Alexeev, G. D. ^{[1
,53
]}

Alkhazov, G. ^{[49
]}

Alton, A. ^{[20
]}

Alverson, G. ^{[21
]}

Alves, G. A. ^{[93
]}

Anastasoaie, M. ^{[54
]}

Ancu, L. S. ^{[54
]}

Andeen, T. ^{[31
,43
]}

Anderson, S. ^{[40
]}

Andrieu, B. ^{[75
,76
]}

Anzelc, M. S. ^{[31
,43
]}

Arnoud, Y. ^{[80
]}

Arov, M. ^{[24
]}

Arthaud, M. ^{[74
]}

Askew, A. ^{[35
]}

Asman, B. ^{[45
,46
,47
,48
]}

Jesus, A. C. S. Assis ^{[95
]}

Atramentov, O. ^{[35
]}

Autermann, C. ^{[69
]}

Avila, C. ^{[86
]}

Ay, C. ^{[66
]}

Badaud, F. ^{[81
]}

Baden, A. ^{[23
]}

Bagby, L. ^{[32
]}

Baldin, B. ^{[34
]}

Bandurin, D. V. ^{[25
]}

Banerjee, S. ^{[61
]}

Banerjee, P. ^{[61
]}

Barberis, E. ^{[21
]}

Barfuss, A. -F. ^{[79
]}

Bargassa, P. ^{[4
]}

Baringer, P.

Barreto, J. ^{[93
]}

Bartlett, J. F. ^{[34
]}

Bassler, U. ^{[75
,76
]}

Bauer, D. ^{[42
]}

Beale, S. ^{[88
,89
,90
,91
]}

Bean, A.

Begalli, M.

Begel, M. ^{[13
]}

Belanger-Champagne, C. ^{[45
,46
,47
,48
]}

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

[2] Univ Washington, Seattle, WA 98195 USA

[3] Univ Virginia, Charlottesville, VA 22901 USA

[4] Rice Univ, Houston, TX 77005 USA

[5] So Methodist Univ, Dallas, TX 75275 USA

[6] Univ Texas Arlington, Arlington, TX 76019 USA

[7] Brown Univ, Providence, RI 02912 USA

[8] Oklahoma State Univ, Stillwater, OK 74078 USA

[9] Univ Oklahoma, Norman, OK 73019 USA

[10] Langston Univ, Langston, OK 73050 USA

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

[12] SUNY Stony Brook, Stony Brook, NY 11794 USA

[13] Univ Rochester, Rochester, NY 14627 USA

[14] Columbia Univ, New York, NY 10027 USA

[15] SUNY Buffalo, Buffalo, NY 14260 USA

[16] Princeton Univ, Princeton, NJ 08544 USA

[17] Univ Nebraska, Lincoln, NE 68588 USA

[18] Univ Mississippi, University, MS 38677 USA

[19] Michigan State Univ, E Lansing, MI 48824 USA

[20] Univ Michigan, Ann Arbor, MI 48109 USA

[21] Northeastern Univ, Boston, MA 02115 USA

[22] Boston Univ, Boston, MA 02215 USA

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

[24] Louisiana Tech Univ, Ruston, LA 71272 USA

[25] Kansas State Univ, Manhattan, KS 66506 USA

[26] Univ Kansas, Lawrence, KS 66045 USA

[27] Iowa State Univ, Ames, IA 50011 USA

[28] Purdue Univ Calumet, Hammond, IN 46323 USA

[29] Univ Notre Dame, Notre Dame, IN 46556 USA

[30] Indiana Univ, Bloomington, IN 47405 USA

[31] Northwestern Univ, Evanston, IL 60208 USA

[32] No Illinois Univ, De Kalb, IL 60115 USA

[33] Univ Illinois, Chicago, IL 60607 USA

[34] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

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

[36] Univ Calif Riverside, Riverside, CA 92521 USA

[37] Calif State Univ Fresno, Fresno, CA 93740 USA

[38] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[39] Univ Calif Berkeley, Berkeley, CA 94720 USA

[40] Univ Arizona, Tucson, AZ 85721 USA

[41] Univ Manchester, Manchester, Lancs, England

[42] Univ London Imperial Coll Sci Technol & Med, London, England

[43] Univ Lancaster, Lancaster, England

[44] Univ Zurich, Inst Phys, Zurich, Switzerland

[45] Uppsala Univ, Uppsala, Sweden

[46] Stockholm Univ, S-10691 Stockholm, Sweden

[47] Stockholm Univ, Royal Inst Technol, S-10691 Stockholm, Sweden

[48] Lund Univ, Lund, Sweden

[49] Petersburg Nucl Phys Inst, St Petersburg, Russia

[50] Inst High Energy Phys, Protvino, Russia

来源：

PHYSICAL REVIEW D | 2007年 / 76卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.76.111104

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present measurements of the process p (P) over bar -> WZ + X -> l 'nu(l ')l (l) over bar at root s = 1:96 TeV,where l and l ' are electrons or muons. Using 1 fb(-1) of data from the D0 experiment, we observe 13 candidates with an expected background of 4.5 +/- 0.6 events and measure a cross section sigma(WZ) = 2.7(-1.3)(+1.7) pb. From the number of observed events and the Z boson transverse momentum distribution, we limit the trilinear WWZ gauge couplings to -0: 17 <= lambda(Z) <= 0.21 (Delta k(Z) <= 0.29(lambda(Z) = 0) at the 95% C.L. for a form factor scale Lambda = 2 TeV. Further, assuming that Delta g(1)(Z) = Delta k(Z), we find -0.12 <= Delta k(Z) <= 0.29(lambda(Z) = 0) at the 95% C. L. These are the most restrictive limits on the WWZ couplings available to date.

引用

页数：8

共 23 条

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