Limits on anomalous WW gamma couplings from p(p)over-bar->W gamma+X events at root s=1.8 TeV

被引:56
作者
Abachi, S
Abbott, B
Abolins, M
Acharya, BS
Adam, I
Adams, DL
Adams, M
Ahn, S
Aihara, H
Alvarez, G
Alves, GA
Amidi, E
Amos, N
Anderson, EW
Aronson, SH
Astur, R
Baarmand, MM
Baden, A
Balamurali, V
Balderston, J
Baldin, B
Banerjee, S
Bantly, J
Bartlett, JF
Bazizi, K
Belyaev, A
Bendich, J
Beri, SB
Bertram, I
Bezzubov, VA
Bhat, PC
Bhatnagar, V
Bhattacharjee, M
Bischoff, A
Biswas, N
Blazey, G
Blessing, S
Bloom, P
Boehnlein, A
Bojko, NI
Borcherding, F
Borders, J
Boswell, C
Brandt, A
Brock, R
Bross, A
Buchholz, D
Burtovoi, VS
Butler, JM
Carvalho, W
机构
[1] UNIV LOS ANDES,BOGOTA,COLOMBIA
[2] UNIV ARIZONA,TUCSON,AZ 85721
[3] BOSTON UNIV,BOSTON,MA 02215
[4] BROOKHAVEN NATL LAB,UPTON,NY 11973
[5] BROWN UNIV,PROVIDENCE,RI 02912
[6] UNIV BUENOS AIRES,BUENOS AIRES,DF,ARGENTINA
[7] UNIV CALIF DAVIS,DAVIS,CA 95616
[8] UNIV CALIF IRVINE,IRVINE,CA 92717
[9] UNIV CALIF RIVERSIDE,RIVERSIDE,CA 92521
[10] CTR BRASILEIRO PESQUISAS FIS,LAFEX,RIO JANEIRO,BRAZIL
[11] CINVESTAV IPN,MEXICO CITY 14000,DF,MEXICO
[12] UNIV DELHI,DELHI 110007,INDIA
[13] COLUMBIA UNIV,NEW YORK,NY 10027
[14] FLORIDA STATE UNIV,TALLAHASSEE,FL 32306
[15] UNIV HAWAII,HONOLULU,HI 96822
[16] UNIV ILLINOIS,CHICAGO,IL 60607
[17] INDIANA UNIV,BLOOMINGTON,IN 47405
[18] IOWA STATE UNIV,AMES,IA 50011
[19] KOREA UNIV,SEOUL 136701,SOUTH KOREA
[20] KYUNGSUNG UNIV,PUSAN 608736,SOUTH KOREA
[21] LAWRENCE BERKELEY LAB,BERKELEY,CA 94720
[22] UNIV CALIF BERKELEY,BERKELEY,CA 94720
[23] UNIV MARYLAND,COLLEGE PK,MD 20742
[24] UNIV MICHIGAN,ANN ARBOR,MI 48109
[25] MICHIGAN STATE UNIV,E LANSING,MI 48824
[26] MOSCOW MV LOMONOSOV STATE UNIV,MOSCOW,RUSSIA
[27] UNIV NEBRASKA,LINCOLN,NE 68588
[28] NYU,NEW YORK,NY 10003
[29] NORTHEASTERN UNIV,BOSTON,MA 02115
[30] NO ILLINOIS UNIV,DE KALB,IL 60115
[31] UNIV NOTRE DAME,NOTRE DAME,IN 46556
[32] UNIV OKLAHOMA,NORMAN,OK 73019
[33] PANJAB UNIV,CHANDIGARH 160014,INDIA
[34] INST HIGH ENERGY PHYS,PROTVINO 142284,RUSSIA
[35] PURDUE UNIV,W LAFAYETTE,IN 47907
[36] RICE UNIV,HOUSTON,TX 77005
[37] UNIV ESTADUAL RIO DE JANEIRO,RIO JANEIRO,BRAZIL
[38] UNIV ROCHESTER,ROCHESTER,NY 14627
[39] CTR ETUD SACLAY,CEA,DAPNIA,SERV PHYS PARTICULES,F-91191 GIF SUR YVETTE,FRANCE
[40] SEOUL NATL UNIV,SEOUL,SOUTH KOREA
[41] SUNY STONY BROOK,STONY BROOK,NY 11794
[42] TATA INST FUNDAMENTAL RES,BOMBAY 400005,MAHARASHTRA,INDIA
[43] UNIV TEXAS,ARLINGTON,TX 76019
[44] TEXAS A&M UNIV,COLLEGE STN,TX 77843
[45] NORTHWESTERN UNIV,EVANSTON,IL 60208
关键词
D O I
10.1103/PhysRevLett.78.3634
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have measured the WW gamma gauge boson coupling parameters using <p(p)over bar>-->l nu gamma+X (l=e,mu) events at root s=1.8 TeV. The data, corresponding to an integrated luminosity of 92.8 pb(-1), were collected using the D{empty set} detector at the Fermilab Tevatron Collider. The measured cross section times branching ratio for <p(p)over bar>-->W gamma+X with p(T)(gamma)>10 GeV/c and R-l gamma >0.7 is 11.3(-1.5)(+1.7)+/-1.5 pb, in agreement with the standard model prediction. The 1 degree of freedom 95% confidence level limits on individual CP-conserving parameters are -0.93 <Delta kappa<0.94 and -0.31 <lambda<0.29. Similar limits are set on the CP-violating coupling parameters.
引用
收藏
页码:3634 / 3639
页数:6
相关论文
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