Measurement of the mass of the W boson in e(+)e(-) collisions at root s=161 GeV

被引：62

作者：

Ackerstaff, K

Alexander, G

Allison, J

Altekamp, N

Ametewee, K

Anderson, KJ

Anderson, S

Arcelli, S

Asai, S

Axen, D

Azuelos, G

Ball, AH

Barberio, E

Barlow, RJ

Bartoldus, R

Batley, JR

Bechtluft, J

Beeston, C

Behnke, T

Bell, AN

Bell, KW

Bella, G

Bentvelsen, S

Berlich, P

Bethke, S

Biebel, O

Blobel, V

Bloodworth, IJ

Bloomer, JE

Bobinski, M

Bock, P

Bosch, HM

Boutemeur, M

Bouwens, BT

Braibant, S

Brown, RM

Burckhart, HJ

Burgard, C

Burgin, R

Capiluppi, P

Carnegie, RK

Carter, AA

Carter, JR

Chang, CY

Charlton, DG

Chrisman, D

Clarke, PEL

Cohen, I

Conboy, JE

Cooke, OC

机构：

[1] UNIV BIRMINGHAM, SCH PHYS & SPACE RES, BIRMINGHAM B15 2TT, W MIDLANDS, ENGLAND

[2] UNIV BOLOGNA, DIPARTMENTO FIS, I-40126 BOLOGNA, ITALY

[3] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY

[4] UNIV BONN, INST PHYS, D-53115 BONN, GERMANY

[5] UNIV CALIF RIVERSIDE, DEPT PHYS, RIVERSIDE, CA 92521 USA

[6] UNIV CAMBRIDGE, CAVENDISH LAB, CAMBRIDGE CB3 0HE, ENGLAND

[7] CARLETON UNIV, DEPT PHYS, OTTAWA CARLETON INST PHYS, OTTAWA, ON K1S 5B6, CANADA

[8] CARLETON UNIV, CTR RES PARTICLE PHYS, OTTAWA, ON K1S 5B6, CANADA

[9] UNIV CHICAGO, ENRICO FERMI INST, CHICAGO, IL 60637 USA

[10] UNIV CHICAGO, DEPT PHYS, CHICAGO, IL 60637 USA

[11] UNIV FREIBURG, FAK PHYS, D-79104 FREIBURG, GERMANY

[12] UNIV HEIDELBERG, INST PHYS, D-69120 HEIDELBERG, GERMANY

[13] INDIANA UNIV, DEPT PHYS, BLOOMINGTON, IN 47405 USA

[14] UNIV LONDON QUEEN MARY & WESTFIELD COLL, LONDON E1 4NS, ENGLAND

[15] RHEIN WESTFAL TH AACHEN, INST PHYS 3, D-52056 AACHEN, GERMANY

[16] UCL, LONDON WC1E 6BT, ENGLAND

[17] UNIV MANCHESTER, SCHUSTER LAB, DEPT PHYS, MANCHESTER M13 9PL, LANCS, ENGLAND

[18] UNIV MARYLAND, DEPT PHYS, COLLEGE PK, MD 20742 USA

[19] UNIV MONTREAL, PHYS NUCL LAB, MONTREAL, PQ H3C 3J7, CANADA

[20] UNIV OREGON, DEPT PHYS, EUGENE, OR 97403 USA

[21] RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND

[22] TECHNION ISRAEL INST TECHNOL, DEPT PHYS, IL-32000 HAIFA, ISRAEL

[23] TEL AVIV UNIV, DEPT PHYS & ASTRON, IL-69978 TEL AVIV, ISRAEL

[24] UNIV TOKYO, INT CTR ELEMENTARY PARTICLE PHYS, TOKYO 113, JAPAN

[25] UNIV TOKYO, DEPT PHYS, TOKYO 113, JAPAN

[26] KOBE UNIV, KOBE 657, JAPAN

[27] BRUNEL UNIV, UXBRIDGE UB8 3PH, MIDDX, ENGLAND

[28] WEIZMANN INST SCI, DEPT PARTICLE PHYS, IL-76100 REHOVOT, ISRAEL

[29] UNIV HAMBURG, DESY, INST EXPT PHYS 2, D-22607 HAMBURG, GERMANY

[30] UNIV VICTORIA, DEPT PHYS, VICTORIA, BC V8W 3P6, CANADA

[31] UNIV BRITISH COLUMBIA, DEPT PHYS, VANCOUVER, BC V6T 1Z1, CANADA

[32] UNIV ALBERTA, DEPT PHYS, EDMONTON, AB T6G 2J1, CANADA

[33] DUKE UNIV, DEPT PHYS, DURHAM, NC 27708 USA

[34] RES INST PARTICLE & NUCL PHYS, H-1525 BUDAPEST, HUNGARY

[35] INST NUCL RES, H-4001 DEBRECEN, HUNGARY

[36] UNIV MUNICH, SEKT PHYS, D-85748 GARCHING, GERMANY

[37] TRIUMF, VANCOUVER, BC V6T 2A3, CANADA

[38] LAJOS KOSSUTH UNIV, DEPT EXPT PHYS, DEBRECEN, HUNGARY

来源：

PHYSICS LETTERS B | 1996年 / 389卷 / 02期

基金：

美国国家科学基金会; 以色列科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0370-2693(96)01452-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This letter describes the first observation of W boson pair production at a centre-of-mass energy root s = 161.3 GeV in the OPAL detector at LEP The analysis is sensitive to all expected W+W- decay channels. A total of 28 events have been selected for an integrated luminosity of 9.89 +/- 0.06 pb(-1). This is consistent with the Standard Model expectation, including signal and background contributions. The W pair production cross-section is measured to be sigma(WW) = 3.62(-0.82)(+0.93) +/- 0.16 pb. An analysis of the predicted M(W) dependence of the accepted cross-section, taking into account interference in the four-fermion production processes, yields M(W) = 80.40(-0.41-0.10)(+0.44+0.09) +/- 0.10 GeV, where the first and second uncertainties are statistical and systematic, respectively, and the third arises from the beam energy uncertainty.

引用

页码：416 / 428

页数：13

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