Test of the four-fermion contact interaction in e(+)e(-) collisions at 130-140 GeV

被引：24

作者：

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

Charlesworth, C

Charlton, DG

Chrisman, D

Chu, SL

Clarke, PEL

Cohen, I

Conboy, JE

机构：

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

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

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

[4] CEA, DAPNIA, SPP, CE SACLAY, F-91191 GIF SUR YVETTE, FRANCE

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

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

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

[8] KOBE UNIV, KOBE 657, JAPAN

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

[10] INST MIKROBIOL & WEINFORSCH, PARTICLE PHYS DEPT, IL-76100 REHOVOT, ISRAEL

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

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

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

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

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

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

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

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

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

[20] UNIV BOLOGNA, DIPARTIMENTO FIS, I-40126 BOLOGNA, ITALY

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

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

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

[24] CAVENDISH LAB, CAMBRIDGE CB3 0HE, ENGLAND

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

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

[27] CERN, EUROPEAN ORG PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND

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

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

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

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

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

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

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

[35] UCL, LONDON WC1E 6BT, ENGLAND

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

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

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

来源：

PHYSICS LETTERS B | 1996年 / 387卷 / 02期

关键词：

D O I：

10.1016/0370-2693(96)01156-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The differential cross-sections for e(+)e(-) --> e(+)e(-), e(+)e(-) --> mu(+)mu(-) and e(+)e(-) --> tau(+)tau(-), and the total cross-section for e(+)e(-) --> <q(q)over bar> at centre-of-mass energies of 130-140 GeV were studied using about 5 pb(-1) of data collected with the OPAL detector at LEP in October and November 1995. The results are in agreement with the Standard Model predictions. Four-fermion contact interaction models were fitted to the data and lower limits were obtained on the energy scale Lambda at the 95% confidence level.

引用

页码：432 / 442

页数：11

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