Search for charged scalar leptons using the OPAL detector at root s=161 GeV

被引：19

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

Biguzzi, A

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

机构：

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

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

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

[4] UNIV CALIF RIVERSIDE,DEPT PHYS,RIVERSIDE,CA 92521

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

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

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

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

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

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

[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

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

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

[16] UNIV LONDON UNIV COLL,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

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

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

[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

[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

来源：

PHYSICS LETTERS B | 1997年 / 396卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(97)00073-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for pair-produced scalar electron, muon and tau leptons has been performed using a data sample corresponding to an integrated luminosity of 10.1 pb(-1) at a centre-of-mass energy of root s=161 GeV collected with the OPAL detector at LEP Such events would yield an acoplanar pair of leptons with significant missing energy in the final state. No excess of acoplanar lepton pair events has been observed in the data. Limits are presented on the production cross-sections of charged scalar leptons. Exclusion regions are also presented in the framework of the Minimal Supersymmetric Standard Model A 95% C.L. lower limit on the right-handed selectron mass of 71.5 GeV is obtained for tan beta greater than or equal to 1.5, \mu\ greater than or equal to 200 GeV and m(chi 1)(0) = 12.0 GeV, A 95% C.L. lower limit on the right-handed smuon mass of 51.0 GeV is obtained for m(<(chi)over tilde (1)>)(0) = 12.0 GeV, independent of tan beta and mu. (C) 1997 Elsevier Science B.V.

引用

页码：301 / 314

页数：14

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