Production of e, mu and tau pairs in untagged two-photon collisions at LEP

被引：7

作者：

Acciarri, M ^{[1
]}

Adriani, O

AguilarBenitez, M

Ahlen, S

Alcaraz, J

Alemanni, G

Allaby, J

Aloisio, A

Alverson, G

Alviggi, MG

Ambrosi, G

Anderhub, H

Andreev, VP

Angelescu, T

Anselmo, F

Arefiev, A

Azemoon, T

Aziz, T

Bagnaia, P

Baksay, L

Ball, RC

Banerjee, S

Banicz, K

Barczyk, A

Barillere, R

Barone, L

Bartalini, P

Baschirotto, A

Basile, M

Battiston, R

Bay, A

Becattini, F

Becker, U

Behner, F

Berdugo, J

Berges, P

Bertucci, B

Betev, BL

Bhattacharya, S

Biasini, M

Biland, A

Bilei, GM

Blaising, JJ

Blyth, SC

Bobbink, GJ

Bock, R

Bohm, A

Boldizsar, L

Borgia, B

机构：

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

[2] NATL INST NUCL & HIGH ENERGY PHYS, NIKHEF, NL-1009 DB AMSTERDAM, NETHERLANDS

[3] UNIV AMSTERDAM, NL-1009 DB AMSTERDAM, NETHERLANDS

[4] LAB ANNECY LE VIEUX PHYS PARTICULES, LAPP, CNRS, IN2P3, F-74941 ANNECY LE VIEUX, FRANCE

[5] JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA

[6] UNIV BASEL, INST PHYS, CH-4056 BASEL, SWITZERLAND

[7] INST HIGH ENERGY PHYS, BEIJING 100039, PEOPLES R CHINA

[8] HUMBOLDT UNIV BERLIN, D-10099 BERLIN, GERMANY

[9] UNIV BOLOGNA, I-40126 BOLOGNA, ITALY

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

[11] TATA INST FUNDAMENTAL RES, BOMBAY 400005, MAHARASHTRA, INDIA

[12] BOSTON UNIV, BOSTON, MA 02215 USA

[13] NORTHEASTERN UNIV, BOSTON, MA 02115 USA

[14] INST ATOM PHYS, R-76900 BUCHAREST, ROMANIA

[15] UNIV BUCHAREST, R-76900 BUCHAREST, ROMANIA

[16] HUNGARIAN ACAD SCI, CENT RES INST PHYS, H-1525 BUDAPEST 114, HUNGARY

[17] HARVARD UNIV, CAMBRIDGE, MA 02139 USA

[18] MIT, CAMBRIDGE, MA 02139 USA

[19] IST NAZL FIS NUCL, I-50125 FLORENCE, ITALY

[20] UNIV FLORENCE, I-50125 FLORENCE, ITALY

[21] CERN, EUROPEAN LAB PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND

[22] WORLD LAB, FBLJA PROJECT, CH-1211 GENEVA 23, SWITZERLAND

[23] UNIV GENEVA, CH-1211 GENEVA 4, SWITZERLAND

[24] UNIV SCI & TECHNOL CHINA, HEFEI 230029, ANHUI, PEOPLES R CHINA

[25] RES INST HIGH ENERGY PHYS, SEFT, SF-00014 HELSINKI, FINLAND

[26] UNIV LAUSANNE, CH-1015 LAUSANNE, SWITZERLAND

[27] IST NAZL FIS NUCL, I-73100 LECCE, ITALY

[28] UNIV LECCE, I-73100 LECCE, ITALY

[29] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87544 USA

[30] UNIV LYON 1, CNRS, IN2P3, INST PHYS NUCL LYON, F-69622 VILLEURBANNE, FRANCE

[31] CIEMAT, E-28040 MADRID, SPAIN

[32] IST NAZL FIS NUCL, I-20133 MILAN, ITALY

[33] INST THEORET & EXPT PHYS, MOSCOW 117259, RUSSIA

[34] IST NAZL FIS NUCL, I-80125 NAPLES, ITALY

[35] UNIV NAPLES, I-80125 NAPLES, ITALY

[36] UNIV CYPRUS, DEPT NAT SCI, NICOSIA, CYPRUS

[37] UNIV NIJMEGEN, NL-6525 ED NIJMEGEN, NETHERLANDS

[38] NATL INST NUCL PHYS & HIGH ENERGY PHYS, NL-6525 ED NIJMEGEN, NETHERLANDS

[39] OAK RIDGE NATL LAB, OAK RIDGE, TN 37831 USA

[40] CALTECH, PASADENA, CA 91125 USA

[41] IST NAZL FIS NUCL, I-06100 PERUGIA, ITALY

[42] UNIV PERUGIA, I-06100 PERUGIA, ITALY

[43] CARNEGIE MELLON UNIV, PITTSBURGH, PA 15213 USA

[44] PRINCETON UNIV, PRINCETON, NJ 08544 USA

[45] IST NAZL FIS NUCL, I-00185 ROME, ITALY

[46] UNIV ROMA LA SAPIENZA, I-00185 ROME, ITALY

[47] RUSSIAN ACAD SCI, INST NUCL PHYS, ST PETERSBURG, RUSSIA

[48] UNIV SALERNO, I-84100 SALERNO, ITALY

[49] IST NAZL FIS NUCL, I-84100 SALERNO, ITALY

[50] UNIV CALIF SAN DIEGO, SAN DIEGO, CA 92093 USA

来源：

PHYSICS LETTERS B | 1997年 / 407卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(97)00731-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The two-photon collision reaction e(+)e(-) --> e(+)e(-)l(+)l(-) has been studied at root s approximate to 91 GeV using the L3 detector at LEP for l = e, mu, tau. We have analysed untagged configurations where the two photons are quasi-real. Good agreement is found between our measurements and the O(alpha(4)) QED expectation. (C) 1997 Elsevier Science B.V.

引用

页码：341 / 350

页数：10

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