Measurement of the B-d(0) meson oscillation frequency

被引:16
作者
Acciarri, M
Adriani, O
AguilarBenitez, M
Ahlen, S
Alpat, B
Alcaraz, J
Alemanni, G
Allaby, J
Aloisio, A
Alverson, G
Alviggi, MG
Ambrosi, G
Anderhub, H
Andreev, VP
Angelescu, T
Antreasyan, D
Arefiev, A
Azemoon, T
Aziz, T
Bagnaia, P
Baksay, L
Ball, RC
Banerjee, S
Banicz, K
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
Biasini, M
Biland, A
Bilei, GM
Blaising, JJ
Blyth, SC
Bobbink, GJ
Bock, R
Bohm, A
Borgia, B
Boucham, A
Bourilkov, D
Bourquin, M
机构
[1] NIKHEF, NATL INST HIGH ENERGY PHYS, NL-1009 DB AMSTERDAM, NETHERLANDS
[2] UNIV MICHIGAN, ANN ARBOR, MI 48109 USA
[3] CNRS, LAB ANNECY LE VIEUX PHYS PARTICULES, IN2P3, F-74941 ANNECY LE VIEUX, FRANCE
[4] JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA
[5] UNIV BASEL, INST PHYS, CH-4056 BASEL, SWITZERLAND
[6] INST HIGH ENERGY PHYS, BEIJING 100039, PEOPLES R CHINA
[7] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY
[8] TATA INST FUNDAMENTAL RES, BOMBAY 400005, MAHARASHTRA, INDIA
[9] BOSTON UNIV, BOSTON, MA 02215 USA
[10] NORTHEASTERN UNIV, BOSTON, MA 02115 USA
[11] INST ATOM PHYS, R-76900 BUCHAREST, ROMANIA
[12] UNIV BUCHAREST, R-76900 BUCHAREST, ROMANIA
[13] HUNGARIAN ACAD SCI, CENT RES INST PHYS, H-1525 BUDAPEST, HUNGARY
[14] HARVARD UNIV, CAMBRIDGE, MA 02139 USA
[15] MIT, CAMBRIDGE, MA 02139 USA
[16] IST NAZL FIS NUCL, I-50125 FLORENCE, ITALY
[17] UNIV FLORENCE, I-50125 FLORENCE, ITALY
[18] CERN, EUROPEAN LAB PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND
[19] FBLJA, WORLD LAB, CH-1211 GENEVA 23, SWITZERLAND
[20] UNIV GENEVA, CH-1211 GENEVA 4, SWITZERLAND
[21] CHINESE UNIV SCI & TECHNOL, HEFEI 230029, ANHUI, PEOPLES R CHINA
[22] RES INST HIGH ENERGY PHYS, SEFT, SF-00014 HELSINKI, FINLAND
[23] UNIV LAUSANNE, CH-1015 LAUSANNE, SWITZERLAND
[24] IST NAZL FIS NUCL, I-73100 LECCE, ITALY
[25] UNIV LECCE, I-73100 LECCE, ITALY
[26] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87544 USA
[27] UNIV LYON 1, CNRS, INST PHYS NUCL LYON, IN2P3, F-69622 VILLEURBANNE, FRANCE
[28] IST NAZL FIS NUCL, I-80125 NAPLES, ITALY
[29] UNIV NAPLES, I-80125 NAPLES, ITALY
[30] UNIV CYPRUS, DEPT NAT SCI, NICOSIA, CYPRUS
[31] UNIV NIJMEGEN, NL-6525 ED NIJMEGEN, NETHERLANDS
[32] NATL INST NUCL PHYS & HIGH ENERGY PHYS, NL-6525 ED NIJMEGEN, NETHERLANDS
[33] OAK RIDGE NATL LAB, OAK RIDGE, TN 37831 USA
[34] CALTECH, PASADENA, CA 91125 USA
[35] IST NAZL FIS NUCL, I-06100 PERUGIA, ITALY
[36] UNIV PERUGIA, I-06100 PERUGIA, ITALY
[37] CARNEGIE MELLON UNIV, PITTSBURGH, PA 15213 USA
[38] PRINCETON UNIV, PRINCETON, NJ 08544 USA
[39] IST NAZL FIS NUCL, I-00185 ROME, ITALY
[40] UNIV ROMA LA SAPIENZA, I-00185 ROME, ITALY
[41] INST PHYS NUCL, ST PETERSBURG, RUSSIA
[42] UNIV SALERNO, I-84100 SALERNO, ITALY
[43] IST NAZL FIS NUCL, I-84100 SALERNO, ITALY
[44] UNIV CALIF SAN DIEGO, SAN DIEGO, CA 92093 USA
[45] UNIV SANTIAGO, DEPT FIS PARTICULAS ELEMENTALES, E-15706 SANTIAGO DE COMPOSTELA, SPAIN
[46] BULGARIAN ACAD SCI, CENT LAB MECHATRON & INSTRUMENTAT, BU-1113 SOFIA, BULGARIA
[47] KOREA ADV INST SCI & TECHNOL, CTR HIGH ENERGY PHYS, TAEJON 305701, SOUTH KOREA
[48] UNIV ALABAMA, UNIVERSITY, AL 35486 USA
[49] UNIV UTRECHT, NL-3584 CB UTRECHT, NETHERLANDS
[50] NIKHEF, NL-3584 CB UTRECHT, NETHERLANDS
关键词
D O I
10.1016/0370-2693(96)00768-X
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Time-dependent B-d(0)-(B) over bar(d)(0) mixing is studied using 1.5 million hadronic Z decays collected by L3. Semileptonic B decays are selected by requiring at least one reconstructed lepton in both thrust hemispheres. Charge correlations between the tagged leptons are studied as a function of proper time. The proper time of the b-hadron decay is measured by reconstructing the production and decay vertices using a silicon microvertex detector: The measured B-d(0) meson oscillation frequency corresponds to a mass difference Delta m(d) between the two B-d(0) mass eigenstates of Delta m(d) = (0.496(-0.051)(+0.053) (stat) +/- 0.043 (syst)) ps(-1).
引用
收藏
页码:487 / 498
页数:12
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