Measurement of the charged particle multiplicity of weakly decaying B hadrons

被引:9
作者
Abreu, P
Adam, W
Adye, T
Adzic, P
Ajinenko, I
Alekseev, GD
Alemany, R
Allport, PP
Almehed, S
Amaldi, U
Amato, S
Andersson, P
Andreazza, A
Antilogus, P
Apel, WD
Arnoud, Y
Asman, B
Augustin, JE
Augustinus, A
Baillon, P
Bambade, P
Barao, F
Barbier, R
Bardin, DY
Barker, G
Baroncelli, A
Barring, O
Battaglia, M
Baubillier, M
Becks, KH
Begalli, M
Beilliere, P
Belokopytov, Y
Benvenuti, AC
Berat, C
Berggren, M
Bertini, D
Bertrand, D
Besancon, M
Bianchi, F
Bigi, M
Bilenky, MS
Bizouard, MA
Bloch, D
Bonesini, M
Bonivento, W
Boonekamp, M
Booth, PSL
Borgland, AW
Borisov, G
机构
[1] LIP, IST, FCUL, PT-1000 Lisboa, Portugal
[2] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
[3] Univ Instelling Antwerp, Dept Phys, B-2610 Wilrijk, Belgium
[4] ULB VUB, IIHE, B-1050 Brussels, Belgium
[5] Univ Etat Mons, Fac Sci, B-7000 Mons, Belgium
[6] Univ Athens, Phys Lab, GR-10680 Athens, Greece
[7] Univ Bergen, Dept Phys, N-5007 Bergen, Norway
[8] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy
[9] Ist Nazl Fis Nucl, I-40126 Bologna, Italy
[10] Ctr Brasileiro Pesquisas Fis, BR-22290 Rio De Janeiro, Brazil
[11] Pontificia Univ Catolica Rio de Janeiro, Dept Fis, BR-22453 Rio De Janeiro, Brazil
[12] Univ Estadual Rio de Janeiro, Rio De Janeiro, Brazil
[13] Comenius Univ, Fac Math & Phys, SK-84215 Bratislava, Slovakia
[14] Coll France, Phys Corpusculaire Lab, IN2P3, CNRS, F-67031 Paris 05, France
[15] CERN, CH-1211 Geneva 23, Switzerland
[16] ULP, CNRS, IN2P3, Inst Rech Subatom, F-67037 Strasbourg, France
[17] Natl Ctr Sci Res Demokritos, Inst Nucl Phys, GR-15310 Athens, Greece
[18] Acad Sci Czech Republ, Inst Phys, FZU, Div High Energy Phys, CZ-18040 Prague 8, Czech Republic
[19] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy
[20] Ist Nazl Fis Nucl, I-16146 Genoa, Italy
[21] Univ Grenoble 1, CNRS, IN2P3, Inst Sci Nucl, F-38026 Grenoble, France
[22] Helsinki Inst Phys, HIP, FIN-00014 Helsinki, Finland
[23] Joint Nucl Res Inst, RU-101000 Moscow, Russia
[24] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany
[25] Inst Nucl Phys, PL-30055 Krakow, Poland
[26] Univ Min & Met, PL-30055 Krakow, Poland
[27] Univ Paris Sud, Lab Accelerateur Lineaire, IN2P3, CNRS, F-91405 Orsay, France
[28] Univ Lancaster, Sch Phys & Chem, Lancaster LA1 4YB, England
[29] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England
[30] Univ Paris 06, CNRS, IN2P3, LPNHE, F-75252 Paris 05, France
[31] Univ Paris 07, F-75252 Paris 05, France
[32] Univ Lund, Dept Phys, S-22363 Lund, Sweden
[33] Univ Lyon 1, CNRS, IN2P3, IPNL, F-69622 Villeurbanne, France
[34] Univ Aix Marseille 2, CPP, IN2P3, CNRS, F-13288 Marseille 09, France
[35] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy
[36] Ist Nazl Fis Nucl, I-20133 Milan, Italy
[37] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark
[38] Charles Univ, Nucl Ctr MFF, Areal MFF, CZ-18000 Prague 8, Czech Republic
[39] NIKHEF H, NL-1009 DB Amsterdam, Netherlands
[40] Natl Tech Univ Athens, Dept Phys, GR-15773 Athens, Greece
[41] Univ Oslo, Dept Phys, N-1000 Oslo 3, Norway
[42] Univ Oviedo, Dept Fis, E-33007 Oviedo, Spain
[43] Univ Oxford, Dept Phys, Oxford OX1 3RH, England
[44] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy
[45] Ist Nazl Fis Nucl, I-35131 Padua, Italy
[46] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
[47] Univ Rome 2, Dipartimento Fis, I-00173 Rome, Italy
[48] Ist Nazl Fis Nucl, I-00173 Rome, Italy
[49] CEA Saclay, DAPNIA, Serv Phys Particules, F-91191 Gif Sur Yvette, France
[50] Ist Nazl Fis Nucl, Ist Super Sanita, I-00161 Rome, Italy
关键词
D O I
10.1016/S0370-2693(98)00296-2
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
From the Z decays recorded in 1994 and 1995 by the DELPHI detector at LEP, the charged particle multiplicity of weakly decaying B hadrons was measured to be: 4.97 +/- 0.03 +/- 0.06 excluding the K-o and Lambda decay products. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:399 / 412
页数:14
相关论文
共 23 条
[1]  
ABREU P, 1995, Z PHYS C PART FIELDS, V66, P323
[2]   Performance of the DELPHI detector [J].
Abreu, P ;
Adam, W ;
Adye, T ;
Agasi, E ;
Ajinenko, I ;
Aleksan, R ;
Alekseev, GD ;
Alemany, R ;
Allport, PP ;
Almehed, S ;
Alvsvaag, SJ ;
Amaldi, U ;
Amato, S ;
Andreazza, A ;
Andrieux, ML ;
Antilogus, P ;
Apel, WD ;
Arnoud, Y ;
Asman, B ;
Augustin, JE ;
Augustinus, A ;
Baillon, P ;
Bambade, P ;
Barao, F ;
Barate, R ;
Barbiellini, G ;
Bardin, DY ;
Baroncelli, A ;
Barring, O ;
Barrio, JA ;
Bartl, W ;
Bates, MJ ;
Battaglia, M ;
Baubillier, M ;
Baudot, J ;
Becks, KH ;
Begalli, M ;
Beilliere, P ;
Belokopytov, Y ;
Benvenuti, AC ;
Berggren, M ;
Bertrand, D ;
Bianchi, F ;
Bigi, M ;
Bilenky, MS ;
Billoir, P ;
Bloch, D ;
Blume, M ;
Blyth, S ;
Bolognese, T .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 378 (1-2) :57-100
[3]   PRODUCTION OF CHARGED-PARTICLES, K-S(0),K+/-, P AND LAMBDA IN Z-]B(B)OVER-BAR EVENTS AND IN THE DECAY OF B-HADRONS [J].
ABREU, P ;
ADAM, W ;
ADYE, T ;
AGASI, E ;
AJINENKO, I ;
ALEKSAN, R ;
ALEKSEEV, GD ;
ALLPORT, PP ;
ALMEHED, S ;
ALMEIDA, FML ;
ALVSVAAG, SJ ;
AMALDI, U ;
AMATO, S ;
ANDREAZZA, A ;
ANDRIEUX, ML ;
ANTILOGUS, P ;
APEL, WD ;
ARNOUD, Y ;
ASMAN, B ;
AUGUSTIN, JE ;
AUGUSTINUS, A ;
BAILLON, P ;
BAMBADE, P ;
BARAO, F ;
BARATE, R ;
BARDIN, DY ;
BARKER, GJ ;
BARONCELLI, A ;
BARRING, O ;
BARRIO, JA ;
BARTL, W ;
BATES, MJ ;
BATTAGLIA, M ;
BAUBILLIER, M ;
BAUDOT, J ;
BECKS, KH ;
BEGALLI, M ;
BEILLIERE, P ;
BELOKOPYTOV, Y ;
BELTRAN, P ;
BENVENUTI, AC ;
BERGGREN, M ;
BERTRAND, D ;
BIANCHI, F ;
BIGI, M ;
BILENKY, MS ;
BILLOIR, P ;
BJARNE, J ;
BLOCH, D ;
BLUME, M .
PHYSICS LETTERS B, 1995, 347 (3-4) :447-466
[4]  
ABREU P, 1996, Z PHYS C, V70, P53196
[5]   Measurement of the average lifetime of b-hadrons in Z decays [J].
Acciarri, M ;
Adriani, O ;
Aguilar-Benitez, 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 ;
Banerjee, S ;
Banicz, K ;
Barczyk, A ;
Barillere, R ;
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 ;
Bourilkov, D ;
Bourquin, M ;
Boutigny, D ;
Braccini, S ;
Branson, JG ;
Brigljevic, V .
PHYSICS LETTERS B, 1998, 416 (1-2) :220-232
[6]   UNIVERSAL MULTIFRACTAL APPROACH TO INTERMITTENCY IN HIGH-ENERGY PHYSICS [J].
RATTI, SP ;
SALVADORI, G ;
GIANINI, G ;
LOVEJOY, S ;
SCHERTZER, D .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1994, 61 (02) :229-237
[7]  
ALBRECHT H, 1992, Z PHYS C, V54, P20
[8]   Particles and field .1. Review of particle physics [J].
Barnett, RM ;
Carone, CD ;
Groom, DE ;
Trippe, TG ;
Wohl, CG ;
Armstrong, B ;
Gee, PS ;
Wagman, GS ;
James, F ;
Mangano, M ;
Monig, K ;
Montanet, L ;
Feng, JL ;
Murayama, H ;
Hernandez, JJ ;
Manohar, A ;
AguilarBenitez, M ;
Caso, C ;
Crawford, RL ;
Roos, M ;
Tornqvist, NA ;
Hayes, KG ;
Hagiwara, K ;
Nakamura, K ;
Tanabashi, M ;
Olive, K ;
Honscheid, K ;
Burchat, PR ;
Shrock, RE ;
Eidelman, S ;
Schindler, RH ;
Gurtu, A ;
Hikasa, K ;
Conforto, G ;
Workman, RL ;
Grab, C ;
Amsler, C .
PHYSICAL REVIEW D, 1996, 54 (01) :1-+
[9]   THE DELPHI MICROVERTEX DETECTOR [J].
BINGEFORS, N ;
BORNER, H ;
BOULTER, R ;
CACCIA, M ;
CHABAUD, V ;
DIJKSTRA, H ;
EEROLA, P ;
GROSS, E ;
HORISBERGER, R ;
HUBBELING, L ;
HYAMS, B ;
KARLSSON, M ;
MAEHLUM, G ;
RATZ, K ;
RODITI, I ;
STRAVER, J ;
TRISCHUK, W ;
WEILHAMMER, P ;
DUFOUR, Y ;
BRUCKMAN, P ;
JALOCHA, P ;
KAPUSTA, P ;
TURALA, M ;
ZALEWSKA, A ;
LINDGREN, J ;
ORAVA, R ;
OSTERBERG, K ;
RONNQVIST, C ;
SAARIKKO, H ;
SAARIKKO, JP ;
TUUVA, T ;
DALMAGNE, B ;
BAMBADE, P ;
COUCHOT, F ;
FULDA, F ;
AMERY, A ;
BOOTH, PSL ;
CAMPION, AR ;
MCNULTY, R ;
SMITH, NA ;
ANDREAZZA, A ;
BATTAGLIA, M ;
BIFFI, P ;
BONVICINI, V ;
KUCEWICZ, W ;
MERONI, C ;
REDAELLI, N ;
STOCCHI, A ;
TRONCON, C ;
VEGNI, G .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 328 (03) :447-471
[10]   Fine tuning of track impact parameter resolution of the DELPHI detector [J].
Borisov, G ;
Mariotti, C .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 372 (1-2) :181-187