Measurement of |Vcs| using W decays at LEP2

被引：35

作者：

Abreu, P

Adam, W

Adye, T

Adzic, P

Ajinenko, I

Alekseev, GD

Alemany, R

Allport, PP

Almehed, S

Amaldi, U

Amato, S

Anassontzis, EG

Andersson, P

Andreazza, A

Antilogus, P

Apel, WD

Arnoud, Y

Asman, B

Augustin, JE

Augustinus, A

Baillon, P

Bambade, P

Barao, F

Barbiellini, G

Barbier, R

Bardin, DY

Barker, G

Baroncelli, A

Battaglia, M

Baubillier, M

Becks, KH

Begalli, M

Beilliere, P

Belokopytov, Y

Belous, K

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

机构：

[1] FCUL, IST, LIP, PT-1000 Lisbon, Portugal

[2] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[3] Univ Instelling Antwerp, Dept Phys, BE-2610 Wilrijk, Belgium

[4] VUB, ULB, IIHE, BE-1050 Brussels, Belgium

[5] Univ Etat Mons, Fac Sci, BE-7000 Mons, Belgium

[6] Univ Athens, Phys Lab, GR-10680 Athens, Greece

[7] Univ Bergen, Dept Phys, NO-5007 Bergen, Norway

[8] Univ Bologna, Dipartimento Fis, IT-40126 Bologna, Italy

[9] Ist Nazl Fis Nucl, IT-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, Inst Fis, Rio De Janeiro, Brazil

[13] Comenius Univ, Fac Math & Phys, SK-84215 Bratislava, Slovakia

[14] Coll France, Phys Corpusculaire Lab, IN2P3, CNRS, FR-75231 Paris 05, France

[15] CERN, CH-1211 Geneva 23, Switzerland

[16] ULP, CNRS, IN2P3, Inst Rech Subatom, FR-67037 Strasbourg, France

[17] NCSR Demokritos, Inst Nucl Phys, GR-15310 Athens, Greece

[18] CAS, Inst Phys, FZU, Div High Energy Phys, CZ-18040 Prague 8, Czech Republic

[19] Univ Genoa, Dipartimento Fis, IT-16146 Genoa, Italy

[20] Ist Nazl Fis Nucl, IT-16146 Genoa, Italy

[21] Univ Grenoble 1, CNRS, IN2P3, Inst Nucl Sci, FR-38026 Grenoble, France

[22] Helsinki Inst Phys, FI-00014 Helsinki, Finland

[23] Joint Inst Nucl Res Dubna, RU-101000 Moscow, Russia

[24] Univ Karlsruhe, Inst Expt Kernphys, DE-76128 Karlsruhe, Germany

[25] Inst Nucl Phys, PL-30055 Krakow, Poland

[26] Univ Min & Met, PL-30055 Krakow, Poland

[27] Ctr Univ Paris Sud, Lab Accelerateur Lineaire, IN2P3, CNRS, FR-91405 Orsay, France

[28] Univ Lancaster, Sch Phys & Chem, Lancaster LA1 4YB, England

[29] FCUL, IST, LIP, PT-1000 Lisbon, Portugal

[30] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England

[31] Univ Paris 06, LPNHE, IN2P3, CNRS, FR-75252 Paris 05, France

[32] Univ Paris 07, FR-75252 Paris 05, France

[33] Univ Lund, Dept Phys, SE-22363 Lund, Sweden

[34] Univ Lyon 1, IPNL, CNRS, IN2P3, FR-69622 Villeurbanne, France

[35] Univ Aix Marseille 2, CPP, IN2P3, CNRS, FR-13288 Marseille 09, France

[36] Univ Milan, Dipartimento Fis, IT-20133 Milan, Italy

[37] Ist Nazl Fis Nucl, IT-20133 Milan, Italy

[38] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark

[39] Charles Univ, MFF, Nucl Ctr, CZ-18000 Prague 8, Czech Republic

[40] NIKHEF H, NL-1009 DB Amsterdam, Netherlands

[41] Natl Tech Univ Athens, Dept Phys, GR-15773 Athens, Greece

[42] Univ Oslo, Dept Phys, NO-1000 Oslo 3, Norway

[43] Univ Oviedo, Dept Fis, ES-33007 Oviedo, Spain

[44] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[45] Univ Padua, Dipartimento Fis, IT-35131 Padua, Italy

[46] Ist Nazl Fis Nucl, IT-35131 Padua, Italy

[47] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[48] Univ Rome 2, Dipartimento Fis, IT-00173 Rome, Italy

[49] Ist Nazl Fis Nucl, IT-00173 Rome, Italy

[50] Univ Roma III, Dipartimento Fis, IT-00146 Rome, Italy

来源：

PHYSICS LETTERS B | 1998年 / 439卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(98)01061-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Decays of W+/- bosons, produced at LEP2, have been used to measure the \V-cs\ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for \V-cs\ were extracted both from the measured hadronic branching ratio of W+/- decays and by tagging the flavour of hadronic jets produced in W+/- decays. Applying the two methods to the data collected during 1996 at energies of 161 and 172 GeV, DELPHI obtains \V-cs\ = 0.91(-0.14)(+0.15)(stat) +/- 0.05(syst). (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：209 / 224

页数：16

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