Measurement of theΛb0lifetime in the exclusive decayΛb0→J/ψΛ0inpp¯collisions ats=1.96 TeV

6533b823fe1ef96bd127f43f

RESEARCH PRODUCT

Measurement of theΛb0lifetime in the exclusive decayΛb0→J/ψΛ0inpp¯collisions ats=1.96 TeV

R. Magaña-villalba Kamil Augsten X. B. Bu S. W. Cho G. Obrant Gianluca Petrillo Shabnam Jabeen S. J. De Jong J. M. Hauptman Markus Wobisch Anna Goussiou Gregory R Snow Mark Richard James Williams G. Alkhazov Aaron Dominguez Robert Hirosky S. Cihangir S. Bhatia J. Zennamo M. C. Cousinou A. Dubey Cecilia Elena Gerber D. V. Bandurin Fabrice Couderc N. K. Mondal D. Boline H. T. Diehl R. Van Kooten Raymond Brock W. Geng W. Geng Sharon Hagopian A. Evdokimov A. K.a. Maciel G. A. García-guerra G. A. García-guerra G. Ginther G. Ginther R. K. Shivpuri R. Beuselinck Y. W. Liu A. A. Shchukin Andrew White M. D. Corcoran Liang Li Jason I. Brown A. Boehnlein Frank Fiedler W. M. Van Leeuwen N. Khalatyan A. Jonckheere G. Gutierrez Hongfang Liu J. Ellison A. Lobodenko B. C.k. Casey E. Kajfasz Philip Baringer A. Das S. Banerjee P. Svoisky Lev Dudko L. Han S. Uvarov S. Fuess George Alverson Jianming Qian D. Hedin Daria Zieminska P. A. Kasper Graham Wilson D. R. Claes T. Kurca T. Kurca L. S. Vertogradov J. Kraus D. Smirnov Gavin Davies John Hobbs M. H.l.s. Wang V. E. Bazterra R. Lopes De Sa T. R. Wyatt Zdenek Hubacek Y. T. Tsai Y. Ilchenko A. S. Santos Sergey Burdin Sergey Burdin M. Eads G. Sajot J. Barreto J. Orduna S. P. Denisov M. Padilla B. Quinn Marvin Johnson A. L. Lyon F. Miconi A. S. Ito A. Melnitchouk R. Bernhard J. Snow Thibault Guillemin Jose Andres Garcia-gonzalez E. De La Cruz-burelo Sung Keun Park J. K. Lim M. S. Rangel Anthony Ross Konstantinos Petridis K. Tschann-grimm M. P. Sanders Yurii Maravin Vladimir Gavrilov Oleg Brandt Michael Mulhearn J. Martínez-ortega Marc Besancon C. Schwanenberger Alice Bean Bjoern Penning Ketino Kaadze A. V. Kozelov Gordon Watts D. Menezes G. D. Alexeev Flera Rizatdinova Daniel Duggan Y. Scheglov S. Desai Petr Vokac W. E. Cooper Andrew Brandt R. Illingworth Alexander Grohsjean J. Clutter A. Jayasinghe V. V. Lipaev J. Lellouch Lev Uvarov Y. A. Yatsunenko M. Cooke S. Chevalier-théry Arnaud Duperrin Phillip Gutierrez R. Jesik K. A. Johns Ulrich Heintz Volker Buescher Kirti Ranjan Carsten Hensel Suneel Dutt A. Alton A. Alton M. Hohlfeld Horst Severini J. Weichert P. Neustroev I. Ripp-baudot A. Meyer P. N. Ratoff Elizaveta Shabalina Y. Peters Maksym Titov J. Sekaric Michael A. Strauss F. Badaud H. Hegab V. Parihar Pushpalatha C Bhat M. Jaffré Joseph Haley B. Hoeneisen Lee Sawyer Jan Stark J. F. Bartlett Hakjae Lee Christophe Royon Frank Filthaut L. Feng A. V. Popov Y. N. Kharzheev M. Diesburg Richard B. Lipton Jean-arcady Meyer L. Bagby Henry Lubatti T. Scanlon Guo-ming Chen S. Kermiche H. E. Fisk Suman Bala Beri V. Hynek G. Grenier G. Grenier A. P. Heinson H. D. Wahl Robert Kehoe Dmitri Tsybychev R. L. Mccarthy J. Joshi Alexander Kupco Marco Verzocchi Carlos Avila Avto Kharchilava Steven W. Shaw T. Hoang I. Katsanos S. Atkins Kristian Harder K. M. Chan N. Parua D. Vilanova Randy Ruchti Todd Adams Gustaaf Brooijmans A. Y. Verkheev M. Merkin Alexander Khanov A. Patwa D. Cutts M. M. Meijer S. Söldner-rembold M. A. Pleier Aran Garcia-bellido Gavin Grant Hesketh Gavin Grant Hesketh Frederic Deliot Christopher George Tully Suyong Choi Marcia Begalli T. Yasuda D. Edmunds Tiefu Zhao Shih-chang Lee J. Warchol Harald Fox Nikos Varelas S. W. Youn Bing Zhou Zhenyu Ye Meenakshi Narain Greg Landsberg V. Bunichev Patrick Slattery Yuri Gershtein Ruchika Nayyar Emily Johnson P. Salcido D. A. Stoyanova K. Herner Martin Grunewald P. L.m. Podesta-lerma P. L.m. Podesta-lerma C. L. Mcgivern U. Bassler Emilien Chapon L. Suter G. Golovanov Regina Demina Milos Lokajicek E. Camacho-pérez Maiko Takahashi I. A. Vasilyev Vipin Bhatnagar Darien Wood Brad Abbott C. P. Buszello Pierre Petroff Reinhard Schwienhorst S. Chakrabarti Yuehong Xie K. Soustruznik S. Blessing B. S. Acharya T. Head D.p. Brown P. F. Ding Scott Snyder R. Partridge R. Partridge P. Rubinov Kenneth Bloom G. C. Blazey Gregorio Bernardi D. Denisov R. Yamada V. L. Malyshev Jean-francois Grivaz M. Naimuddin Hal Evans Thomas Ferbel M. Prewitt P. Jonsson A. Pal Thomas Hebbeker Lars Sonnenschein Mary Beth Adams D. Chakraborty W. M. Lee Guennadi Borissov I. Heredia-de La Cruz Don Lincoln Erich Varnes S. Kulikov Neeti Parashar I. Razumov M. Zielinski Jiping Zhu J. Hays M. Vesterinen R. Madar P. Renkel S. Schlobohm H. Greenlee A. Bross M. Aoki Andy Haas Andy Haas V. M. Podstavkov D. K. Cho M. Fortner A. Chandra A. Croc Ph Gris V. M. Abazov V. Shary S. Greder Iain Alexander Bertram V. N. Evdokimov M. Rominsky V. A. Bezzubov J. P. Negret R. Luna-garcia R. Luna-garcia Michael Hildreth Darren Price Emanuela Barberis Yuji Enari S. Uzunyan Amnon Harel Ashok Kumar Tulika Bose V. V. Tokmenin G. Facini H. A. Neal J. T. Linnemann K. Yip K. J. Smith P. Verdier P. Verdier L. Stutte Wade Cameron Fisher A.s. Dyshkant R. D. Schamberger V. A. Kuzmin D. Gerbaudo Cecile Deterre I. Howley A. Sanchez-hernandez B. Sanghi L. Welty-rieger N. Prokopenko Pedro G Mercadante P. Skubic Andrew Askew W. C. Yang G. Savage Maxim Perfilov Hang Yin E. E. Boos S. Caughron Arnulf Quadt Heriberto Castilla-valdez Elemer Nagy K. Devaughan V. Simak Sabine Lammers Andreas Werner Jung D. Wicke N. Osman H. Li L. Bellantoni Mitchell Wayne H. Schellman J. M. Kohli D. Karmanov T. G. Zhao Stefan Grünendahl P. D. Grannis W. Ye Sudhir Malik Ia Iashvili Brajesh C Choudhary L. Zivkovic M. Buehler B. Tuchming T. Nunnemann B. Baldin P. Lebrun P. Lebrun Q. Z. Li I. Kiselevich A. Juste J. Osta Victor Daniel Elvira

subject

Physics Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics High Energy Physics::Phenomenology 0103 physical sciences Heavy quark effective theory High Energy Physics::Experiment Atomic physics Nuclear Experiment 010306 general physics Lambda 01 natural sciences

description

We measure the Lambda_b^0 lifetime in the fully reconstructed decay Lambda_b^0 -> J/psi Lambda^0 using 10.4 fb^-1 of ppbar collisions collected with the D0 detector at sqrt(s)=1.96 TeV. The lifetime of the topologically similar decay channel B^0 -> J/psi K^0_S is also measured. We obtain tau(Lambda_b^0) = 1.303 +- 0.075 (stat.) +- 0.035 (syst.) ps and tau(B^0) = 1.508 +- 0.025 (stat.) +- 0.043 (syst.) ps. Using these measurements, we determine the lifetime ratio of tau(Lambda_b^0)/tau(B^0) = 0.864 +- 0.052 (stat.) +- 0.033 (syst.).

year	journal	country	edition	language
2012-06-07	Physical Review D

https://doi.org/10.1103/physrevd.85.112003