Measurement Of The Lambda(0)(B) Lifetime In Lambda(0)(B)-> J/Psi Lambda(0) In P(P)Over-Bar Collisions At Root S=1.96 Tev
A. Abulencia,J. Adelman,T. Affolder,T. Akimoto,M. G. Albrow,D. Ambrose,S. Amerio,D. Amidei,A. Anastassov,K. Anikeev,A. Annovi,J. Antos,M. Aoki,G. Apollinari,J.-F. Arguin,T. Arisawa,A. Artikov,W. Ashmanskas,A. Attal,F. Azfar,P. Azzi-Bacchetta,P. Azzurri,N. Bacchetta,W. Badgett,A. Barbaro-Galtieri,V. E. Barnes,B. A. Barnett,S. Baroiant,V. Bartsch,G. Bauer,F. Bedeschi,S. Behari,S. Belforte,G. Bellettini,J. Bellinger,A. Belloni,D. Benjamin,A. Beretvas,J. Beringer,T. Berry,A. Bhatti,M. Binkley,D. Bisello,R. E. Blair,C. Blocker,B. Blumenfeld,A. Bocci,A. Bodek,V. Boisvert,G. Bolla,A. Bolshov,D. Bortoletto,J. Boudreau,A. Boveia,B. Brau,L. Brigliadori,C. Bromberg,E. Brubaker,J. Budagov,H. S. Budd,S. Budd,S. Budroni,K. Burkett,G. Busetto,P. Bussey,K. L. Byrum,S. Cabrera,M. Campanelli,M. Campbell,F. Canelli,A. Canepa,S. Carrillo, D. Carlsmith,R. Carosi,S. Carron,M. Casarsa,A. Castro,P. Catastini,D. Cauz,M. Cavalli-Sforza,A. Cerri,L. Cerrito,S. H. Chang,Y. C. Chen,M. Chertok,G. Chiarelli,G. Chlachidze,F. Chlebana,I. Cho,K. Cho,D. Chokheli,J. P. Chou,G. Choudalakis,S. H. Chuang,K. Chung,W. H. Chung,Y. S. Chung,M. Ciljak,C. I. Ciobanu,M. A. Ciocci,A. Clark,D. Clark,M. Coca,G. Compostella,M. E. Convery,J. Conway,B. Cooper,K. Copic,M. Cordelli,G. Cortiana,F. Crescioli,C. Cuenca Almenar,J. Cuevas,R. Culbertson,J. C. Cully,D. Cyr,S. DaRonco,S. D’Auria,T. Davies,M. D’Onofrio,D. Dagenhart,P. de Barbaro,S. De Cecco,A. Deisher,G. De Lentdecker,M. Dell’Orso,F. Delli Paoli,L. Demortier,J. Deng,M. Deninno,D. De Pedis,P. F. Derwent,G. P. Di Giovanni,C. Dionisi,B. Di Ruzza,J. R. Dittmann,P. DiTuro,C. Dörr,S. Donati,M. Donega,P. Dong,J. Donini,T. Dorigo,S. Dube,J. Efron,R. Erbacher, D. Errede,S. Errede,R. Eusebi,H. C. Fang,S. Farrington,I. Fedorko,W. T. Fedorko,R. G. Feild,M. Feindt,J. P. Fernandez,R. Field,G. Flanagan,A. Foland,S. Forrester,G. W. Foster,M. Franklin,J. C. Freeman,I. Furic,M. Gallinaro,J. Galyardt,J. E. Garcia,F. Garberson,A. F. Garfinkel,C. Gay,H. Gerberich,D. Gerdes,S. 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PHYSICAL REVIEW LETTERS(2007)
Cited 38|Views296
Abstract
We report a measurement of the Lambda(0)(b) lifetime in the exclusive decay Lambda(0)(b)-> J/psi Lambda(0) in p (p) over bar collisions at root s=1.96 TeV using an integrated luminosity of 1.0 fb(-1) of data collected by the CDF II detector at the Fermilab Tevatron. Using fully reconstructed decays, we measure tau(Lambda(0)(b))=1.593(-0.078)(+0.083)(stat)+/- 0.033(syst) ps. This is the single most precise measurement of tau(Lambda(0)(b)) and is 3.2 sigma higher than the current world average.
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