Precise Measurement Of The W-Boson Mass With The Collider Detector At Fermilab

T Aaltonen,S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, J A Appel,T Arisawa,A Artikov,J Asaadi,W Ashmanskas,B Auerbach,A Aurisano,F Azfar,W Badgett, T Bae, A Barbarogaltieri, V E Barnes, B A Barnett,J Guimaraes Da Costa,P Barria,P Bartos,M Bauce, F Bedeschi,D Beecher,S Behari, G Bellettini,J Bellinger,D Benjamin, A Beretvas,A Bhatti, I Bizjak,K R Bland,B Blumenfeld, A Bocci,A Bodek,D Bortoletto,J Boudreau, A Boveia, L Brigliadori,C Bromberg,E Brucken,J Budagov,H S Budd, K Burkett,G Busetto, P Bussey,P Butti,A Buzatu,A Calamba,S Camarda,M Campanelli,F Canelli,B Carls, D Carlsmith,R Carosi,S Carrillo,B Casal, M Casarsa, A Castro,P Catastini, D Cauz,V Cavaliere, M Cavallisforza,A Cerri, L Cerrito,Y C Chen, M Chertok,G Chiarelli,G Chlachidze,Kihyeon Cho,D Chokheli, A Clark,Christopher Clarke,M E Convery,J Conway,M Corbo,M Cordelli,C A Cox,D J Cox,M Cremonesi,D Cruz,Javier Cuevas,R Culbertson, N Dascenzo,M Datta,P De Barbaro, L Demortier, M Deninno, M Derrico,F Devoto,A Di Canto,B Di Ruzza,J R Dittmann, S Donati,M Donofrio,M Dorigo, A Driutti,K Ebina

PHYSICAL REVIEW D（2014）

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摘要

We present a measurement of the W-boson mass, M-W, using data corresponding to 2.2 fb(-1) of integrated luminosity collected in p (p) over bar collisions at root s = 1.96 TeV with the CDF II detector at the Fermilab Tevatron. The selected sample of 470 126 W -> ev candidates and 624 708 W -> mu nu candidates yields the measurement M-W = 80387 +/- 12 (stat) +/- 15(syst) = 80387 +/- 19 MeV/c(2). This is the most precise single measurement of the W-boson mass to date.

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