Time-dependent angular analysis of the decay B0sJ/?? and extraction of ??s and the CP-violating weak phase ?s by ATLAS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00441681" target="_blank" >RIV/68378271:_____/12:00441681 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/JHEP12(2012)072" target="_blank" >http://dx.doi.org/10.1007/JHEP12(2012)072</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP12(2012)072" target="_blank" >10.1007/JHEP12(2012)072</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Time-dependent angular analysis of the decay B0sJ/?? and extraction of ??s and the CP-violating weak phase ?s by ATLAS

Popis výsledku v původním jazyce

A measurement of Bs J/psi phi decay parameters, including the CP-violating weak phase phi_s and the decay width difference Delta Gamma_s is reported, using 4.9 fb-1 of integrated luminosity collected in 2011 by the ATLAS detector from LHC pp collisions at a centre- of-mass energy sqrt(s) = 7 TeV. The mean decay width Gamma_s and the transversity amplitudes |A0(0)|^2 and |A||(0)|^2 are also measured. The values reported for these parameters are: phi_s = 0.22 /pm 0.41 (stat.) /pm 0.10 (syst.) rad Delta Gamma_s = 0.053 /pm 0.021 (stat.) /pm 0.010 (syst.) ps-1 Gamma_s = 0.677 /pm 0.007 (stat.) /pm 0.004 (syst.) ps-1 |A0(0)|^2 = 0.528 /pm 0.006 (stat.) /pm 0.009 (syst.) |A||(0)|^2 = 0.220 /pm 0.008 (stat.) /pm 0.007 (syst.) where the values quoted for phi_sand Delta Gamma_s correspond to the solution compatible with the external measurements to which the strong phase delta perpendicular is constrained and where Delta Gamma_s is constrained to be positive.

Název v anglickém jazyce

Time-dependent angular analysis of the decay B0sJ/?? and extraction of ??s and the CP-violating weak phase ?s by ATLAS

Popis výsledku anglicky

A measurement of Bs J/psi phi decay parameters, including the CP-violating weak phase phi_s and the decay width difference Delta Gamma_s is reported, using 4.9 fb-1 of integrated luminosity collected in 2011 by the ATLAS detector from LHC pp collisions at a centre- of-mass energy sqrt(s) = 7 TeV. The mean decay width Gamma_s and the transversity amplitudes |A0(0)|^2 and |A||(0)|^2 are also measured. The values reported for these parameters are: phi_s = 0.22 /pm 0.41 (stat.) /pm 0.10 (syst.) rad Delta Gamma_s = 0.053 /pm 0.021 (stat.) /pm 0.010 (syst.) ps-1 Gamma_s = 0.677 /pm 0.007 (stat.) /pm 0.004 (syst.) ps-1 |A0(0)|^2 = 0.528 /pm 0.006 (stat.) /pm 0.009 (syst.) |A||(0)|^2 = 0.220 /pm 0.008 (stat.) /pm 0.007 (syst.) where the values quoted for phi_sand Delta Gamma_s correspond to the solution compatible with the external measurements to which the strong phase delta perpendicular is constrained and where Delta Gamma_s is constrained to be positive.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

<a href="/cs/project/LA08032" target="_blank" >LA08032: Mezinárodní experiment ATLAS-CERN</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

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Svazek periodika

2012

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

000313124000007

EID výsledku v databázi Scopus

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