Measurement of the ? b 0 lifetime and mass in the ATLAS experiment
Measurement of the ? b 0 lifetime and mass in the ATLAS experiment
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的测量?
DOI:
10.1103/physrevd.87.032002
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发表时间:
2013
影响因子:
5
通讯作者:
Aad G
中科院分区:
文献类型:
--
作者:
Aad G
A measurement of thelifetime and mass in the decay channelis <?format ?>presented. The analysis uses a signal sample of about 2200anddecays that are reconstructed inof ATLAScollision data collected in 2011 at the LHC center-of-mass energy of 7 TeV. A simultaneous mass and decay time maximum likelihood fit is used to extract thelifetime and mass. They are measured to be <?format ?>τΛb=1.449±0.036(stat)±0.017(syst) ps and <?format ?>mΛb=5619.7±0.7(stat)±1.1(syst) MeV.