Measurement of the flavour-specific CP-violating asymmetry $a_{sl}^s$ in $B_s^0$ decays - INSPIRE

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Measurement of the flavour-specific CP-violating asymmetry $a_{sl}^s$ in $B_s^0$ decays

LHCb

Collaboration

Aug 5, 2013

9 pages

Published in:

Phys.Lett.B 728 (2014) 607-615

Published: Jan 20, 2014

e-Print:

1308.1048 [hep-ex]

DOI:

10.1016/j.physletb.2013.12.030

PDG: Re(

\epsilon _{{{\mathit B}_{{{s}}}^{0}}}

\vert \epsilon _{{{\mathit B}_{{{s}}}^{0}}}

\vert {}^{2}

Report number:

LHCB-PAPER-2013-033,
CERN-PH-EP-2013-141

Experiments:

CERN-LHC-LHCb

View in:

reference search94 citations

Citations per year

Abstract: (Elsevier)

The CP -violating asymmetry asls is studied using semileptonic decays of Bs0 and B¯s0 mesons produced in pp collisions at a centre-of-mass energy of 7 TeV at the LHC, exploiting a data sample corresponding to an integrated luminosity of 1.0 fb−1 . The reconstructed final states are Ds±μ∓ , with the Ds± particle decaying in the ϕπ± mode. The Ds±μ∓ yields are summed over B¯s0 and Bs0 initial states, and integrated with respect to decay time. Data-driven methods are used to measure efficiency ratios. We obtain asls=(−0.06±0.50±0.36)% , where the first uncertainty is statistical and the second systematic.

Note:

25 pages, 6 figures, published in Phys. Lett. B

CP: violation
B/s: semileptonic decay
decay: time
p p: scattering
asymmetry: CP: measured
CERN LHC Coll
efficiency
anti-B/s0: semileptonic decay
experimental results
LHC-B

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