Measurement of the $CP$ asymmetry in $B^+ \rightarrow K^+ \mu^+ \mu^-$ decays

A measurement of the CP asymmetry in B+→K+μ+μ- decays is presented using pp collision data, corresponding to an integrated luminosity of 1.0 fb-1, recorded by the LHCb experiment during 2011 at a center-of-mass energy of 7 TeV. The measurement is performed in seven bins of μ+μ- invariant mass squared in the range 0.05

Note:

16 pages including author list, 2 figures

13.20.He
11.30.Er
12.15.Mm
12.60.Jv
asymmetry: CP: measured
p p: scattering
LHC-B
B+: semileptonic decay
dimuon: mass spectrum
momentum transfer dependence

References(28)

Figures(4)

[1]

Differential branching fraction and angular analysis of the $B^{+} \rightarrow K^{+}\mu^{+}\mu^{-}$ decay

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 02 (2013) 105
•
e-Print:
- 1209.4284
•
DOI:
- 10.1007/JHEP02(2013)105

[2]

Measurement of the Differential Branching Fraction and Forward-Backward Asymmetry for $B \to K^{(*)}\ell^+\ell^-$

Belle

Collaboration

•

J.-T. Wei
(
- Taiwan, Natl. Taiwan U.
)

et al.

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•
e-Print:
- 0904.0770
•
DOI:
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[3]

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CDF

Collaboration

•

T. Aaltonen
(
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)

et al.

- Phys.Rev.Lett. 108 (2012) 081807
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e-Print:
- 1108.0695
•
DOI:
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[4]

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BaBar

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J.P. Lees
(
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et al.

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e-Print:
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•
DOI:
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[5]

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Christoph Bobeth
(
- TUM-IAS, Munich and
- Munich, Tech. U., Universe
)
,
Gudrun Hiller
(
- Dortmund U.
)
,
Danny van Dyk
(
- Dortmund U.
)
,
Christian Wacker
(
- Dortmund U.
)

- JHEP 01 (2012) 107
•
e-Print:
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•
DOI:
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[6]

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Wolfgang Altmannshofer
(
- Munich, Tech. U.
)
,
Patricia Ball
(
- Munich, Tech. U. and
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- Durham U.
)
,
Aoife Bharucha
(
- Durham U., IPPP and
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)
,
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)
,
David M. Straub
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)

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•
e-Print:
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•
DOI:
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[7]

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LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 110 (2013) 3, 031801
•
e-Print:
- 1210.4492
•
DOI:
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[8]

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Collaboration

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A.Augusto Alves, Jr.
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(
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)
,
G. Aglieri Rinella
(
- CERN
)
,
E. Albrecht
(
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)
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- INFN, Milan Bicocca
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,
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et al.

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•
e-Print:
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•
DOI:
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[10]

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A.A. Alves, Jr.
(
- INFN, Rome
)
,
L. Anderlini
(
- INFN, Florence
)
,
M. Anelli
(
- Frascati
)
,
R.Antunes Nobrega
(
- INFN, Rome
)
,
G. Auriemma
(
- INFN, Rome and
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)

et al.

- JINST 8 (2013) P02022
•
e-Print:
- 1211.1346
•
DOI:
- 10.1088/1748-0221/8/02/P02022

[11]

PYTHIA 6.4 Physics and Manual

Torbjorn Sjostrand
(
- Lund U., Dept. Theor. Phys.
)
,
Stephen Mrenna
(
- Fermilab
)
,
Peter Z. Skands
(
- Fermilab
)

- JHEP 05 (2006) 026
•
e-Print:
- hep-ph/0603175
•
DOI:
- 10.1088/1126-6708/2006/05/026

[12]

Handling of the generation of primary events in Gauss, the LHCb simulation framework, Nuclear Science Symposium Conference Record (NSS/MIC) (2010) 1155