Search for the decay $B_s^0 \to D^{*\mp} \pi^\pm$

Aaij, R; Abellan Beteta, C; Adeva, B; Adinolfi, M; Adrover, C; Affolder, A; Ajaltouni, Z; Albrecht, J; Alessio, F; Alexander, M

doi:10.1103/PhysRevD.87.071101

Search for the decay $B_s^0 \to D^{*\mp} \pi^\pm$

LHCb

Collaboration

Feb 26, 2013

14 pages

Published in:

Phys.Rev.D 87 (2013) 071101

Published: Apr 23, 2013

e-Print:

1302.6446 [hep-ex]

DOI:

10.1103/PhysRevD.87.071101

PDG:

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

\rightarrow

{{\mathit D}^{*\mp}}{{\mathit \pi}^{\pm}}

Report number:

CERN-PH-EP-2013-025,
LHCB-PAPER-2012-056

Experiments:

CERN-LHC-LHCb

View in:

pdf

reference search14 citations

Citations per year

Abstract: (arXiv)

A search for the decay

B_s^0 \to D^{*\mp} \pi^\pm

is presented using a data sample corresponding to an integrated luminosity of

1.0 \ {\rm fb}^{-1}

of

pp

collisions collected by LHCb. This decay is expected to be mediated by a

W

-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help to understand the mechanism behind related decays such as

B_s^0 \to \pi^+\pi^-

and

B_s^0 \to D \overline{D}

. Systematic uncertainties are minimised by using

B^0 \to D^{*\mp} \pi^\pm

as a normalisation channel. We find no evidence for a signal, and set an upper limit on the branching fraction of

{\cal B}(B_s^0 \to D^{*\mp} \pi^\pm) < 6.1\,\left(7.8\right) \times 10^{-6}

at 90% (95%) confidence level.

p p: scattering
B/s0: branching ratio: upper limit
LHC-B
W: exchange
B/s0: hadronic decay
D*(2010): hadronic decay
experimental results
CERN LHC Coll
B/s0 --> D*(2010) pi+
D*(2010) --> anti-D0 pi-

References(24)

Figures(11)

[1]

First observations of $\bar{B}_s^0 \to D^+D^-$ , $D_s^+D^-$ and $D^0\bar{D}^0$ decays

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.D 87 (2013) 9, 092007
•
e-Print:
- 1302.5854
•
DOI:
- 10.1103/PhysRevD.87.092007

[2]

Measurement of $b$ -hadron branching fractions for two-body decays into charmless charged hadrons

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 10 (2012) 037
•
e-Print:
- 1206.2794
•
DOI:
- 10.1007/JHEP10(2012)037

[3]

Broken SU(3) symmetry in two-body B decays

Michael Gronau
(
- Technion
)
,
Oscar F. Hernandez
(
- Montreal U.
)
,
David London
(
- Montreal U.
)
,
Jonathan L. Rosner
(
- Chicago U., EFI and
- Chicago U.
)

- Phys.Rev.D 52 (1995) 6356-6373
•
e-Print:
- hep-ph/9504326
•
DOI:
- 10.1103/PhysRevD.52.6356

[4]

New strategies to obtain insights into CP violation through B(s) ---> D(s)+- K-+, D(s)+- K-+, ... and B(d) ---> D+- pi-+, D+- pi-+, ... decays

Robert Fleischer
(
- CERN
)

- Nucl.Phys.B 671 (2003) 459-482
•
e-Print:
- hep-ph/0304027
•
DOI:
- 10.1016/j.nuclphysb.2003.08.010

[5]

Rescattering Contributions to rare B-Meson Decays

Michael Gronau
(
- Technion
)
,
David London
(
- Montreal U.
)
,
Jonathan L. Rosner
(
- Chicago U., EFI and
- Chicago U.
)

- Phys.Rev.D 87 (2013) 3, 036008
•
e-Print:
- 1211.5785
•
DOI:
- 10.1103/PhysRevD.87.036008

[6]

First evidence for the annihilation decay mode $B^{+} \to D_{s}^{+} \phi$

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 02 (2013) 043
•
e-Print:
- 1210.1089
•
DOI:
- 10.1007/JHEP02(2013)043

[7]

Branching fraction measurement of $B^0 \to D^{()} + \pi^{-}$ , $B^{-} \to D^{()} 0 \pi^{-}$ and isospin analysis of $\bar{B} \to D^{(*)} \pi$ decays

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.D 75 (2007) 031101
•
e-Print:
- hep-ex/0610027
•
DOI:
- 10.1103/PhysRevD.75.031101

[8]

Review of Particle Physics (RPP)

J. Beringer
(
- LBL, Berkeley
)
,
J.F. Arguin
(
- LBL, Berkeley and
- Montreal U.
)
,
R.M. Barnett
(
- LBL, Berkeley
)
,
K. Copic
(
- LBL, Berkeley
)
,
O. Dahl
(
- LBL, Berkeley
)

et al.

- Phys.Rev.D 86 (2012) 010001
•
DOI:
- 10.1103/PhysRevD.86.010001

[9]

The LHCb Detector at the LHC

LHCb

Collaboration

•

A.Augusto Alves, Jr.
(
- Rio de Janeiro, CBPF
)

et al.

- JINST 3 (2008) S08005
•
DOI:
- 10.1088/1748-0221/3/08/S08005

[10]

The LHCb Trigger and its Performance in 2011

R Aaij
(
- Nikhef, Amsterdam
)
,
J Albrecht
(
- CERN
)
,
F Alessio
(
- CERN
)
,
S Amato
(
- Rio de Janeiro Federal U.
)
,
E Aslanides
(
- Marseille, CPPM
)

et al.

- JINST 8 (2013) P04022
•
e-Print:
- 1211.3055
•
DOI:
- 10.1088/1748-0221/8/04/P04022

[11]

Performance of the LHCb RICH detector at the LHC

M. Adinolfi
(
- Bristol U.
)
,
G. Aglieri Rinella
(
- CERN
)
,
E. Albrecht
(
- CERN
)
,
T. Bellunato
(
- INFN, Milan Bicocca
)
,
S. Benson
(
- Edinburgh U.
)

et al.

- Eur.Phys.J.C 73 (2013) 2431
•
e-Print:
- 1211.6759
•
DOI:
- 10.1140/epjc/s10052-013-2431-9

[12]

Observation of $B^0 \to \bar{D}^0 K^+ K^-$ and evidence of $B^0_s \to \bar{D}^0 K^+ K^-$

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 109 (2012) 131801
•
e-Print:
- 1207.5991
•
DOI:
- 10.1103/PhysRevLett.109.131801

[13]

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

[14]

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