Enhanced $B_s - \bar{B}_s$ lifetime difference and anomalous like-sign dimuon charge asymmetry from new physics in $B_s \to  \tau^+ \tau^-$

Dighe, Amol; Kundu, Anirban; Nandi, Soumitra

doi:10.1103/PhysRevD.82.031502

Enhanced $B_s - \bar{B}_s$ lifetime difference and anomalous like-sign dimuon charge asymmetry from new physics in $B_s \to \tau^+ \tau^-$

Amol Dighe
(
- Tata Inst.
)
,
Anirban Kundu
(
- Calcutta U.
)
,
Soumitra Nandi
(
- Turin U. and
- INFN, Turin
)

May, 2010

5 pages

Published in:

Phys.Rev.D 82 (2010) 031502

e-Print:

1005.4051 [hep-ph]

DOI:

10.1103/PhysRevD.82.031502

Report number:

CU-PHYSICS-03-2010,
TIFR-TH-10-12

View in:

ADS Abstract Service

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reference search85 citations

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Abstract: (arXiv)

New physics models that increase the decay rate of

B_s \to \tau^+ \tau^-

contribute to the absorptive part of

B_s

--

\bar{B}_s

mixing, and may enhance

\Delta\Gamma_s

all the way up to its current experimental bound. In particular, the model with a scalar leptoquark can lead to a significant violation of the expectation

\Delta\Gamma_s \leq \Delta\Gamma_s

(SM). It can even allow regions in the

\Delta\Gamma_s

-

\beta_s

parameter space that are close to the best fit obtained by CDF and D\{O} through

B_s \to J/\psi \phi

. In addition, it can help explain the anomalous like-sign dimuon charge asymmetry observed recently by D\O. A measurement of

BR(B_s \to \tau^+ \tau^-)

is thus crucial for a better understanding of new physics involved in

B_s

--

\bar{B}_s

mixing.

Note:

v3: 5 pages, 3 eps figures, Version to be published in Phys. Rev. D, Rapid Communications

13.20.He
12.60.-i
13.25.Hw
14.40.Nd
B mesons
Lifetime difference
Dimuon asymmetry
Leptoquarks
Physics beyond the Standard Model
charge: asymmetry

References(50)

Figures(3)

Probing new physics through $B$ mixing: Status, benchmarks and prospects

Patricia Ball
(
- Durham U., IPPP and
- CERN
)
,
Robert Fleischer
(
- CERN
)

- Eur.Phys.J.C 48 (2006) 413-426
•
e-Print:
- hep-ph/0604249
•
DOI:
- 10.1140/epjc/s10052-006-0034-4

Review of Particle Physics

et al.

- Phys.Lett.B 667 (2008) 1-1340
•
DOI:
- 10.1016/j.physletb.2008.07.018

First direct two-sided bound on the $B^0_{s}$ oscillation frequency

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.Lett. 97 (2006) 021802
•
e-Print:
- hep-ex/0603029
•
DOI:
- 10.1103/PhysRevLett.97.021802

Measurement of the $B^0_{s}-\bar{B}^0_s$ Oscillation Frequency

CDF

Collaboration

•

A. Abulencia
(
- Illinois U., Urbana
)

et al.

- Phys.Rev.Lett. 97 (2006) 062003
•
e-Print:
- hep-ex/0606027
•
DOI:
- 10.1103/PhysRevLett.97.062003

Measurement of the $B^0_{s} - \bar{B}^0_s$ Oscillation Frequency

CDF

Collaboration

•

Matthew Jones
(
- Purdue U.
)

for the collaboration.

- AIP Conf.Proc. 870 (2006) 1, 116-123
•
DOI:
- 10.1063/1.2402603

The Unitarity Triangle Fit in the Standard Model and Hadronic Parameters from Lattice QCD: A Reappraisal after the Measurements of Delta m(s) and BR(B ---> tau nu(tau))

UTfit

Collaboration

•

M. Bona
(
- Annecy, LAPP
)

et al.

- JHEP 10 (2006) 081
•
e-Print:
- hep-ph/0606167
•
DOI:
- 10.1088/1126-6708/2006/10/081

Theoretical update of $B_s - \bar{B}_s$ mixing

Alexander Lenz
(
- Regensburg U.
)
,
Ulrich Nierste
(
- Karlsruhe U., TTP
)

- JHEP 06 (2007) 072
•
e-Print:
- hep-ph/0612167
•
DOI:
- 10.1088/1126-6708/2007/06/072

Lifetimes and oscillations of heavy mesons

Alexander Lenz
(
- Regensburg U.
)

- eConf C0610161 (2006) 028
•
e-Print:
- hep-ph/0612176

Theoretical status of $B_s$ -mixing and lifetimes of heavy hadrons

Alexander Lenz
(
- Regensburg U.
)

- Nucl.Phys.B Proc.Suppl. 177-178 (2008) 81-86
•
e-Print:
- 0705.3802
•
DOI:
- 10.1016/j.nuclphysbps.2007.11.089

First Flavor-Tagged Determination of Bounds on Mixing-Induced CP Violation in $B^0_{s} \to J/\psi \phi$ Decays

CDF

Collaboration

•

T. Aaltonen
(
- Helsinki Inst. of Phys.
)

et al.

- Phys.Rev.Lett. 100 (2008) 161802
•
e-Print:
- 0712.2397
•
DOI:
- 10.1103/PhysRevLett.100.161802

Measurement of $B^0_{s}$ mixing parameters from the flavor-tagged decay $B^0_{s} \to J/\psi \phi$

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.Lett. 101 (2008) 241801
•
e-Print:
- 0802.2255
•
DOI:
- 10.1103/PhysRevLett.101.241801

Angular distributions and lifetime differences in $B_s \to J/\psi \phi$ decays

Amol S. Dighe
(
- Chicago U., EFI
)
,
Isard Dunietz
(
- Fermilab
)
,
Harry J. Lipkin
(
- Argonne and
- Weizmann Inst.
)
,
Jonathan L. Rosner
(
- Chicago U., EFI and
- Fermilab
)

- Phys.Lett.B 369 (1996) 144-150
•
e-Print:
- hep-ph/9511363
•
DOI:
- 10.1016/0370-2693(95)01523-X

Extracting CKM phases and $B_s - \bar{B}_s$ mixing parameters from angular distributions of nonleptonic $B$ decays

- Eur.Phys.J.C 6 (1999) 647-662
•
e-Print:
- hep-ph/9804253
•
DOI:
- 10.1007/s100520050372

Averages of $b-$ hadron and $c-$ hadron Properties at the End of 2007

HFLAV

Collaboration

•

E. Barberio

et al.

e-Print:
- 0808.1297

Resolving the sign ambiguity in $\Delta \Gamma_s$ with $B_s \to D_s K$

Soumitra Nandi
(
- Karlsruhe U., TTP and
- Calcutta U.
)
,
Ulrich Nierste
(
- Karlsruhe U., TTP
)

- Phys.Rev.D 77 (2008) 054010
•
e-Print:
- 0801.0143
•
DOI:
- 10.1103/PhysRevD.77.054010

The B(s) width difference beyond the standard model

Yuval Grossman
(
- Weizmann Inst.
)

- Phys.Lett.B 380 (1996) 99-105
•
e-Print:
- hep-ph/9603244
•
DOI:
- 10.1016/0370-2693(96)00482-0

Universal unitarity triangle and physics beyond the standard model

A.J. Buras
(
- Munich, Tech. U.
)
,
P. Gambino
(
- CERN
)
,
M. Gorbahn
(
- Munich, Tech. U.
)
,
S. Jager
(
- Munich, Tech. U.
)
,
L. Silvestrini
(
- Munich, Tech. U. and
- Rome U. and
- INFN, Rome
)

- Phys.Lett.B 500 (2001) 161-167
•
e-Print:
- hep-ph/0007085
•
DOI:
- 10.1016/S0370-2693(01)00061-2

Possibility of large lifetime differences in neutral $B$ meson systems

- Phys.Rev.D 76 (2007) 054005
•
e-Print:
- 0705.4547
•
DOI:
- 10.1103/PhysRevD.76.054005

Evidence for an Anomalous Like-Sign Dimuon Charge Asymmetry

D0

Collaboration

•

Victor Mukhamedovich Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.D 82 (2010) 032001
•
e-Print:
- 1005.2757
•
DOI:
- 10.1103/PhysRevD.82.032001

CP violating lepton asymmetries from $B$ decays and their implication for supersymmetric flavor models

Lisa Randall
(
- MIT, LNS
)
,
Shu-fang Su
(
- MIT, LNS
)

- Nucl.Phys.B 540 (1999) 37-57
•
e-Print:
- hep-ph/9807377
•
DOI:
- 10.1016/S0550-3213(98)00766-4

Lepton Number as the Fourth Color

Jogesh C. Pati
(
- Maryland U.
)
,
Abdus Salam
(
- ICTP, Trieste and
- Imperial Coll., London
)

- Phys.Rev.D 10 (1974) 275-289,
- Phys.Rev.D 11 (1975) 703-703 (erratum)
•
DOI:
- 10.1103/PhysRevD.10.275

Unity of All Elementary Particle Forces

H. Georgi
(
- Harvard U.
)
,
S.L. Glashow
(
- Harvard U.
)

- Phys.Rev.Lett. 32 (1974) 438-441,
- Also in *Lichtenberg, D.B. (ed.), Rosen, S.P. (ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 492-495, and in *Froggatt, C.D., Nielsen, H.B.: Origin of symmetries* 330-333
•
DOI:
- 10.1103/PhysRevLett.32.438

LIGHT LEPTOQUARKS

Barbara Schrempp
(
- Hamburg U.
)
,
Fridger Schrempp
(
- Hamburg U.
)

- Phys.Lett.B 153 (1985) 101-107
•
DOI:
- 10.1016/0370-2693(85)91450-9

Production of Leptoquarks From Superstring Models in $e p$ Colliders

A. Dobado
(
- Madrid, CIEMAT and
- Madrid, Polytechnic U.
)
,
M.J. Herrero
(
- LBL, Berkeley
)
,
C. Munoz
(
- Madrid, Autonoma U.
)

- Phys.Lett.B 191 (1987) 449-455
•
DOI:
- 10.1016/0370-2693(87)90638-1

Production of $E(6)$ Scalar Leptoquarks in $e p$ Collisions

John F. Gunion
(
- UC, Davis
)
,
Ernest Ma
(
- Hawaii U.
)

- Phys.Lett.B 195 (1987) 257-264
•
DOI:
- 10.1016/0370-2693(87)91205-6

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Enhanced Bs−BˉsB_s - \bar{B}_sBs​−Bˉs​ lifetime difference and anomalous like-sign dimuon charge asymmetry from new physics in Bs→τ+τ−B_s \to \tau^+ \tau^-Bs​→τ+τ−

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Enhanced $B_s - \bar{B}_s$ lifetime difference and anomalous like-sign dimuon charge asymmetry from new physics in $B_s \to \tau^+ \tau^-$