Observation of the $B^0_s\to\eta'\eta'$ decay - INSPIRE

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Observation of the $B^0_s\to\eta'\eta'$ decay

LHCb

Collaboration

Mar 25, 2015

9 pages

Published in:

Phys.Rev.Lett. 115 (2015) 5, 051801

Published: Jul 28, 2015

e-Print:

1503.07483 [hep-ex]

DOI:

10.1103/PhysRevLett.115.051801

PDG:

\mathit A_{CP}({{\mathit B}^{+}}

\rightarrow

{{\mathit \eta}^{\,'}}{{\mathit K}^{+}}

Report number:

LHCB-PAPER-2014-065,
CERN-PH-EP-2015-073,
LHCB-PAPER-2014-065-

Experiments:

CERN-LHC-LHCb

View in:

reference search16 citations

Citations per year

Abstract: (APS)

The first observation of the Bs0→η′η′ decay is reported. The study is based on a sample of proton-proton collisions corresponding to 3.0 fb-1 of integrated luminosity collected with the LHCb detector. The significance of the signal is 6.4 standard deviations. The branching fraction is measured to be [3.31±0.64(stat)±0.28(syst)±0.12(norm)]×10-5, where the third uncertainty comes from the B±→η′K± branching fraction that is used as a normalization. In addition, the charge asymmetries of B±→η′K± and B±→ϕK±, which are control channels, are measured to be (-0.2±1.3)% and (+1.7±1.3)%, respectively. All results are consistent with theoretical expectations.

13.25.Hw
11.30.Er
12.15.Ff
12.15.Hh
p p: colliding beams
B/s0: branching ratio
branching ratio: ratio: measured
B/s0: hadronic decay
charge: asymmetry
p p: scattering

References(23)

Figures(4)

[1]

Two-body B meson decays to eta and eta-prime Observation of B ---> eta-prime K

CLEO

Collaboration

•

B.H. Behrens
(
- Colorado U.
)

et al.

- Phys.Rev.Lett. 80 (1998) 3710-3714
•
e-Print:
- hep-ex/9801012
•
DOI:
- 10.1103/PhysRevLett.80.3710

[2]

Review of Particle Physics

et al.

- Chin.Phys.C 38 (2014) 090001
•
DOI:
- 10.1088/1674-1137/38/9/090001

[3]

B meson decays to charmless meson pairs containing eta or eta' mesons

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.D 80 (2009) 112002
•
e-Print:
- 0907.1743
•
DOI:
- 10.1103/PhysRevD.80.112002

[4]

Evidence for B ---> eta-prime pi and improved measurements for B ---> eta-prime K

Belle

Collaboration

•

J. Schumann
(
- Natl. United U., Taiwan
)

et al.

- Phys.Rev.Lett. 97 (2006) 061802
•
e-Print:
- hep-ex/0603001
•
DOI:
- 10.1103/PhysRevLett.97.061802

[5]

Measurement of time dependent CP asymmetry parameters in B0 meson decays to omega K0(S), eta-prime K0, and pi0 K0(S)

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.D 79 (2009) 052003
•
e-Print:
- 0809.1174
•
DOI:
- 10.1103/PhysRevD.79.052003

[6]

Observation of time-dependent CP violation in B0 ---> eta-prime K0 decays and improved measurements of CP asymmetries in B0 ---> phi K0, K0(s) K0(s) K0(s) and B0 ---> J/psi K0 decays

Belle

Collaboration

•

K.-F. Chen

et al.

- Phys.Rev.Lett. 98 (2007) 031802,
- Conf.Proc.C 060726 (2006) 823-826,
•
e-Print:
- hep-ex/0608039
•
DOI:
- 10.1103/PhysRevLett.98.031802

[7]

{QCD} Factorization for Charmless Hadronic $B_s$ Decays Revisited

Hai-Yang Cheng
(
- Taiwan, Inst. Phys. and
- Brookhaven
)
,
Chun-Khiang Chua
(
- Taiwan, Chung Yuan Christian U.
)

- Phys.Rev.D 80 (2009) 114026
•
e-Print:
- 0910.5237
•
DOI:
- 10.1103/PhysRevD.80.114026

[8]

Phenomenological analysis of charmless decays B(s) ---> PP, PV, with QCD factorization

- Phys.Rev.D 68 (2003) 054003
•
e-Print:
- hep-ph/0211154
•
DOI:
- 10.1103/PhysRevD.68.054003

[9]

Charmless non-leptonic $B_s$ decays to $PP$ , $PV$ and $VV$ final states in the pQCD approach

et al.

- Phys.Rev.D 76 (2007) 074018
•
e-Print:
- hep-ph/0703162
•
DOI:
- 10.1103/PhysRevD.76.074018

[10]

Two body B decays with isosinglet final states in SCET

- Phys.Rev.D 74 (2006) 014003,
- Phys.Rev.D 74 (2006) 03901 (erratum)
•
e-Print:
- hep-ph/0601214
•
DOI:
- 10.1103/PhysRevD.74.014003

[11]

Flavor SU(3) analysis of charmless $B$ meson decays to two pseudoscalar mesons

Cheng-Wei Chiang
(
- Taiwan, Natl. Central U. and
- Taiwan, Inst. Phys.
)
,
Yu-Feng Zhou
(
- KEK, Tsukuba
)

- JHEP 12 (2006) 027
•
e-Print:
- hep-ph/0609128
•
DOI:
- 10.1088/1126-6708/2006/12/027

[12]

Measurement of CP violation in $B_s^0 \to \phi \phi$ decays

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.D 90 (2014) 5, 052011
•
e-Print:
- 1407.2222
•
DOI:
- 10.1103/PhysRevD.90.052011

[13]

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

[14]

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

[15]

Sensitivity of searches for new signals and its optimization

Giovanni Punzi
(
- Pisa, Scuola Normale Superiore and
- INFN, Pisa
)

- eConf C030908 (2003) MODT002,
•
e-Print:
- physics/0308063

[16]

LHCb Detector Performance

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Int.J.Mod.Phys.A 30 (2015) 07, 1530022
•
e-Print:
- 1412.6352
•
DOI:
- 10.1142/S0217751X15300227

[17]

A study of the radiative CASCADE transitions between the Upsilon-Prime and Upsilon resonances

Tomasz Skwarnicki
(
- Cracow, INP and
- DESY
)

[18]

Search for $b \to s \gamma$ in Exclusive Decays of $B$ Mesons

ARGUS

Collaboration

•

H. Albrecht
(
- DESY
)

et al.

- Phys.Lett.B 229 (1989) 304-308
•
DOI:
- 10.1016/0370-2693(89)91177-5

[19]

The Large-Sample Distribution of the Likelihood Ratio for Testing Composite Hypotheses

S.S. Wilks

- Annals Math.Statist. 9 (1938) 1, 60-62
•
DOI:
- 10.1214/aoms/1177732360

[20]

Measurement of the fragmentation fraction ratio $f_{s}/f_{d}$ and its dependence on $B$ meson kinematics

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 04 (2013) 001
•
e-Print:
- 1301.5286
•
DOI:
- 10.1007/JHEP04(2013)001

[21]

Measurement of the charge asymmetry in $B^{\pm}\rightarrow \phi K^{\pm}$ and search for $B^{\pm}\rightarrow \phi \pi^{\pm}$ decays

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Lett.B 728 (2014) 85-94
•
e-Print:
- 1309.3742
•
DOI:
- 10.1016/j.physletb.2013.11.036

[22]

Penguin-dominated B ---> PV decays in NLO perturbative QCD

- Phys.Rev.D 74 (2006) 094020
•
e-Print:
- hep-ph/0608277
•
DOI:
- 10.1103/PhysRevD.74.094020

[23]

QCD factorization for B ---> PP and B ---> PV decays

- Nucl.Phys.B 675 (2003) 333-415
•
e-Print:
- hep-ph/0308039
•
DOI:
- 10.1016/j.nuclphysb.2003.09.026