Measurements of CP violating asymmetries in $B^0 \to K^0_S \pi^0$ decays - INSPIRE

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Measurements of CP violating asymmetries in $B^0 \to K^0_S \pi^0$ decays

BaBar

Collaboration

Mar, 2004

7 pages

Published in:

Phys.Rev.Lett. 93 (2004) 131805

e-Print:

hep-ex/0403001 [hep-ex]

DOI:

10.1103/PhysRevLett.93.131805

PDG:

\mathit C_{{{\mathit K}^{0}} {{\mathit \pi}^{0}} }

{{\mathit B}^{0}}

\rightarrow

{{\mathit K}^{0}}{{\mathit \pi}^{0}}

Report number:

SLAC-PUB-10363,
BABAR-PUB-04-005

Experiments:

SLAC-PEP2-BABAR

View in:

reference search47 citations

Citations per year

Abstract:

We present a measurement of the time-dependent CP-violating (CPV) asymmetries in

B^{0}\to K_{s}^{0}\pi^{0}

decays based on 124 million

\Upsilon(4S)\to B\bar{B}

decays collected with the BaBar detector at the PEP-II asymmetric-energy

B

Factory at SLAC. In a sample containing

122\pm 16

signal decays, we obtain the magnitude of the direct CPV asymmetry

C_{K_{s}^{0}\pi^{0}} = 0.40^{+0.27}_{-0.28} \pm 0.09

and the magnitude of the CPV asymmetry in the interference between mixing and decay

S_{K_{s}^{0}\pi^{0}} = 0.48^{+0.38}_{-0.47} \pm 0.06

where the first error is statistical and the second systematic.

11.30.Er
13.25.Hw
12.15.Hh
CP invariance
B mesons
meson hadronic decay
electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production

References(18)

Figures(0)

Observation of CP violation in the $B^0$ meson system

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPTH
)

et al.

- Phys.Rev.Lett. 87 (2001) 091801
•
e-Print:
- hep-ex/0107013
•
DOI:
- 10.1103/PhysRevLett.87.091801

Observation of large CP violation in the neutral $B$ meson system

Belle

Collaboration

•

Kazuo Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 87 (2001) 091802
•
e-Print:
- hep-ex/0107061
•
DOI:
- 10.1103/PhysRevLett.87.091802

Unitary Symmetry and Leptonic Decays

Nicola Cabibbo
(
- CERN
)

- Phys.Rev.Lett. 10 (1963) 531-533,
- Also in *Bologna 1984, Proceedings, Fifty years of weak-interaction physics* 648-649
•
DOI:
- 10.1103/PhysRevLett.10.531

CP Violation in the Renormalizable Theory of Weak Interaction

Makoto Kobayashi
(
- Kyoto U.
)
,
Toshihide Maskawa
(
- Kyoto U.
)

- Prog.Theor.Phys. 49 (1973) 652-657,
- Also in *Lichtenberg, D. B. (Ed.), Rosen, S. P. (Ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 218-223.
•
DOI:
- 10.1143/PTP.49.652

CP asymmetries in B decays with new physics in decay amplitudes

Yuval Grossman
(
- SLAC
)
,
Mihir P. Worah
(
- SLAC
)

- Phys.Lett.B 395 (1997) 241-249
•
e-Print:
- hep-ph/9612269
•
DOI:
- 10.1016/S0370-2693(97)00068-3

CP violating B decays in the standard model and supersymmetry

Marco Ciuchini
(
- CERN
)
,
E. Franco
(
- Rome U. and
- INFN, Rome
)
,
G. Martinelli
(
- Rome U. and
- INFN, Rome
)
,
A. Masiero
(
- SISSA, Trieste and
- Perugia U. and
- INFN, Perugia
)
,
L. Silvestrini
(
- Rome U., Tor Vergata and
- INFN, Rome
)

- Phys.Rev.Lett. 79 (1997) 978-981
•
e-Print:
- hep-ph/9704274
•
DOI:
- 10.1103/PhysRevLett.79.978

Measurement of time dependent CP violating asymmetries in B0 ---> phi K0(s), K+ K- K0(s), and eta-prime K0(s) decays

Belle

Collaboration

•

Kazuo Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 91 (2003) 261602
•
e-Print:
- hep-ex/0308035
•
DOI:
- 10.1103/PhysRevLett.91.261602

Measurements of CP-violating asymmetries and branching fractions in $B$ meson decays to $\eta^\prime K$

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.Lett. 91 (2003) 161801
•
e-Print:
- hep-ex/0303046
•
DOI:
- 10.1103/PhysRevLett.91.161801

Results on the CKM angle phi(1)(beta)

T.E. Browder
(
- Hawaii U.
)

- Int.J.Mod.Phys.A 19 (2004) 965-974
•
e-Print:
- hep-ex/0312024
•
DOI:
- 10.1142/S0217751X04018907

Measurements of charmless hadronic two body B meson decays and the ratio B(B ---> D K) / B(B ---> D pi)

CLEO

Collaboration

•

A. Bornheim
(
- Caltech
)

et al.

- Phys.Rev.D 68 (2003) 052002,
- Phys.Rev.D 75 (2007) 119907 (erratum)
•
e-Print:
- hep-ex/0302026
•
DOI:
- 10.1103/PhysRevD.75.119907

Rare hadronic B decays and direct CPV from BELLE and BABAR

T. Tomura
(
- Tokyo U.
)

e-Print:
- hep-ex/0305036

Measurements of branching fractions and CP-violating asymmetries in $B$ meson decays to charmless two-body states containing a $K^0$

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.Lett. 92 (2004) 201802
•
e-Print:
- hep-ex/0312055
•
DOI:
- 10.1103/PhysRevLett.92.201802

Interpreting the time dependent CP asymmetry in B0 ---> pi0 K(S)

Michael Gronau
(
- SLAC and
- Technion
)
,
Yuval Grossman
(
- SLAC and
- Technion and
- UC, Santa Cruz
)
,
Jonathan L. Rosner
(
- Cornell U., LEPP
)

- Phys.Lett.B 579 (2004) 331-339
•
e-Print:
- hep-ph/0310020
•
DOI:
- 10.1016/j.physletb.2003.11.015

The BaBar detector

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Nucl.Instrum.Meth.A 479 (2002) 1-116
•
e-Print:
- hep-ex/0105044
•
DOI:
- 10.1016/S0168-9002(01)02012-5

A study of time dependent CP-violating asymmetries and flavor oscillations in neutral $B$ decays at the $\Upsilon(4S)$

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.D 66 (2002) 032003
•
e-Print:
- hep-ex/0201020
•
DOI:
- 10.1103/PhysRevD.66.032003

Review of particle physics. Particle Data Group

et al.

- Phys.Rev.D 66 (2002) 010001
•
DOI:
- 10.1103/PhysRevD.66.010001

Statistical Model for electron-Positron Annihilation Into Hadrons

J.D. Bjorken
(
- SLAC
)
,
Stanley J. Brodsky
(
- SLAC
)

- Phys.Rev.D 1 (1970) 1416-1420
•
DOI:
- 10.1103/PhysRevD.1.1416

Measurement of the CP-violating asymmetry amplitude $\sin 2\beta$

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.Lett. 89 (2002) 201802
•
e-Print:
- hep-ex/0207042
•
DOI:
- 10.1103/PhysRevLett.89.201802