English

Upper limit on the eta -> pi+pi- branching ratio with the KLOE experiment

High Energy Physics - Experiment 2012-08-27 v2
Authors: KLOE collaboration
View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We have searched with the KLOE detector for the P and CP violating decay eta -> pi^+pi^- in a sample of 1.55 x 10^7 eta's from the decay phi -> eta gamma of phi mesons produced in e+e- annihilations at DAFNE. No signal is found. We obtain the upper limit BR(eta -> pi^+pi^-) < 1.3 x 10^-5 at 90% confidence level.

Keywords

eta decay KLOE experiment branching ratio P violation CP violation

Cite

@article{arxiv.hep-ex/0411030,
  title  = {Upper limit on the eta -> pi+pi- branching ratio with the KLOE experiment},
  author = {KLOE collaboration},
  journal= {arXiv preprint arXiv:hep-ex/0411030},
  year   = {2012}
}

Comments

8 pages, 3 figures

Related papers

View all related →
High Energy Physics - Experiment · Physics
Upper limit on the $\eta\to\pi^{+}\pi^{-}$ branching fraction with the KLOE experiment
D. Babusci, M. Berlowski, C. Bloise, F. Bossi +52
2021-03-02
High Energy Physics - Experiment · Physics
Upper Limit on the eta to gamma gamma gamma Branching Ratio with the KLOE Detector
The KLOE Collaboration, A. Aloisio
2008-11-26
High Energy Physics - Experiment · Physics
Measurement of the branching ratio and search for a CP violating asymmetry in the eta -> pi+pi-e+e-(gamma) decay at KLOE
KLOE Collaboration, F. Ambrosino, A. Antonelli, M. Antonelli +56
2010-12-09
High Energy Physics - Experiment · Physics
Measurement of the Branching Ratio of the KL -> pi+pi- decay with the KLOE Detector
KLOE collaboration
2012-08-27
High Energy Physics - Experiment · Physics
A new limit on the CP violating decay KS -> 3pi0 with the KLOE experiment
D. Babusci, D. Badoni, I. Balwierz-Pytko, G. Bencivenni +69
2013-05-24
High Energy Physics - Experiment · Physics
An Improved Limit on the Rate Of Decay K+ -> pi+ mu+ e-
R. Appel, G. S. Atoyan, B. Bassalleck, D. R. Bergman +32
2008-11-26
High Energy Physics - Experiment · Physics
Study of the Decay phi --> eta pi0 gamma with the KLOE detector
The KLOE Collaboration
2012-08-27
High Energy Physics - Experiment · Physics
Search for the decay phi -> K0 K0bar gamma with the KLOE experiment
KLOE Collaboration, F. Ambrosino, A. Antonelli, M. Antonelli +53
2014-11-18
High Energy Physics - Experiment · Physics
A New Upper Limit on the Decay $\eta\to e^{+}e^{-}$
CLEO Collaboration, T. Browder et al
2010-04-08
High Energy Physics - Experiment · Physics
An Improved upper limit on the decay K^+ -> pi^+ mu^+ e^-
Aleksey Sher, R. Appel, G. S. Atoyan, B. Bassalleck +23
2008-11-26
High Energy Physics - Experiment · Physics
Search for the Decay Kl -> pi0 e+ e-
A. Alavi-Harati
2008-11-26
High Energy Physics - Experiment · Physics
Search for the $ K_S to 3 \pi^0$ decay with the KLOE detector
M. Silarski
2013-02-20
High Energy Physics - Experiment · Physics
The upper limit on the $K^+ \to \pi^0\pi^0\pi^0e^+\nu$ decay
A. V. Kulik, S. N. Filippov, E. N. Gushchin, A. A. Khudyakov +25
2024-09-16
High Energy Physics - Experiment · Physics
Observation of the phi to pi+pi-pi+pi- Decay
2 Collaboration
2008-11-26
High Energy Physics - Experiment · Physics
Measurement of the absolute branching ratio of the K+ -> pi+ pi0 (gamma) decay with the KLOE detector
F. Ambrosino, A. Antonelli, M. Antonelli, F. Archilli +74
2008-11-26
High Energy Physics - Experiment · Physics
Light Meson Spectroscopy with the Kloe Experiment
The KLOE collaboration, B. Di Micco
2007-05-23
High Energy Physics - Experiment · Physics
Study of the process e+e- -> omega pi0 in the phi-meson mass region with the KLOE detector
The KLOE Collaboration, F. Ambrosino, A. Antonelli, M. Antonelli +61
2008-11-26
High Energy Physics - Experiment · Physics
Search for the CP symmetry violation in the decays of Ks mesons using the KLOE detector
M. Silarski
2013-02-20
High Energy Physics - Experiment · Physics
Search for phi to K0 K0bar gamma decay with KLOE
KLOE collaboration
2012-08-27
High Energy Physics - Experiment · Physics
Study of the Decay phi --> pi0 pi0 gamma with the KLOE Detector
KLOE Collaboration
2012-08-27
High Energy Physics - Experiment · Physics
eta Physics and phi Radiative Decays at Kloe
F. Ambrosino, A. Antonelli, M. Antonelli, C. Bacci +77
2007-06-13
High Energy Physics - Experiment · Physics
Measurement of the absolute branching ratio of the $K^+ \rightarrow \pi^+\pi^-\pi^+(\gamma)$ decay with the KLOE detector
2 Collaboration
2014-09-16
High Energy Physics - Experiment · Physics
A direct search for the CP-violating decay Ks->3p^0 with the KLOE detector at DAFNE
The KLOE collaboration
2012-08-27
High Energy Physics - Experiment · Physics
Upper limit on the Ks ---> 3 pi0 decay
M. N. Achasov, V. M. Aulchenko, A. V. Berdyugin, A. V. Bozhenok +21
2008-11-26
High Energy Physics - Experiment · Physics
Observation of the rare eta->e+e-e+e- decay with the KLOE experiment
The KLOE Collaboration, F. Ambrosino, A. Antonelli, M. Antonelli +86
2015-05-28