11. Flavour Physics — II (Chair: E. P. Solodov)Open Access

RECENT RESULTS ON BR(K → πππ) AT KLOE/KLOE-2

PATRIZIA DE SIMONE and
on behalf of the KLOE/KLOE-2 Collaborations (D. Babusci, I. Balwierz-Pytko, G. Bencivenni, C. Bloise, F. Bossi, P. Branchini, A. Budano, L. Caldeira Balkest, G. Capon, F. Ceradini, P. Ciambrone, F. Curciarello, E. Czerwiński, E. Danè, V. De Leo, E. De Lucia, G. De Robertis, A. De Santis, P. De Simone, A. Di Cicco, A. Di Domenico, C. Di Donato, R. Di Salvo, D. Domenici, O. Erriquez, G. Fanizzi, A. Fantini, G. Felici, S. Fiore, P. Franzini, A. Gajos, P. Gauzzi, G. Giardina, S. Giovannella, E. Graziani, F. Happacher, L. Heijkenskjöld, B. Höistad, M. Jacewicz, T. Johansson, K. Kacprzak, D. Kamińska, A. Kupsc, J. Lee-Franzini, F. Loddo, S. Loffredo, G. Mandaglio, M. Martemianov, M. Martini, M. Mascolo, R. Messi, S. Miscetti, G. Morello, D. Moricciani, P. Moskal, F. Nguyen, A. Palladino, A. Passeri, V. Patera, I. Prado Longhi, A. Ranieri, P. Santangelo, I. Sarra, M. Schioppa, B. Sciascia, M. Silarski, C. Taccini, L. Tortora, G. Venanzoni, W. Wiślicki, M. Wolke, J. Zdebik.)

Laboratori Nazionali di Frascati dell' I.N.F.N., Frascati, Italy

and

on behalf of the KLOE/KLOE-2 Collaborations (D. Babusci, I. Balwierz-Pytko, G. Bencivenni, C. Bloise, F. Bossi, P. Branchini, A. Budano, L. Caldeira Balkest, G. Capon, F. Ceradini, P. Ciambrone, F. Curciarello, E. Czerwiński, E. Danè, V. De Leo, E. De Lucia, G. De Robertis, A. De Santis, P. De Simone, A. Di Cicco, A. Di Domenico, C. Di Donato, R. Di Salvo, D. Domenici, O. Erriquez, G. Fanizzi, A. Fantini, G. Felici, S. Fiore, P. Franzini, A. Gajos, P. Gauzzi, G. Giardina, S. Giovannella, E. Graziani, F. Happacher, L. Heijkenskjöld, B. Höistad, M. Jacewicz, T. Johansson, K. Kacprzak, D. Kamińska, A. Kupsc, J. Lee-Franzini, F. Loddo, S. Loffredo, G. Mandaglio, M. Martemianov, M. Martini, M. Mascolo, R. Messi, S. Miscetti, G. Morello, D. Moricciani, P. Moskal, F. Nguyen, A. Palladino, A. Passeri, V. Patera, I. Prado Longhi, A. Ranieri, P. Santangelo, I. Sarra, M. Schioppa, B. Sciascia, M. Silarski, C. Taccini, L. Tortora, G. Venanzoni, W. Wiślicki, M. Wolke, J. Zdebik.)

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https://doi.org/10.1142/S2010194514604207Cited by:0 (Source: Crossref)

Abstract

The KLOE experiment at the Frascati e⁺e⁻ collider DAΦNE, operating at the ϕ peak, provides unique opportunities for precision measurements of kaon branching ratios. We present the upper limit on the branching ratio of the CP violating decay K_S → 3π⁰ obtained with 1.7 fb^-1 of e⁺e⁻ collisions collected by the KLOE detector. We also present the new preliminary result of the branching ratio for K⁺ → π⁺π⁻π⁺(γ) using approximately 10% of all KLOE data.

This is an Open Access article published by World Scientific Publishing Company. It is distributed under the terms of the Creative Commons Attribution 3.0 (CC-BY) License. Further distribution of this work is permitted, provided the original work is properly cited.

Keywords:

PACS: 13.25.Es

References

A. Drago, et al. LNF-03/012 (2003) . Google Scholar
F. Bossi, et al., Precision Kaon and Hadron Physics with KLOE, La Rivista del Nuovo Cimento, Vol.31, serie 5, N.10, (2008) . Google Scholar
L. F. Li and L. Wolfenstain , Phys. Rev. D 21 , 178 ( 1980 ) . Crossref, Google Scholar
L. Maiani, N. Paver CP violation in K → 3π decays, and G. D'Ambrosio, G. Isidori, A. Pugliese CP and CPT measurements at DAΦNE, in The second DAΦNE physics handbook, Vol. 1, p.51-62 and 63-95, (1995) . Google Scholar
F. Ambrosino et al. , Phys. Lett. 619 , 61 ( 2005 ) . Crossref, Google Scholar
D. Babusci et al. , Phys. Lett. B 723 , 54 ( 2013 ) . Crossref, Google Scholar
M. Silarski, Search for the CP symmetry violation in the decays of Ks mesons using the KLOE detector, PhD thesis, Cracow (2012) . Google Scholar
F. Ambrosino et al. , JHEP 01 , 73 ( 2008 ) . Google Scholar
F. Ambrosino et al. , Phys. Lett. B 632 , 76 ( 2006 ) . Crossref, ADS, Google Scholar
F. Ambrosino et al. , JHEP 02 , 98 ( 2008 ) . Google Scholar
A. Aloisio et al. , Phys. Lett. B 597 , 139 ( 2004 ) . Crossref, Google Scholar
F. Ambrosino et al. , Phys. Lett. B 666 , 15 ( 2008 ) . Crossref, Google Scholar
M. Antonelli et al. , EPJC 69 , 399 ( 2010 ) . Crossref, ADS, Google Scholar
I. H. Chiang , Phys. Rev. D 6 , 1254 ( 1972 ) . Crossref, ADS, Google Scholar