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First observation and study of $K^\pm \to \pi^\pm \pi^0 e^+ e^-$ decay at the NA48/2 experiment / Misheva, M H (Dubna, JINR) ; Anzivino, G ; Arcidiacono, R ; Balev, S ; Batley, J R ; Behler, M ; Bifani, S ; Biino, C ; Bizzeti, A ; Bloch-Devaux, B et al.
A sample of almost 2000 $K^\pm \to \pi^\pm \pi^0 e^+ e^-$ rare decays with a background contamination below 3% is observed for the first time by the NA48/2 experiment at CERN/SPS. The preliminary branching ratio in the full kinematic region is obtained to be $BR(K^\pm \to \pi^\pm \pi^0 e^+ e^-)$ = (4.06 ± 0.17) x $10^{-6}$ by analyzing the data set recorded in 3-month NA48/2 run during 2003. [...]
2015 - 4 p. - Published in : , pp. 237-240 Fulltext: PDF;
In : 50th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 21 - 28 Mar 2015, pp.237-240

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(91)

New results on kaon decays from NA48/2 / Morales, Cristina (Mainz U., Inst. Phys.)
Recent results from the NA48/2 experiment are presented. The $\pi\pi$ scattering lengths $a_0^0$ and $a_0^2$ have been extracted from the cusp in the $M_{00}^2$ distribution of $K^\pm \to \pi^\pm \pi^0 \pi^0$ decays and from the $K^\pm \to \pi^+ \pi^- e^\pm \nu$ phase shift $\delta$. [...]
arXiv:0805.3312.- 2008 - 4 p. - Published in : , pp. 311-314 Fulltext: 1422664_311-314 - PDF; arXiv:0805.3312 - PDF; External link: Fulltext
In : 43rd Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 08 - 15 Mar 2008, pp.311-314

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(66)

Study of the $K^{\pm} \to \pi^{\pm} \pi^0 \gamma$ decays at the NA48/2 experiment at the CERN SPS / Goy-López, Silvia
CERN-THESIS-2006-094 - Orsay : Orsay, 2006. - 181 p.

Full text - CERN library copies

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(59)

Model independent measurement of the leptonic kaon decay $K^\pm \to \mu^\pm \nu_\mu e^+e^-$ and study of the $K^\pm \to \pi^\pm \pi^0 e^+e^-$ decay by the NA48/2 experiment at CERN / Bizzeti, Andrea (INFN, Florence ; Modena U.) /NA48/2
Two recent results on rare kaon decays are presented, based on $\sim 2 \times 10^{11} K^{\pm}$ decays recorded by the NA48/2 experiment at CERN SPS in 2003 and 2004. The branching ratio of the rare leptonic decay $K^{\pm} \to \mu^{\pm} \nu_{\mu} e^{+}e^{-}$ has been measured in the region of large $e^+ e^-$ invariant mass $M_{ee} \geq 140$ MeV/c$^2$, where low energy QCD contributions become important and can be calculated in the framework of Chiral Perturbation Theory (ChPT). [...]
SISSA, 2018 - 5 p. - Published in : PoS DIS2017 (2018) 187 Fulltext: PDF; External link: PoS server
In : 25th International Workshop on Deep Inelastic Scattering and Related Topics, Birmingham, UK, 03 - 07 Apr 2017, pp.187

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(55)

First observation and study of the $K^{\pm} \rightarrow \pi^{\pm} \pi^0 e^+ e^-$ decay with the NA48/2 experiment at CERN / Bloch-Devaux, B (Turin U.) /NA48/2 Collaboration
The first observation of the rare decay $K^{\pm} \rightarrow \pi^{\pm} \pi^0 e^+ e^-$ is reported by the NA48/2 experiment at CERN, based on 4919 candidates with 4.9% background contamination. From the analysis of 1.7 × 10$^{11}$ kaon decays collected in 2003–2004, the branching ratio in the full kinematic region is measured to be BR ($K^{\pm} \rightarrow \pi^{\pm} \pi^0 e^+ e^-$)= (4.24 ± 0.14) × 10$^{-6}$. [...]
2020 - 6 p. - Published in : J. Phys.: Conf. Ser. 1526 (2020) 012004 Fulltext: PDF;
In : International Conference on Kaon Physics 2019, Perugia, Italy, 10 - 13 Sep 2019, pp.012004

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(53)

Recent QCD results from the NA48/2 experiment / Anzivino, Giuseppina (INFN, Perugia ; Perugia U.) /NA48/2
The NA48/2 experiment collected data in 2003 and 2004 with the main purpose to study direct CP violation in charged kaons decaying in three pions. Thanks to the huge statistics collected, other studies are also possible. [...]
2018 - 5 p. - Published in : Nucl. Part. Phys. Proc. 300-302 (2018) 126-130
In : 21th High-Energy Physics International Conference in Quantum Chromodynamics, Montpellier, France, 2 - 6 Jul 2018, pp.126-130

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(50)

The $K^\pm \rightarrow \pi^{\pm} \pi^0 e^+ e^-$ decay: first observation and study with the NA48/2 experiment at CERN / Anzivino, Giuseppina (INFN, Perugia ; Perugia U.) /NA48/2 Collaboration
The NA48/2 experiment collected data in 2003 and 2004 with the main purpose to study direct CP violation in charged kaons decaying into three pions. Thanks to the huge statistics collected, other studies are also possible. [...]
SISSA, 2020 - 6 p. - Published in : PoS EPS-HEP2019 (2020) 237 Fulltext from publisher: PDF;
In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.237

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(48)

Recent NA48/2 results on rare kaon decays / Madigozhin, Dmitry (Dubna, JINR) /NA48/2 Collaboration
NA48/2 results contributing to ChPT testing are presented. A sample of 1663 events of the rare decay $K^{\pm}$ $\to$ $\mu^{\pm} ν e^+e^-$ has been selected with a minimum $e^+e^-$ effective mass of 140 MeV. [...]
2019 - 10 p. - Published in : EPJ Web Conf. 206 (2019) 05001 Fulltext: PDF;
In : 48th International Symposium on Multiparticle Dynamics, Singapore, 3 - 7 Sep 2018, pp.05001

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(36)

Measurements of $K_{e4}$ and $K^{\pm} \to \pi^{0} \pi^{0} \pi^{\pm}$ decays / Masetti, L. (Mainz U., Inst. Phys.)
The NA48/2 experiment at the CERN SPS collected in 2003 and 2004 large samples of the decays K+- -> pi+ pi- e+- nu (Ke4+-), K+- -> pi0 pi0 e+- nu (Ke400) and K+- -> pi0 pi0 pi+-. From the Ke4+- form factors and from the cusp in the M00^2 distribution of the K+- -> pi0 pi0 pi+- events, the pi-pi scattering lengths a00 and a20 could be extracted. [...]
hep-ex/0610071.- 2006 - 6 p. - Published in : 10.1142/9789812790873_0102 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-ex/0610071 PDF
In : 33rd International Conference on High-Energy Physics, Moscow, Russian Federation, 26 Jul - 2 Aug 2006, pp.543-546

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Measurement of the rare decay $K^\pm \to \pi^\pm \gamma \gamma$ / Petrov, Plamen (Louvain U., CP3) /NA48/2 ; NA62
SISSA, 2014 - Published in : PoS DIS2014 (2014) 166 Fulltext: PDF; External link: Published version from PoS
In : 22nd International Workshop on Deep-Inelastic Scattering and Related Subjects, Warsaw, Poland, 28 Apr - 02 May 2014, pp.166

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