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Empirical parameterization of the $K^{\pm} \to \pi^{\pm}\pi^{0}\pi^{0}$ decay Dalitz plot / NA48/2 Collaboration
As first observed by the NA48/2 experiment at the CERN SPS, the

π^{0} π^{0}

$\pi^{0}\pi^{0}$ invariant mass (

M_{00}

$M_{00}$ ) distribution from

K^{\pm} \to π^{\pm} π^{0} π^{0}

$K^{\pm} \rightarrow \pi^{\pm}\pi^{0}\pi^{0}$ decay shows a cusp-like anomaly at

M_{00} = 2 m_{+}

$M_{00}=2m_{+}$ , where

m_{+}

$m_{+}$ is the charged pion mass. An analysis to extract the

π π

$\pi\pi$ scattering lengths in the isospin

I = 0

$I=0$ and

I = 2

$I=2$ states,

a_{0}

$a_{0}$ and

a_{2}

$a_{2}$ , respectively, has been recently reported. [...]
arXiv:1004.1005.- Geneva : CERN, 2010 - 9 p. - Published in : Phys. Lett. B 686 (2010) 101-108 Fulltext: arXiv:1004.1005 - PDF; CERN-PH-EP-2009-028 - PDF; S0370269310002236 - XML; External link: Preprint

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Determination of the S-wave $\pi \pi$ scattering lengths from a study of $K^{\pm} \to \pi^{\pm} \pi^{0} \pi^{0}$ decays / NA48/2 Collaboration
We report the results from a study of the full sample of

6.031 x 10^{7} K^{\pm} \to π^{\pm} π^{0} π^{0}

$~6.031 x 10^{7} K^{\pm} \to \pi^{\pm} \pi^{0} \pi^{0}$ decays recorded by the NA48/2 experiment at the CERN SPS. As first observed in this experiment, the

π^{0} π^{0}

$\pi^{0} \pi^{0}$ invariant mass (M_00) distribution shows a cusp-like anomaly in the region around

M_{00} = 2 m_{+}

$M_{00} = 2m_{+}$ , where m_{+} is the charged pion mass. [...]
arXiv:0912.2165; SLAC-PUB-14899.- Geneva : CERN, 2009 - 20 p. - Published in : Eur. Phys. J. C 64 (2009) 589-608 Fulltext: 10052_2009_1171_OnlinePDF - PDF; arXiv:0912.2165 - PDF; CERN-PH-EP-2009-010 - PDF; External link: SLAC Document Server

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Precise measurement of the $K^{\pm} \to \pi^{\pm}e^{+}e^{−}$ decay / NA48/2 collaboration
A sample of 7253

K^{\pm} \to π^{\pm} e^{+} e^{-} (γ)

$K^\pm\to\pi^\pm e^+e^-(\gamma)$ decay candidates with 1.0% background contamination has been collected by the NA48/2 experiment at the CERN SPS, allowing a precise measurement of the decay properties. The branching ratio in the full kinematic range was measured to be

B R = (3.11 \pm 0.12) \times 10^{- 7}

${\rm BR}=(3.11\pm0.12)\times 10^{-7}$ , where the uncertainty includes also the model dependence. [...]
arXiv:0903.3130; SLAC-PUB-14772; CERN-PH-EP-2009-005; CERN-PH-EP-2009-005.- Geneva : CERN, 2009 - 16 p. - Published in : Phys. Lett. B 677 (2009) 246-254 Fulltext: CERN-PH-EP-2009-005 - PDF; arXiv:0903.3130 - PDF; External link: SLAC Document Server

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The magnetized steel and scintillator calorimeters of the MINOS experiment / MINOS Collaboration
The Main Injector Neutrino Oscillation Search (MINOS) experiment uses an accelerator-produced neutrino beam to perform precision measurements of the neutrino oscillation parameters in the 'atmospheric neutrino' sector associated with muon neutrino disappearance. This long-baseline experiment measures neutrino interactions in Fermilab's NuMI neutrino beam with a near detector at Fermilab and again 735 km downstream with a far detector in the Soudan Underground Laboratory in northern Minnesota. [...]
arXiv:0805.3170; FERMILAB-PUB-08-126; FERMILAB-PUB-08-126.- 2008 - 87 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 596 (2008) 190-228 Preprint: PDF;

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First observation and measurement of the decay $K^{\pm} \to\pi^{\pm}e^{+}e^{-}\gamma$ / NA48/2 Collaboration
Using the full data set of the NA48/2 experiment, the decay

K^{\pm} \to π^{\pm} e^{+} e^{-} γ

$K^{\pm} \rightarrow \pi^{\pm} e^{+} e^{-}\gamma$ is observed for the first time, selecting 120 candidates with

7.3 \pm 1.7

$7.3 \pm 1.7$ estimated background events. With

K^{\pm} \to π^{\pm} π_{D}^{0}

$K^{\pm} \rightarrow \pi^{\pm} \pi^{0}_{D}$ as normalisation channel, the branching ratio is determined in a model-independent way to be Br

(K^{\pm} \to π^{\pm} e^{+} e^{-} γ, m_{e e γ} > 260

$(K^{\pm} \rightarrow \pi^{\pm} e^{+} e^{-}\gamma, m_{ee\gamma} > 260$ MeV/c

^{2}) = (1.19 \pm {0.12}_{s t a t} \pm {0.04}_{s y s t}) \times 10^{- 8}

$^{2}) = (1.19 \pm 0.12_{stat} \pm 0.04_{syst}) \times 10^{-8}$ . [...]
arXiv:0711.4313; CERN-PH-EP-2007-033; CERN-PH-EP-2007-033.- 2008 - 13 p. - Published in : Phys. Lett. B 659 (2008) 493-499 Fulltext: PDF; External link: Fulltext

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New high statistics measurement of $K_{e4}$ decay form factors and $\pi\pi$ scattering phase shifts / NA48/2 Collaboration
We report results from a new measurement of the

K_{e 4}

$K_{e4}$ decay

K^{\pm} \to π^{+} π^{-} e^{\pm} ν

$K^{\pm} \rightarrow \pi^{+}\pi^{-}e^{\pm}\nu$ by the NA48/2 collaboration at the CERN SPS, based on a partial sample of more than 670000

K_{e 4}

$K_{e4}$ decays in both charged modes collected in 2003. The form factors of the hadronic current (F, G, H) and

π π

$\pi\pi$ phase difference (

δ = δ_{s} - δ_{p}

$\delta=\delta_{s}-\delta_{p}$ ) have been measured in ten independent bins of the

π π

$\pi\pi$ mass spectrum to investigate the variation. [...]
CERN-PH-EP-2007-035.- Geneva : CERN, 2008 - 24 p. - Published in : Eur. Phys. J. C 54 (2008) 411-423 Springer Open Access article: PDF;

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Search for direct CP violating charge asymmetries in $K^\pm\to\pi^\pm\pi^+\pi^-$ and $K^\pm\to\pi^\pm\pi^0\pi^0$ decays / NA48/2 Collaboration
A measurement of the direct CP violating charge asymmetries of the Dalitz plot linear slopes

A_{g} = (g^{+} - g^{-}) / (g^{+} + g^{-})

$A_g=(g^+-g^-)/(g^++g^-)$ in

K^{\pm} \to π^{\pm} π^{+} π^{-}

$K^\pm\to\pi^\pm\pi^+\pi^-$ and

K^{\pm} \to π^{\pm} π^{0} π^{0}

$K^\pm\to\pi^\pm\pi^0\pi^0$ decays by the NA48/2 experiment at CERN SPS is presented. A new technique of asymmetry measurement involving simultaneous

K^{+}

$K^+$ and

K^{-}

$K^-$ beams and a large data sample collected allowed a result of an unprecedented precision. [...]
arXiv:0707.0697; CERN-PH-EP-2007-021; CERN-PH-EP-2007-021.- Geneva : CERN, 2007 - 28 p. - Published in : Eur. Phys. J. C 52 (2007) 875-891 Fulltext: phep-2007-021 - PDF; arXiv:0707.0697 - PDF; External link: Fulltext

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Measurement of the Dalitz plot slopes of the $K^{\pm} \to \pi^{\pm}\pi^{+}\pi^{-}$ decay / NA48/2 Collaboration
The distribution of the

K^{\pm} \to π^{\pm} π^{+} π^{-}

$K^{\pm} \to \pi^{\pm}\pi^{+}\pi^{-}$ decays in the Dalitz plot has been measured by the NA48/2 experiment at the CERN SPS with a sample of

4.71 \times 10^{8}

$4.71 \times 10^{8}$ fully reconstructed events. With the standard Particle Data Group parameterization the following values of the slope parameters were obtained:

g = (- 21.134 \pm 0.014)

$g=(-21.134 \pm 0.014)$ %,

h = (1.848 \pm 0.039)

$h=(1.848 \pm 0.039)$ %,

k = (- 0.463 \pm 0.012)

$k=(-0.463 \pm 0.012)$ %. [...]
hep-ex/0702045; CERN-PH-EP-2007-002; CERN-PH-EP-2007-002.- Geneva : CERN, 2007 - 14 p. - Published in : Phys. Lett. B 649 (2007) 349-358 Fulltext: arXiv:hep-ex_0702045 - PDF; phep-2007-002 - PDF;

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Search for direct CP-violation in $K^{\pm}\to \pi^{\pm}\pi^{0}\pi^{0}$ decays / NA48/2 Collaboration
A search for direct CP-violation in K+- --> pi+-pi0pi0 decays based on 47.14 million events has been performed by the NA48/2 experiment at the CERN SPS. The asymmetry in the Dalitz plot linear slopes A_g=(g^+ - g^-)/(g^+ + g^-) is measured to be A_g=(1.8 +- 2.6).10^{-4}. [...]
hep-ex/0606007.- 2006 - 14 p. Access to fulltext document: PDF; Fulltext: PDF; External link: hep-ex/0606007 PDF

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10.

Search for direct CP-violation in $K^{\pm} \to \pi^{\pm} \pi^{0} \pi^{0}$ decays / NA48/2 Collaboration
A search for direct CP-violation in

$K^{\pm}\rightarrow \pi^\pm \pi^0 \pi^0$ decay based on 47.14 million events has been performed by the NA48/2 experiment at the CERN SPS. The asymmetry in the Dalitz plot linear slopes

$A_g = ( g^+ -g^- ) / ( g^+ + g^- )$ is measured to be

$A_g = (1.8 \pm 2.6) \cdot10^{-4}$ . [...]
CERN-PH-EP-2006-006.- Geneva : CERN, 2006 - 14 p. - Published in : Phys. Lett. B 638 (2006) 22-29 Fulltext: PDF;

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