M. Behler

activity

20022023

most cited

Λ

and

Λ ˉ

Production in Central Pb-Pb Collisions at 40, 80, and 158 A

\cdot

GeV

101 citations · 817 across the 23 of their papers we have counts for

collaborators

23 papers

hep-ex2023

First observation and study of the $K^{\pm} \to π^{0} π^{0} μ^{\pm} ν$ decay

2 Collaboration, J. R. Batley, G. Kalmus +121

The NA48/2 experiment at CERN reports the first observation of the $K^{\pm} \to π^{0} π^{0} μ^{\pm} ν$ decay based on a sample of 2437 candidates with 15% background contam…

hep-ex2016★ 41 cited

Searches for Lepton Number Violation and Resonances in $K^{\pm} \to π μμ$ Decays

2 collaboration

The NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003--2004. A new upper limit on the rate of the le…

hep-ex2016

ChPT tests at the NA48 and NA62 experiments at CERN

NA48/2, NA62 Collaborations, : +159

The NA48/2 Collaboration at CERN has accumulated unprecedented statistics of rare kaon decays in the Ke4 modes: Ke4(+-) ( $K^{\pm} \to π^{+} π^{-} e^{\pm} ν$ ) and Ke4(00) ($K^\pm \to π^0 π^…

hep-ex2014

Recent NA48/2 and NA62 results

F. Ambrosino, A. Antonelli, G. Anzivino +156

The NA48/2 Collaboration at CERN has accumulated and analysed unprecedented statistics of rare kaon decays in the $K_{e 4}$ modes: $K_{e 4} (+ -)$ ( $K^{\pm} \to π^{+} π^{-} e^{\pm} ν$ ) and $K_…

hep-ex2013★ 6 cited

Measurement of the branching ratio of the decay $Ξ^{0} \to Σ^{+} μ^{-} ν ˉ_{μ}$

J. R. Batley, G. E. Kalmus, C. Lazzeroni +110

From the 2002 data taking with a neutral kaon beam extracted from the CERN-SPS, the NA48/1 experiment observed 97 $Ξ^{0} \to Σ^{+} μ^{-} ν ˉ_{μ}$ candidates with a backgroun…

hep-ex2012★ 19 cited

New measurement of the charged kaon semileptonic (Ke4) decay Branching Ratio and Hadronic Form Factors

2 Collaboration

A sample of more than one million Ke4 decay candidates with less than one percent background contamination has been collected by the NA48/2 experiment at the CERN SPS in 2003-2004,…

hep-ex2010★ 9 cited

New Precise Measurements of the $\xilamgam$ and $\xisiggam$ Decay Asymmetries

J. R. Batley

The decay asymmetries of the weak radiative Hyperon decays Xi0 \to Lambda gamma and Xi0 \to Sigma0 gamma have been measured with high precision using data of the NA48/1 experiment…

hep-ex2010★ 12 cited

Empirical parameterization of the K+- -> pi+- pi0 pi0 decay Dalitz plot

J. R. Batley, A. J. Culling, G. Kalmus +118

As first observed by the NA48/2 experiment at the CERN SPS, the $\p0p0$ invariant mass (M00) distribution from $\kcnn$ decay shows a cusp-like anomaly at M00=2m+, where m+ is the c…

hep-ex2010★ 22 cited

Measurement of the direct emission and interference terms and search for CP violation in the decay K\pm -> π\pmπ^0 g

2 Collaboration

We report on the measurement of the direct emission (DE) and interference (INT) terms of the K\pm -> π\pmπ^0 g decay by the NA48/2 experiment at the CERN SPS. From the data collect…

hep-ex2009★ 74 cited

Determination of the S-wave pi pi scattering lengths from a study of K+- -> pi+- pi0 pi0 decays

2 Collaboration

We report the results from a study of the full sample of ~ 6.031 10^7 K+- -> pi+- pi0 pi0 decays recorded by the NA48/2 experiment at the CERN SPS. As first observed in this experi…

hep-ex2009★ 76 cited

Precise measurement of the K+- --> pi+-e+e- decay

2 collaboration

A sample of 7253 $K^{\pm} \to π^{\pm} e^{+} e^{-} (γ)$ decay candidates with 1.0% background contamination has been collected by the NA48/2 experiment at the CERN SPS, allowing a precise measu…

hep-ex2007★ 16 cited

First Observation and Measurement of the Decay K+- -> pi+- e+ e- gamma

2 Collaboration, J. R. Batley

Using the full data set of the NA48/2 experiment, the decay K+- -> pi+- e+ e- gamma is observed for the first time, selecting 120 candidates with 7.3 +- 1.7 estimated background ev…

hep-ex2007★ 98 cited

Search for direct CP violating charge asymmetries in $K^{\pm} \to π^{\pm} π^{+} π^{-}$ and $K^{\pm} \to π^{\pm} π^{0} π^{0}$ decays

J. R. Batley

A measurement of the direct CP violating charge asymmetries of the Dalitz plot linear slopes $A_{g} = (g^{+} - g^{-}) / (g^{+} + g^{-})$ in $K^{\pm} \to π^{\pm} π^{+} π^{-}$ and $K^{\pm} \to π^{\pm} π^{0} π^{0}$ decays by…

hep-ex2007★ 9 cited

First observation and branching fraction and decay parameter measurements of the weak radiative decay Xi0 --> Lambda e+e-

NA48 Collaboration

The weak radiative decay Xi0 --> Lambda e+e- has been detected for the first time. We find 412 candidates in the signal region, with an estimated background of 15 +/- 5 events. We…

hep-ex2007

Measurement of the Dalitz plot slope parameters of the $K^{\pm} \to π^{\pm} π^{+} π^{-}$ decay

2 Collaboration, J. R. Batley et al.

The distribution of the $K^{\pm} \to π^{\pm} π^{+} π^{-}$ decays in the Dalitz plot has been measured by the NA48/2 experiment at the CERN SPS with a sample of $4.71 \times 1 0^{8}$ fully reconstr…

hep-ex2006★ 15 cited

Search for direct CP violation in the decays K\pm \to 3π\pm

2 Collaboration, J. R. Batley

We report a measurement of the direct CP violation asymmetry parameter $A_{g}$ in charged kaon decays $K^{\pm} \to π^{\pm} π^{+} π^{-}$ by the NA48/2 experiment at the CERN SPS. The experiment h…

hep-ex2003★ 98 cited

Transverse Momentum Fluctuations in Nuclear Collisions at 158 AGeV

The NA49 Collaboration

Results are presented on event-by-event fluctuations in transverse momentum of charged particles, produced at forward rapidities in p+p, C+C, Si+Si and Pb+Pb collisions at 158 AGeV…

nucl-ex2003★ 101 cited

$Λ$ and $Λ ˉ$ Production in Central Pb-Pb Collisions at 40, 80, and 158 A $\cdot$ GeV

The NA49 Collaboration, T. Anticic

Production of Lambda and Antilambda hyperons was measured in central Pb-Pb collisions at 40, 80, and 158 A $\cdot$ GeV beam energy on a fixed target. Transverse mass spectra and rapi…

nucl-ex2003★ 46 cited

Strangeness from 20 AGeV to 158 AGeV

Volker Friese

New results from the energy scan programme of NA49, in particular kaon production at 30 AGeV and phi production at 40 and 80 AGeV are presented. The K+/pi+ ratio shows a pronounced…

nucl-ex2002★ 22 cited

Bose-Einstein Correlations of Charged Kaons in Central Pb+Pb Collisions at $E_{b e am} = 158 A G e V$

S. V. Afanasiev

Bose-Einstein correlations of charged kaons were measured near mid-rapidity in central Pb+Pb collisions at 158 A $\cdot$ GeV by the NA49 experiment at the CERN SPS. Source radii were…

nucl-ex2002★ 33 cited

Results on correlations and fluctuations from NA49

C. Blume

The large acceptance and high momentum resolution as well as the significant particle identification capabilities of the NA49 experiment at the CERN SPS allow for a broad study of…

nucl-ex2002★ 40 cited

Energy Dependence of $Λ$ and $Λ ˉ$ Production at CERN-SPS Energies

A. Mischke

Rapidity distributions for $Λ$ and $Λ ˉ$ hyperons in central Pb-Pb collisions at 40, 80 and 158 A $\cdot$ GeV and for $K_{s}^{0}$ mesons at 158 A $\cdot$ GeV are presented. The…

nucl-ex2002★ 80 cited

Recent results on spectra and yields from NA49

M. van Leeuwen

The energy dependence of hadron production in central Pb+Pb collisions is presented and discussed. In particular, midrapidity $m_{T}$ -spectra for $π^{-}$ , $K^{-}$ , $K^{+}$ , $p$ , $p ˉ$ ,…

First observation and study of the K±→π0π0μ±ν decay

Searches for Lepton Number Violation and Resonances in K±→πμμ Decays

ChPT tests at the NA48 and NA62 experiments at CERN

Recent NA48/2 and NA62 results

Measurement of the branching ratio of the decay Ξ0→Σ+μ−νˉμ​

New measurement of the charged kaon semileptonic (Ke4) decay Branching Ratio and Hadronic Form Factors

New Precise Measurements of the $\xilamgam$ and $\xisiggam$ Decay Asymmetries

Empirical parameterization of the K+- -> pi+- pi0 pi0 decay Dalitz plot

Measurement of the direct emission and interference terms and search for CP violation in the decay K\pm -> π\pmπ^0 g

Determination of the S-wave pi pi scattering lengths from a study of K+- -> pi+- pi0 pi0 decays

Precise measurement of the K+- --> pi+-e+e- decay

First Observation and Measurement of the Decay K+- -> pi+- e+ e- gamma

Search for direct CP violating charge asymmetries in K±→π±π+π− and K±→π±π0π0 decays

First observation and branching fraction and decay parameter measurements of the weak radiative decay Xi0 --> Lambda e+e-

Measurement of the Dalitz plot slope parameters of the K±→π±π+π− decay

Search for direct CP violation in the decays K\pm \to 3π\pm

Transverse Momentum Fluctuations in Nuclear Collisions at 158 AGeV

Λ and Λˉ Production in Central Pb-Pb Collisions at 40, 80, and 158 A⋅GeV

Strangeness from 20 AGeV to 158 AGeV

Bose-Einstein Correlations of Charged Kaons in Central Pb+Pb Collisions at Ebeam​=158AGeV

Results on correlations and fluctuations from NA49

Energy Dependence of Λ and Λˉ Production at CERN-SPS Energies

Recent results on spectra and yields from NA49

First observation and study of the $K^{\pm} \to π^{0} π^{0} μ^{\pm} ν$ decay

Searches for Lepton Number Violation and Resonances in $K^{\pm} \to π μμ$ Decays

Measurement of the branching ratio of the decay $Ξ^{0} \to Σ^{+} μ^{-} ν ˉ_{μ}$

Search for direct CP violating charge asymmetries in $K^{\pm} \to π^{\pm} π^{+} π^{-}$ and $K^{\pm} \to π^{\pm} π^{0} π^{0}$ decays

Measurement of the Dalitz plot slope parameters of the $K^{\pm} \to π^{\pm} π^{+} π^{-}$ decay

$Λ$ and $Λ ˉ$ Production in Central Pb-Pb Collisions at 40, 80, and 158 A $\cdot$ GeV

Bose-Einstein Correlations of Charged Kaons in Central Pb+Pb Collisions at $E_{b e am} = 158 A G e V$

Energy Dependence of $Λ$ and $Λ ˉ$ Production at CERN-SPS Energies