activity
20022025
most citedA precision measurement of direct CP violation in the decay of neutral kaons into two pions

238 citations · 690 across the 29 of their papers we have counts for

collaborators

29 papers

hep-ex2025

Searches for hidden sectors using decays

NA62 Collaboration

Results from the study of the rare decays , and at the NA62 experiment at CERN are interpreted in terms…

hep-ex2025★ 5 cited

Search for hadronic decays of feebly-interacting particles at NA62

NA62 Collaboration

The NA62 experiment at CERN has the capability to collect data in a beam-dump mode, where 400 GeV protons are dumped on an absorber. In this configuration, New Physics particles, i…

hep-ex2024★ 13 cited

Observation of the decay and measurement of its branching ratio

NA62 Collaboration

A measurement of the decay by the NA62 experiment at the CERN SPS is presented, using data collected in 2021 and 2022. This dataset was recorded, afte…

hep-ex2024★ 3 cited

First detection of a tagged neutrino in the NA62 experiment

NA62 Collaboration

The NA62 experiment at the CERN SPS reports the first detection of a tagged neutrino candidate based on the data collected in 2022. The candidate consists of a $K^+ \rightarrow μ^+…

hep-ex2023

Development of a new CEDAR for kaon identification at the NA62 experiment at CERN

The NA62 Collaboration

The NA62 experiment at CERN utilises a differential Cherenkov counter with achromatic ring focus (CEDAR) for tagging kaons within an unseparated monochromatic beam of charged hadro…

hep-ex2023

First observation and study of the decay

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

The NA48/2 experiment at CERN reports the first observation of the decay based on a sample of 2437 candidates with 15% background contam…

hep-ex2023★ 5 cited

A study of the decay

The NA62 Collaboration

A sample of candidates with less than 1% background was collected by the NA62 experiment at the CERN SPS in 2017-2018. Branching fraction mea…

hep-ex2022★ 3 cited

Performance of the NA62 trigger system

The NA62 Collaboration

The NA62 experiment at CERN targets the measurement of the ultra-rare decay, and carries out a broad physics programme that includes probes for symmetry vio…

hep-ex2022★ 19 cited

Searches for lepton number violating decays

NA62 collaboration

Searches for lepton number violating and decays have been performed using the complete dataset collected by the NA62 experiment at CERN in 20…

hep-ex2021★ 28 cited

Search for lepton number and flavour violation in and decays

NA62 Collaboration

Searches for the lepton number violating decay and the lepton flavour violating and $π^{0} \rightarrow μ…

hep-ex2019★ 46 cited

Searches for lepton number violating decays

NA62 collaboration

The NA62 experiment at CERN reports a search for the lepton number violating decays and using a data sample collected in 2017. No signals are ob…

hep-ex2019★ 12 cited

KLEVER: An experiment to measure BR() at the CERN SPS

F. Ambrosino, R. Ammendola, A. Antonelli +75

Precise measurements of the branching ratios for the flavor-changing neutral current decays can provide unique constraints on CKM unitarity and, potentially, evidence…

hep-ex2016★ 41 cited

Searches for Lepton Number Violation and Resonances in 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

Search for at NA62

Matthew Moulson

The decay is highly suppressed in the Standard Model (SM), while its rate can be predicted with minimal theoretical uncertainty. The branching ratio (BR) for this…

physics.ins-det2016

Recent results and prospects for NA62 experiment

Silvia Martellotti

The decay is theoretically one of the cleanest meson decays and so a good place to look for indirect effects of new physics complementary to LHC search…

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(+-) () and Ke4(00) ($K^\pm \to π^0 π^…

physics.ins-det2014★ 12 cited

The NA62 experiment at CERN: status and perspectives

Riccardo Fantechi

The NA62 experiment at CERN will measure the branching ratio of the K+ -> pi+ nu nubar decay with a precision of 10%, collecting about 100 events in two years of run. This paper wi…

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★ 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 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★ 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…