P. S. Cooper

activity

20012023

most citedConfirmation of the Double Charm Baryon Xi_cc+ via its Decay to p D+ K-

316 citations · 647 across the 10 of their papers we have counts for

collaborators

10 papers

hep-ex2023★ 14 cited

Measurement of the $K^{+} \to π^{+} γ γ$ decay

The NA62 Collaboration

A sample of 3984 candidates of the $K^{+} \to π^{+} γ γ$ decay, with an estimated background of $291 \pm 14$ events, was collected by the NA62 experiment at CERN during 2017-2018. In order t…

hep-ex2021★ 69 cited

Search for $K^{+}$ decays to a muon and invisible particles

NA62 collaboration

The NA62 experiment at CERN reports searches for $K^{+} \to μ^{+} N$ and $K^{+} \to μ^{+} ν X$ decays, where $N$ and $X$ are massive invisible particles, using the 2016-2018 data set. The $N$ par…

hep-ex2020★ 58 cited

Search for $π^{0}$ decays to invisible particles

NA62 Collaboration

The NA62 experiment at the CERN SPS reports a study of a sample of $4 \times 1 0^{9}$ tagged $π^{0}$ mesons from $K^{+} \to π^{+} π^{0} (γ)$ , searching for the decay of the $π^{0}$ to invisibl…

hep-ex2018★ 86 cited

Search for heavy neutral lepton production in $K^{+}$ decays

NA62 collaboration

A search for heavy neutral lepton production in $K^{+}$ decays using a data sample collected with a minimum bias trigger by the NA62 experiment at CERN in 2015 is reported. Upper lim…

hep-ex2008★ 4 cited

First Observation of the Cabibbo-suppressed Decays Xi_c+ -> Sigma+ pi- pi+ and Xi_c+ -> Sigma- pi+ pi+ and Measurement of their Branching Ratios

SELEX Collaboration, E. Vazquez-Jauregui, J. Engelfried

We report the first observation of two Cabibbo-suppressed decay modes, Xi_c+ -> Sigma+ pi- pi+ and Xi_c+ -> Sigma- pi+ pi+. We observe 59+/-14 over a background of 87, and 22+/-8 o…

hep-ex2005★ 33 cited

Upper Limit on the Branching Ratio for the Decay $π^{0} \to ν ν ˉ$

E949 Collaboration, A. V. Artamonov

A sample of kinematically identified $K^{+} \to π^{+} π^{0}$ decays obtained with the E949 detector was used to search for the helicity-suppressed decay $π^{0} \to ν ν ˉ$ resulting in an…

Measurement of the K+→π+γγ decay

Search for K+ decays to a muon and invisible particles

Search for π0 decays to invisible particles

Search for heavy neutral lepton production in K+ decays