G. Cowan

activity

19972026

most citedAsymptotic formulae for likelihood-based tests of new physics

3.2k citations · 31.5k across the 404 of their papers we have counts for

collaborators

412 papers

physics.data-an2026

Discovery Sensitivity for a Counting Experiment with Background Uncertainty

Enzo Canonero, Glen Cowan

In Particle Physics, a search for a new signal process is often based on observing a Poisson-distributed number of events, whose mean contains contributions from background and, if…

hep-ex2024

Correlated Systematic Uncertainties and Errors-on-Errors in Measurement Combinations: Methodology and Application to the 7-8 TeV ATLAS-CMS Top Quark Mass Combination

Enzo Canonero, Glen Cowan

The Gamma Variance Model (GVM) is a statistical model that incorporates uncertainties in the assignment of systematic errors (informally called errors-on-errors). The model is of p…

hep-ex2023

Model-independent extraction of form factors and $∣ V_{c b} ∣$ in $B \to D ℓ^{-} ν_{ℓ}$ with hadronic tagging at BaBar

BaBar Collaboration, J. P. Lees, V. Poireau +208

Using the entire BaBar $Υ (4 S)$ data set, the first two-dimensional unbinned angular analysis of the semileptonic decay $B \to D ℓ^{-} ν_{ℓ}$ is perfor…

hep-ex2023★ 78 cited

The LHCb upgrade I

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1305

The LHCb upgrade represents a major change of the experiment. The detectors have been almost completely renewed to allow running at an instantaneous luminosity five times larger th…

physics.data-an2023★ 4 cited

Higher-order asymptotic corrections and their application to the Gamma Variance Model

Enzo Canonero, Alessandra Rosalba Brazzale, Glen Cowan

We present improved methods for calculating confidence intervals and $p$ -values in situations where standard asymptotic approaches fail due to small sample sizes. We apply these te…

hep-ex2023★ 11 cited

Search for $B$ Mesogenesis at BABAR

BABAR Collaboration, J. P. Lees, V. Poireau +239

A new mechanism has been proposed to simultaneously explain the presence of dark matter and the matter-antimatter asymmetry in the universe. This scenario predicts exotic $B$ meson…

hep-ex2022★ 2 cited

Search for Heavy Neutral Leptons Using Tau Lepton Decays at BABAR

BABAR Collaboration

This article presents a model independent search for an additional, mostly sterile, Heavy Neutral Lepton (HNL), that is capable of mixing with the Standard Model $τ$ neutrino with…

hep-ex2021

Search for an Axion-Like Particle in B Meson Decays

The BABAR Collaboration

Axion-like particles (ALPs) are predicted in many extensions of the Standard Model, and their masses can naturally be well below the electroweak scale. In the presence of couplings…

hep-ex2021

Study of the reactions $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} π^{0}$ and $π^{+} π^{-} π^{0} π^{0} π^{0} η$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

BaBar Collaboration

We study the processes $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} π^{0} γ$ and $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} η γ$ in which an energetic photon is radiated from the initial state. The data were collected with…

hep-ph2021★ 50 cited

Publishing statistical models: Getting the most out of particle physics experiments

Kyle Cranmer, Sabine Kraml, Harrison B. Prosper +30

The statistical models used to derive the results of experimental analyses are of incredible scientific value and are essential information for analysis preservation and reuse. In…

hep-ex2021★ 1 cited

Search for Lepton Flavor Violation in $Υ (3 S) \to e^{\pm} μ^{\mp}$

BABAR Collaboration

We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a $b$ ~quark and $b$ ~antiquark bound state. We look for the LFV decay $Υ(3S)\rightarrow…

hep-ph2021★ 6 cited

Effect of Systematic Uncertainty Estimation on the Muon $g - 2$ Anomaly

Glen Cowan

The statistical significance that characterizes a discrepancy between a measurement and theoretical prediction is usually calculated assuming that the statistical and systematic un…

hep-ex2021★ 4 cited

Search for Darkonium in $e^{+} e^{-}$ Collisions

The BABAR Collaboration

Collider searches for dark sectors, new particles interacting only feebly with ordinary matter, have largely focused on identifying signatures of new mediators, leaving much of dar…

hep-ex2021★ 40 cited

Light meson spectroscopy from Dalitz plot analyses of $η_{c}$ decays to $η^{'} K^{+} K^{-}$ , $η^{'} π^{+} π^{-}$ , and $η π^{+} π^{-}$ produced in two-photon interactions

J. P. Lees

We study the processes $γ γ \to η_{c} \to η^{'} K^{+} K^{-}$ , $η^{'} π^{+} π^{-}$ , and $η π^{+} π^{-}$ using a data sample of 519 $f b^{- 1}$ recorded with the BaBar detector operating at the SLAC PEP-II a…

hep-ex2021★ 5 cited

Study of the reactions $e^{+} e^{-} \to 2 (π^{+} π^{-}) π^{0} π^{0} π^{0}$ and $e^{+} e^{-} \to 2 (π^{+} π^{-}) π^{0} π^{0} η$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

The BABAR Collaboration

We study the processes $e^{+} e^{-} \to 2 (π^{+} π^{-}) π^{0} π^{0} π^{0} γ$ and $2 (π^{+} π^{-}) π^{0} π^{0} η γ$ in which an energetic photon is radiated from the initial state. The data were collected with the \ba…

hep-ex2020★ 29 cited

Search for $C P$ violation in $Ξ_{c}^{+} \to p K^{-} π^{+}$ decays using model-independent techniques

LHCb collaboration, R. Aaij, C. Abellán Beteta +950

A first search for $C P$ violation in the Cabibbo-suppressed $Ξ_{c}^{+} \to p K^{-} π^{+}$ decay is performed using both a binned and an unbinned model-independent technique in the Dal…

hep-ex2020★ 6 cited

Precision measurement of the $B (Υ (3 S) \to τ^{+} τ^{-}) / B (Υ (3 S) \to μ^{+} μ^{-})$ ratio

J. P. Lees, V. Poireau, V. Tisserand +238

We report on a precision measurement of the ratio $R_{τ μ}^{Υ (3 S)} = B (Υ (3 S) \to τ^{+} τ^{-}) / B (Υ (3 S) \to μ^{+} μ^{-})$ using data collected with the BaBar detector at the SL…

hep-ex2020★ 10 cited

Search for lepton-flavor violating decays $D^{0} \to X^{0} e^{\pm} μ^{\mp}$

BaBar Collaboration, J. P. Lees, V. Poireau +238

We present a search for seven lepton-flavor-violating neutral charm decays of the type $D^{0} \to X^{0} e^{\pm} μ^{\mp}$ , where $X^{0}$ represents a $π^{0}$ , $K_{S}^{0}$ …

astro-ph.IM2020★ 3 cited

Supernova Model Discrimination with Hyper-Kamiokande

Jost Migenda

Supernovae are among the most magnificent events in the observable universe. They produce many of the chemical elements necessary for life to exist and their remnants---neutron sta…

hep-ex2019★ 31 cited

Measurements of the Absolute Branching Fractions of $B^{\pm} \to K^{\pm} X_{c c ˉ}$

J. P. Lees, V. Poireau, V. Tisserand +232

A study of the two body decays $B^{\pm} \to X_{c c ˉ} K^{\pm}$ , where X $_{c c ˉ}$ refers to one charmonium state, is reported by BaBar collaboration using a data sample of 42…

hep-ex2019★ 31 cited

Determination of quantum numbers for several excited charmed mesons observed in $B^{-} \to D^{*+} π^{-} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +907

A four-body amplitude analysis of the $B^{-} \to D^{*+} π^{-} π^{-}$ decay is performed, where fractions and relative phases of the various resonances contributing to the decay are measu…

hep-ex2019★ 37 cited

Measurement of the $η_{c} (1 S)$ production cross-section in $pp$ collisions at $s = 13$ TeV

LHCb collaboration, R. Aaij, C. Abellán Beteta +913

Using a data sample corresponding to an integrated luminosity of $2.0 f b^{- 1}$ , collected by the LHCb experiment, the production of the $η_{c} (1 S)$ state in proton-proton collisions…

physics.data-an2019

Comparison of unfolding methods using RooFitUnfold

Lydia Brenner, Pim Verschuuren, Rahul Balasubramanian +4

In this paper we describe RooFitUnfold, an extension of the RooFit statistical software package to treat unfolding problems, and which includes most of the unfolding methods that c…

hep-ex2019★ 64 cited

Search for the doubly charmed baryon $Ξ_{cc}^{+}$

LHCb collaboration, R. Aaij, C. Abelán Beteta +905

A search for the doubly charmed baryon $Ξ_{cc}^{+}$ is performed through its decay to the $Λ_{c}^{+} K^{-} π^{+}$ final state, using proton-proton collision data collected with the LHCb de…

Discovery Sensitivity for a Counting Experiment with Background Uncertainty

Correlated Systematic Uncertainties and Errors-on-Errors in Measurement Combinations: Methodology and Application to the 7-8 TeV ATLAS-CMS Top Quark Mass Combination

Model-independent extraction of form factors and ∣Vcb​∣ in B→Dℓ−νℓ​ with hadronic tagging at BaBar

The LHCb upgrade I

Higher-order asymptotic corrections and their application to the Gamma Variance Model

Search for B Mesogenesis at BABAR

Search for Heavy Neutral Leptons Using Tau Lepton Decays at BABAR

Search for an Axion-Like Particle in B Meson Decays

Study of the reactions e+e−→π+π−π0π0π0π0 and π+π−π0π0π0η at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Publishing statistical models: Getting the most out of particle physics experiments

Search for Lepton Flavor Violation in Υ(3S)→e±μ∓

Effect of Systematic Uncertainty Estimation on the Muon g−2 Anomaly

Search for Darkonium in e+e− Collisions

Light meson spectroscopy from Dalitz plot analyses of ηc​ decays to η′K+K−, η′π+π−, and ηπ+π− produced in two-photon interactions

Study of the reactions e+e−→2(π+π−)π0π0π0 and e+e−→2(π+π−)π0π0η at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Search for CP violation in Ξc+​→pK−π+ decays using model-independent techniques

Precision measurement of the B(Υ(3S)→τ+τ−)/B(Υ(3S)→μ+μ−) ratio

Search for lepton-flavor violating decays D0→X0e±μ∓

Supernova Model Discrimination with Hyper-Kamiokande

Measurements of the Absolute Branching Fractions of B±→K±Xccˉ​

Determination of quantum numbers for several excited charmed mesons observed in B−→D∗+π−π− decays

Measurement of the ηc​(1S) production cross-section in pp collisions at s​=13 TeV

Comparison of unfolding methods using RooFitUnfold

Search for the doubly charmed baryon Ξcc+​

Model-independent extraction of form factors and $∣ V_{c b} ∣$ in $B \to D ℓ^{-} ν_{ℓ}$ with hadronic tagging at BaBar

Search for $B$ Mesogenesis at BABAR

Study of the reactions $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} π^{0}$ and $π^{+} π^{-} π^{0} π^{0} π^{0} η$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Search for Lepton Flavor Violation in $Υ (3 S) \to e^{\pm} μ^{\mp}$

Effect of Systematic Uncertainty Estimation on the Muon $g - 2$ Anomaly

Search for Darkonium in $e^{+} e^{-}$ Collisions

Light meson spectroscopy from Dalitz plot analyses of $η_{c}$ decays to $η^{'} K^{+} K^{-}$ , $η^{'} π^{+} π^{-}$ , and $η π^{+} π^{-}$ produced in two-photon interactions

Study of the reactions $e^{+} e^{-} \to 2 (π^{+} π^{-}) π^{0} π^{0} π^{0}$ and $e^{+} e^{-} \to 2 (π^{+} π^{-}) π^{0} π^{0} η$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Search for $C P$ violation in $Ξ_{c}^{+} \to p K^{-} π^{+}$ decays using model-independent techniques

Precision measurement of the $B (Υ (3 S) \to τ^{+} τ^{-}) / B (Υ (3 S) \to μ^{+} μ^{-})$ ratio

Search for lepton-flavor violating decays $D^{0} \to X^{0} e^{\pm} μ^{\mp}$

Measurements of the Absolute Branching Fractions of $B^{\pm} \to K^{\pm} X_{c c ˉ}$

Determination of quantum numbers for several excited charmed mesons observed in $B^{-} \to D^{*+} π^{-} π^{-}$ decays

Measurement of the $η_{c} (1 S)$ production cross-section in $pp$ collisions at $s = 13$ TeV

Search for the doubly charmed baryon $Ξ_{cc}^{+}$