P. R. Burchat

activity

19972025

most citedMeasurements of Lifetimes and a Limit on the Lifetime Difference in the Neutral D-Meson System

66 citations · 267 across the 11 of their papers we have counts for

collaborators

11 papers

hep-ex2025

Study of $χ_{b 1, 2} (2 P) \to ω Υ (1 S)$ transitions in $Υ (3 S) \to γ χ_{b 1, 2} (2 P)$ decays at BaBar

The BABAR Collaboration

Results are presented on $χ_{b 1, 2} (2 P) \to ω Υ (1 S)$ transitions from $e^{+} e^{-} \to Υ (3 S) \to γ χ_{b 1, 2} (2 P)$ decays. The data were collected with the BaBar detector at the PEP-II asymm…

hep-ex2024★ 2 cited

A search for baryogenesis and dark matter in $B^{+} \to Λ_{c}^{+} + invisible$ decays

BABAR Collaboration

A mechanism of baryogenesis and dark matter production via $B$ -meson oscillations and decays has recently been proposed to explain the observed dark matter abundance and matter-ant…

hep-ex2023★ 15 cited

Measurement of additional radiation in the initial-state-radiation processes $e^{+} e^{-} \to μ^{+} μ^{-} γ$ and $e^{+} e^{-} \to π^{+} π^{-} γ$ at BABAR

BABAR Collaboration

A dedicated measurement of additional radiation in $e^{+} e^{-} \to μ^{+} μ^{-} γ$ and $e^{+} e^{-} \to π^{+} π^{-} γ$ initial-state-radiation events is presented using the full BABAR data sample. For the f…

hep-ex2018★ 11 cited

First evidence for $cos 2 β > 0$ and resolution of the CKM Unitarity Triangle ambiguity by a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} π^{+} π^{-}$ decays

The BaBar, Belle Collaborations, : +422

We present first evidence that the cosine of the CP-violating weak phase $2 β$ is positive, and hence exclude trigonometric multifold solutions of the CKM Unitarity Triangle using a…

hep-ex2010★ 58 cited

Measurement of the gamma gamma* --> eta_c transition form factor

The BABAR Collaboration, J. P. Lees

We study the reaction e+e- --> e+e- eta_c, eta_c --> K_S K+- pi-+ and obtain eta_c mass and width values 2982.2+-0.4+-1.6 MeV/c^2 and 31.7+-1.2+-0.8 MeV, respectively. We find Gamm…

hep-ex2006★ 32 cited

Measurement of time-dependent CP asymmetries in B0->D(*)+-pi-+ and B0->D+-rho-+ decays

The BABAR Collaboration, B. Aubert

We present updated results on time-dependent CP asymmetries in fully reconstructed B0->D(*)+-pi-+ and B0->D+-rho-+ decays in approximately 232 million Y(4S)->BBbar events collected…

hep-ex2001★ 1 cited

Study of the decay $D^{0} \to K^{-} K^{-} K^{+} π^{+}$

Fermilab E791 Collaboration

Using data from the E791 fixed-target hadroproduction experiment at Fermilab we have studied the Cabibbo-favored but phase-space suppressed decay, $D^{0} \to K^{-} K^{-} K^{+} π^{+}$ . We fin…

hep-ex2000★ 19 cited

Asymmetries in the production of lambda zero, cascade minus, and omega minus hyperons in 500 GeV/c pi minus-Nucleon Interactions

E. M. Aitala

Using data from Fermilab fixed-target experiment E791, we have measured particle-antiparticle production asymmetries for lambda zero, cascade minus, and omega minus hyperons in pi…

hep-ex2000★ 26 cited

Asymmetries in the Production of $Λ_{c}^{+}$ and $Λ_{c}^{-}$ Baryons in 500 GeV/c $π^{-}$ Nucleon Interactions

E791 Collaboration

We present a measurement of asymmetries in the production of $Λ_{c}^{+}$ and $Λ_{c}^{-}$ baryons in 500 GeV/c $π^{-}$ --nucleon interactions from the E791 experiment at Fermilab. The asymmetr…

hep-ex1999★ 66 cited

Measurements of Lifetimes and a Limit on the Lifetime Difference in the Neutral D-Meson System

The Fermilab E791 Collaboration

Using the large hadroproduced charm sample collected in experiment E791 at Fermilab, we report the first directly measured constraint on the decay-width difference Delta Gamma for…

hep-ex1997★ 37 cited

Asymmetries Between the Production of Ds- and Ds+ Mesons from 500 GeV/c pi- Nucleon Interactions as Functions of x_F and square of p_t

E791 Collaboration

This paper presents measurements of the production of Ds- mesons relative to Ds+ mesons as functions of x_F and square of p_t for a sample of 2445 Ds decays to phi pi. The Ds meson…

Study of χb1,2​(2P)→ωΥ(1S) transitions in Υ(3S)→γχb1,2​(2P) decays at BaBar

A search for baryogenesis and dark matter in B+→Λc+​+invisible decays

Measurement of additional radiation in the initial-state-radiation processes e+e−→μ+μ−γ and e+e−→π+π−γ at BABAR

First evidence for cos2β>0 and resolution of the CKM Unitarity Triangle ambiguity by a time-dependent Dalitz plot analysis of B0→D(∗)h0 with D→KS0​π+π− decays