Search Results - "de Miranda, J M"
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Direct measurement of the pion valence-quark momentum distribution, the pion light-cone wave function squared
Published in Physical review letters (21-05-2001)“…We present the first direct measurements of the pion valence-quark momentum distribution which is related to the square of the pion light-cone wave function…”
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Application of genetic programming to high energy physics event selection
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-10-2005)“…We review genetic programming principles, their application to FOCUS data samples, and use the method to study the doubly Cabibbo suppressed decay D + → K + π…”
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3
The K−π+ S-wave from the D+→K−π+π+ decay
Published in Physics letters. B (19-10-2009)“…Using data from FOCUS (E831) experiment at Fermilab, we present a model independent partial-wave analysis of the K−π+ S-wave amplitude from the decay…”
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4
Experimental evidence for a light and broad scalar resonance in D(+) --> pi(-)pi(+)pi(+) decay
Published in Physical review letters (29-01-2001)“…From a sample of 1172 +/- 61 D(+)-->pi(-)pi(+)pi(+) decays, we find gamma(D(+)-->pi(-)pi(+)pi(+))/gamma(D(+)-->K-pi(+)pi(+)) = 0.0311 +/-…”
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Search for T violation in charm meson decays
Published in Physics letters. B (01-09-2005)“…Using data from the FOCUS (E831) experiment, we have searched for T violation in charm meson decays using the four-body decay channels D0→K−K+π−π+,…”
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6
Observation of color-transparency in diffractive dissociation of pions
Published in Physical review letters (21-05-2001)“…We have studied the diffractive dissociation into dijets of 500 GeV/c pions scattering coherently from carbon and platinum targets. Extrapolating to…”
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Observation of a Narrow Pentaquark State, Pc(4312)+, and of the Two-Peak Structure of the Pc(4450)
Published in Physical review letters (07-06-2019)“…A narrow pentaquark state, Pc(4312)+, decaying to J/ψp, is discovered with a statistical significance of 7.3σ in a data sample of Λb0→J/ψpK− decays, which is…”
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Automorphisms of Finite Groups
Published in Communications in algebra (31-12-2004)“…We study the classification of those finite groups G having a non-inner class preserving automorphism. Criteria for these automorphisms to be inner are…”
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Evidence of a J/ψΛ structure and observation of excited Ξ- states in the Ξb-→J/ψΛK- decay
Published in Science bulletin (Beijing) (15-07-2021)“…[Display omitted] First evidence of a structure in the J/ψΛ invariant mass distribution is obtained from an amplitude analysis of Ξb-→J/ψΛK- decays. The…”
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Observation of a J / ψ Λ Resonance Consistent with a Strange Pentaquark Candidate in B − → J / ψ Λ p ¯ Decays
Published in Physical review letters (21-07-2023)“…An amplitude analysis of B- → J/ψ Λ p ¯ decays is performed using 4400 signal candidates selected on a data sample of pp collisions recorded at center-of-mass…”
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First Observation of the Doubly Charmed Baryon Decay Ξcc + + → Ξc+ π
Published in Physical review letters (17-10-2018)“…The doubly charmed baryon decay Ξ + + c c → Ξ + c π + is observed for the first time, with a statistical significance of 5.9 σ , confirming a recent…”
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Measurement of the Lifetime of the Doubly Charmed Baryon Ξcc++
Published in Physical review letters (31-07-2018)“…The first measurement of the lifetime of the doubly charmed baryon Ξcc++ is presented, with the signal reconstructed in the final state Λc+K−π+π+. The data…”
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13
Search for a strongly decaying neutral charmed pentaquark
Published in Physics letters. B (01-09-2005)“…We present a search for a charmed pentaquark decaying strongly to D(∗)−p. Finding no evidence for such a state, we set limits on the cross-section times…”
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Search for the Lepton-Flavor-Violating Decays Bs0→τ±μ∓ and B0→τ±μ
Published in Physical review letters (22-11-2019)“…Results are reported from a search for the rare decays Bs0→τ±μ∓ and B0→τ±μ∓, where the τ lepton is reconstructed in the channel τ−→π−π+π−ντ. These processes…”
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Observation of New Resonances in the Λb0π+π− System
Published in Physical review letters (11-10-2019)“…We report the observation of a new structure in the Λb0π+π− spectrum using the full LHCb data set of pp collisions, corresponding to an integrated luminosity…”
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Observation of an Excited Bc+ State
Published in Physical review letters (14-06-2019)“…Using pp collision data corresponding to an integrated luminosity of 8.5 fb−1 recorded by the LHCb experiment at center-of-mass energies of s=7, 8, and 13…”
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Cherenkov particle identification in FOCUS
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-05-2002)“…We describe the algorithm used to identify charged tracks in the fixed-target charm-photoproduction experiment FOCUS. We begin by describing the new algorithm…”
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Observation of Multiplicity Dependent Prompt χc1 (3872) and ψ(2S) Production in pp Collisions
Published in Physical review letters (05-03-2021)“…The production of χc1(3872) and ψ(2S) hadrons is studied as a function of charged particle multiplicity in p p collisions at a center-of-mass energy of 8 TeV,…”
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Measurements of Lifetimes and a Limit on the Lifetime Difference in the Neutral D -Meson System
Published in Physical review letters (05-07-1999)Get full text
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Determination of the quark coupling strength |Vub| using baryonic decays
Published in Nature physics (27-07-2015)“…In the Standard Model of particle physics, the strength of the couplings of the b quark to the u and c quarks, | V ub | and | V cb |, are governed by the…”
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