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researcher

J. Lefrancois

229 papers hereh-index 9038.3k citations1.3k works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author30

Across the 30 of 229 papers where every author was matched, so the position is known.

fields
  • hep-ex223
  • nucl-ex3
  • physics.ins-det3

identity via Semantic Scholar / OpenAlex

activity
19992025
most citedObservation of J/ψp resonances consistent with pentaquark states in Λb0​→J/ψK−p decays

1.3k citations · 17.3k across the 227 of their papers we have counts for

collaborators
Showing 2000Show all

3 papers · 1 filter

hep-ex2000★ 106 cited

Measurements of BR (b -> tau- nubar_tau X) and BR (b -> tau- nubar_tau D*+- X) and Upper Limits on BR (B- -> tau- nubar_tau) and BR (b -> s nu nubar)

ALEPH Collaboration

Inclusive branching ratios involving b to tau transitions are measured in approximately four million hadronic Z decays collected by the ALEPH detector at LEP. The fully-inclusive b…

hep-ex2000★ 46 cited

Study of the CP asymmetry of B0 -> J/psi K0S decays in ALEPH

ALEPH Collaboration

The decay B0 -> J/psi K0_S is reconstructed with J/psi -> e+ e- or mu+ mu- and K0_S -> pi+ pi-. From the full ALEPH dataset at LEP1 of about 4 million hadronic Z decays, 23 candida…

hep-ex2000★ 9 cited

Measurement of the Bbar0 and B- Meson Lifetimes

ALEPH Collaboration

The lifetimes of the Bbar0 and B- mesons are measured using a sample of about four million hadronic Z decays collected from 1991 to 1995 with the ALEPH detector at LEP. The data sa…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.