Showing papers by "J. C. Anjos published in 2003"
01 Feb 2003
130 citations
University of California, Davis1, CINVESTAV2, University of Colorado Boulder3, Fermilab4, University of Illinois at Urbana–Champaign5, Indiana University6, Korea University7, Kyungpook National University8, University of Milan9, University of North Carolina at Chapel Hill10, University of Puerto Rico at Mayagüez11, University of South Carolina12, University of Tennessee13, Vanderbilt University14, University of Wisconsin-Madison15
TL;DR: In this article, a search for CPT violation in neutral charm meson oscillations was performed and the 95% confidence level limit is −0.0068 ξ ) y −(Im ξ) x N ( x, y, δ )(Δ a 0 + 0.6Δa Z ) −16 ǫ −16 Á −16 n −16 −16
80 citations
University of California, Davis1, CINVESTAV2, University of Colorado Boulder3, Fermilab4, University of Illinois at Urbana–Champaign5, Indiana University6, Korea University7, Kyungpook National University8, University of Milan9, University of North Carolina at Asheville10, University of Puerto Rico at Mayagüez11, University of South Carolina12, University of Tennessee13, Vanderbilt University14, University of Wisconsin-Madison15
TL;DR: In this paper, the branching ratios of the Cabibbo-suppressed decay modes D 0 → π − π + and D0 → K − K + were measured using the FOCUS (E831) experiment.
29 citations
University of California, Davis1, CINVESTAV2, University of Colorado Boulder3, Fermilab4, Universidad de Guanajuato5, University of Illinois at Urbana–Champaign6, Indiana University7, Korea University8, Kyungpook National University9, University of Milan10, University of North Carolina at Asheville11, University of Puerto Rico at Mayagüez12, University of South Carolina13, University of Tennessee14, Vanderbilt University15, University of Wisconsin-Madison16
TL;DR: In this article, a high statistics sample of photo-produced charm particles from the FOCUS experiment at Fermilab was used to search for eight rare and Standard-Model-forbidden decays: D+, Ds+→h±μ∓μ+ (with h=π,K).
18 citations
University of California, Davis1, CINVESTAV2, University of Colorado Boulder3, Fermilab4, Universidad de Guanajuato5, University of Illinois at Urbana–Champaign6, Indiana University7, Korea University8, Kyungpook National University9, University of Milan10, University of North Carolina at Chapel Hill11, University of Puerto Rico at Mayagüez12, University of South Carolina13, University of Tennessee14, Vanderbilt University15, University of Wisconsin-Madison16
TL;DR: In this article, a new measurement of the branching ratio for the Cabibbo-favored decay mode D0→K−K−π+π+ was presented.
15 citations
University of California, Davis1, CINVESTAV2, University of Colorado Boulder3, Fermilab4, Universidad de Guanajuato5, University of Illinois at Urbana–Champaign6, Indiana University7, Korea University8, Kyungpook National University9, University of Milan10, University of North Carolina at Asheville11, University of Puerto Rico at Mayagüez12, University of South Carolina13, University of Tennessee14, Vanderbilt University15, University of Wisconsin-Madison16
TL;DR: In this paper, the authors measured the branching ratio of the Cabibbo-favored decays Ξ c + → Σ + K − π +, and set 90% confidence level upper limits for the branching ratios with respect to Ξc + →Ξ− π−π + π+ π −π + to be 0.16±0.06, and 0.28± 0.12, respectively, and determined the 90% C.L.
12 citations
University of California, Davis1, CINVESTAV2, University of Colorado Boulder3, Fermilab4, University of Illinois at Urbana–Champaign5, Indiana University6, Korea University7, Kyungpook National University8, University of Milan9, University of North Carolina at Chapel Hill10, University of Puerto Rico at Mayagüez11, University of South Carolina12, University of Tennessee13, Vanderbilt University14, University of Wisconsin-Madison15
TL;DR: In this paper, the authors reported a precise measurement of the lifetime of the {Omega}{sub c}{sup 0} lifetime in the SELEX (E781) experiment using 600 GeV/c {Sigma}{sup -}, {pi-sup -} and p beams.
12 citations
TL;DR: In this article, the authors measured particle-antiparticle production asymmetries for Λ0 hyperons in 250 −GeV/c π±, K± and p-nucleon interactions.
10 citations
University of California, Davis1, CINVESTAV2, University of Colorado Boulder3, Fermilab4, Universidad de Guanajuato5, University of Illinois at Urbana–Champaign6, Indiana University7, Korea University8, Kyungpook National University9, University of Milan10, University of North Carolina at Chapel Hill11, University of Puerto Rico at Mayagüez12, University of South Carolina13, University of Tennessee14, Vanderbilt University15
TL;DR: In this article, a large sample of events containing fully and partially reconstructed pairs of charmed D mesons recorded by the Fermilab photoproduction experiment FOCUS (FNAL-E831) is presented.
9 citations
University of California, Davis1, CINVESTAV2, University of Colorado Boulder3, Fermilab4, University of Illinois at Urbana–Champaign5, Indiana University6, Korea University7, Kyungpook National University8, University of Milan9, University of North Carolina at Asheville10, University of Puerto Rico at Mayagüez11, University of South Carolina12, University of Tennessee13, Vanderbilt University14, University of Wisconsin-Madison15
TL;DR: In this paper, the decay of D+ and D+s mesons into charged five-body final states was studied, and the decay modes D+→K+K−π +π+π+δ+π−, Ds+→ K+K+π +δπ+γδ +π−π− and Ds−→ K−π+κπ+ π+π+,π+φπ− π− ρ−π −π−δ−
5 citations
01 Apr 2003
TL;DR: In this paper, a study of correlations between D and D mesons is presented, which is used to study perturbative QCD predictions and investigate non-perturbative effects.
Abstract: Over 7000 events containing a fully reconstructed D D pair have been extracted from data recorded by the FOCUS photoproduction experiment at Fermilab. Preliminary results from a study of correlations between D and D mesons are presented. Correlations are used to study perturbative QCD predictions and investigate non-perturbative effects. We also present a preliminary result on the production of Ψ(3770).