Recherche

Afficher tous les résultats pour

Accueil

Personne

Aurelio Bay

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (871)

Search for lepton-flavor-violating τ decays into three leptons with 719 million produced τ+ τ- pairs

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Chao Wang, Ji Hyun Kim, Jing Li

We present a search for lepton-flavor-violating τ decays into three leptons (electrons or muons) using 782 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. No evidence for these decays is observed and we set 90% ...

2010

Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Jing Li

We search for lepton flavor and lepton number violating τ decays into a lepton (ℓ = electron or muon) and two charged mesons (h, h′ = π± or K±), τ- → ℓ- h+ h′ - and τ- → ℓ+ h- h′ -, using 671 fb-1 of data collected with the Belle detector at the KEKB asymm ...

2010

Evidence for a New Resonance and Search for the Y(4140) in the γγ→ϕJ/ψ Process

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Xiao Wang, Jing Li

The process gamma gamma -> phi J/psi is measured using a data sample of 825 fb(-1) collected with the Belle detector. A narrow peak of 8:8(-3.2)(+4.2) events, with a significance of 3.2 standard deviations including systematic uncertainty, is observed. The ...

2010

Evidence for B→Kη′γ decays at Belle

Jean Wicht, Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Mingkui Wang, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Jing Li

We present the results of a search for the radiative decay B -> K eta 'gamma and find evidence for B+ -> K+eta 'gamma decays at the 3.3 standard deviation level with a partial branching fraction of (3.6 +/- 1.2 +/- 0.4) x 10(-6), where the first error is s ...

American Physical Society2010

Search for a Low Mass Particle Decaying into μ^{+}μ^{-} in B^{0}→K^{*0}X and B^{0}→ρ^{0}X at Belle

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Ji Hyun Kim, Xiao Wang, Jing Li

We search for dimuon decays of a low mass particle in the decays B-0 -> K*X-0 and B-0 -> rho X-0 using a data sample of 657 x 10(6)B (B) over bar events collected with the Belle detector at the KEKB asymmetric- energy e(+)e(-) collider. We find no evidence ...

2010

Study of the B→X(3872)(→D*0D̄0)K decay

Jean Wicht, Aurelio Bay, Remi Léandre Albert Louvot, Nicolas Zwahlen, Olivier Schneider, Tagir Aushev, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Jing Li

We present a study of B→X(3872)K with X(3872) decaying to D0D̄0 using a sample of 657×106 BB̄ pairs recorded at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. Both D0→D0γ and D*0→D0π0 decay modes are used. We fin ...

American Physical Society2010

Prompt K-S(0) production in pp collisions at root s=0.9 TeV

Christophe Salzmann, Christoph Frei, Peter Clarke, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Louis Nicolas, Cédric Potterat, Neal Gauvin, Géraldine Conti, Christophe Bauer, Joël Bressieux, Johan Luisier, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Mathias Oleg Knecht, Olivier Schneider, Pierre Jaton, Hans Dijkstra, Julien Rouvinet, Frédéric Guillaume Dupertuis, Frédéric Teubert, Gerhard Raven, Anne Keune, Frédéric Blanc, Matthew Needham, Raluca Anca Muresan, Barinjaka Rakotomiaramanana, Greig Alan Cowan, Andreas Alexander Maier, Vladislav Balagura, Albert Puig Navarro, Mark Tobin, Victor Coco, Plamen Hristov Hopchev, Jian Wang, Yi Zhang, Lei Zhang, Michel De Cian, Yiming Li, Giovanni Carboni

Measurement of eta eta production in two-photon collisions

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Xiao Wang

We report the first measurement of the differential cross section for the process gamma gamma -> eta eta in the kinematic range above the eta eta threshold, 1.096 GeV < W < 3.8 GeV over nearly the entire solid angle range, vertical bar cos theta*vertical b ...

American Physical Society2010

Measurement of the decay Bs0→Ds-π+ and evidence for Bs0→Ds K± in e+e- annihilation at s 10.87GeV

Jean Wicht, Aurelio Bay, Remi Léandre Albert Louvot, Nicolas Zwahlen, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Chao Wang, Vladislav Balagura, Xiao Wang, Jing Li

We have studied Bs0→Ds-π+ and Bs0→Ds K± decays using 23.6fb-1 of data collected at the Υ(5S) resonance with the Belle detector at the KEKB e+e- collider. This highly pure Bs0→Ds-π+ sample is used to measure the branching fraction, B(Bs0→Ds-π+)=[3.67-0.33+0 ...

2009

Measurement of the branching fraction for the decay Υ(4S) →Υ(1S)π+π-

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Xiao Wang, Jing Li

We study transitions between Υ states with the emission of charged pions using 604.6fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The measured product branching fraction is B(Υ(4S)→Υ(1S)π+π-)×B(Υ(1S)→μ+μ-)=(2. ...

American Physical Society2009

Measurement of cross sections of exclusive e+ e- → V P processes at sqrt(s) = 10.58 GeV

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Chao Wang, Vladislav Balagura, Ji Hyun Kim

The cross sections for the reactions e+ e- → φ{symbol} η, φ{symbol} η′, ρη, ρ η′ have been measured using a data sample of 516 fb- 1 collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. The corresponding values of the cross secti ...

2009

Search for the X(1812) in B±→K±ωϕ

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Chao Wang, Xiao Wang, Jing Li

We report on a search for the X(1812) state in the decay B-+/--> K-+/-omega phi with a data sample of 657x10(6) BB pairs collected with the Belle detector at the KEKB e(+)e(-) collider. No significant signal is observed. An upper limit ...

American Physical Society2009

Measurement of the e+e-→D0D*-π+ cross section using initial-state radiation

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Chao Wang, Vladislav Balagura, Thomas Muller, Ji Hyun Kim, Xiao Wang, Jing Li

We report measurements of the exclusive cross section for e(+)e(-)->(DD*-)-D-0 pi(+) as a function of center-of-mass energy from the (DD*-)-D-0 pi(+) threshold to 5.2 GeV with initial-state radiation. No evidence is found for Y(4260)->(DD*-)-D-0 pi(+) deca ...

American Physical Society2009

Measurement of inclusive radiative B-meson decays with a photon energy threshold of 1.7 GeV

Jean Wicht, Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Vladislav Balagura, Jing Li

Using 605fb-1 of data collected at the Υ(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B→Xsγ. For the lower photon energy thresholds of 1.7, 1.8, 1.9, and 2.0 GeV, as defined in the rest frame of the B meson, we m ...

2009

Observation of B0→ΛΛ¯K0 and B0→ΛΛ¯K*0 at Belle

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Vladislav Balagura, Xiao Wang

We study the charmless decays B -> Lambda(Lambda) over barh , where h stands for pi(+), K+, K-0, K*(+), or K*(0), using a 605 fb(-1) data sample collected at the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. W ...

American Physical Society2009

Search for lepton-flavor-violating τ decay into a lepton and an f0 (980) meson

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Chao Wang, Xiao Wang, Jing Li

We search for lepton-flavor-violating τ decays into a lepton (electron or muon) and an f0 (980) meson using 671 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. No events are observed and we set the following 90% ...

2009

Dalitz analysis of B→Kπ+ψ′ decays and the Z(4430)

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Xiao Wang

From a Dalitz plot analysis of B→Kπ+ψ′ decays, we find a signal for Z(4430)+→π+ψ′ with a mass M=(4443-12-13+15+19)MeV/ c2, width Γ=(107-43-56+86+74)MeV, product branching fraction B(B̄0→K-Z(4430)+)×B(Z(4430)+→π+ψ′)=(3.2-0.9-1. 6+1.8+5.3)×10-5, and signific ...

American Physical Society2009

Measurements of charmless hadronic b→s penguin decays in the π+π-K+π- final state and first observation of B0→ρ0K+π-

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Mingkui Wang, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Jing Li

We report measurements of charmless hadronic B0 decays into the π+π-K+π- final state. The analysis uses a sample of 657×106 BB̄ pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at the resonance. The decay B0→ρ0K+π- is obs ...

American Physical Society2009

Measurement of the e+e-→J/ψcc¯ cross section at s≈10.6 GeV

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Chao Wang, Vladislav Balagura

We present a new measurement of the e(+)e(-)-> J/psi c(c)over bar cross section where the c(c)over bar pair can fragment either into charmed hadrons or a charmonium state. In the former case the J/psi and a charmed hadron are reconstructed, while the latte ...

American Physical Society2009

Measurement of yCP in D0 meson decays to the KS0K+K- final state

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Vladislav Balagura, Jing Li

We present a measurement of the D-0 - (D) over bar (0) mixing parameter y(CP) using a flavor-untagged sample of D-0 -> (KSK+K-)-K-0 decays. The measurement is based on a 673 fb(-1) data sample recorded with the Belle detector at the KEKB asymmetric-energy ...

American Physical Society2009

Page 39 sur 44

The production of K-S(0) mesons in pp collisions at a centre-of-mass energy of 0.9 TeV is studied with the LHCb detector at the Large Hadron Collider. The luminosity of the analysed sample is determined using a novel technique, involving measurements of th ...

2010