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19912026
Showing 2009 · hep-exShow all

28 papers · 2 filters

hep-ex2009★ 81 cited

A Search for B+ -> tau+ nu Recoiling Against B- -> D0 l- nu X

The BABAR Collaboration, B. Aubert

We present a search for the decay () in pairs recorded with the BABAR detector at the PEP-II B-Facto…

hep-ex2009★ 7 cited

Observation of inclusive production in the decay of

The BABAR Collaboration, B. Aubert

We present a study of the inclusive production in the decay of using mesons collected with the BaBar detector at the …

hep-ex2009★ 21 cited

Measurement of branching fractions of B decays to K1(1270)pi and K1(1400)pi and determination of the CKM angle alpha from B0 --> a1(1260)+/- pi-/+

The BABAR Collaboration, B. Aubert

We report measurements of the branching fractions of neutral and charged B meson decays to final states containing a K_1(1270) or K_1(1400) meson and a charged pion. The data, coll…

hep-ex2009

Studies of charmonium-like states at BABAR

Arafat Gabareen Mokhtar

Several charmonium-like states above threshold have been discovered at the Belle and BABAR B-factories. Some of these states are produced via Initial State Radiation (e.…

hep-ex2009★ 287 cited

Precise measurement of the e+ e- to pi+ pi- (gamma) cross section with the Initial State Radiation method at BABAR

The BABAR Collaboration, B. Aubert

A precise measurement of the cross section of the process e+ e- to pi+ pi- (gamma) from threshold to an energy of 3 GeV is obtained with the initial state radiation (ISR) method us…

hep-ex2009★ 48 cited

Measurement of D0-D0bar Mixing using the Ratio of Lifetimes for the Decays D0->K-pi+ and K+K-

The BABAR Collaboration, B. Aubert

We measure the rate of D0-D0bar mixing with the observable yCP=(tauKpi/tauKK)-1, where tauKK and tauKpi are respectively the mean lifetimes of CP-even D0->K+K- and CP-mixed D0->K-p…

hep-ex2009★ 41 cited

Measurement and interpretation of moments in inclusive semileptonic decays Bbar --> X_c l- nubar

The BABAR Collaboration, B. Aubert

We present results for the moments of observed spectra in inclusive semileptonic B-meson decays to charm hadrons Bbar --> X_c l- nubar. Moments of the hadronic-mass and the combine…

hep-ex2009★ 112 cited

Study of decays to in inclusive interactions

The BABAR Collaboration, B. Aubert

We observe the decays D^*_{s1}(2710)^+ \to D^*KD^*_{sJ}(2860)^+ \to D^*KD K$ final state. We also observe, in the…

hep-ex2009★ 9 cited

Observation and Polarization Measurement of B0 --> a1(1260)+ a1(1260)- Decay

The BABAR Collaboration, B. Aubert

We present measurements of the branching fraction B and the longitudinal polarization fraction fL for B0 -> a1(1260)+ a1(1260)- decays, with a1(1260)+/- -> π- π+ π+/-. The data sam…

hep-ex2009★ 6 cited

Observation of the baryonic B-decay B0bar -> Lambda_c^+ antiproton K^- pi^+

The BABAR Collaboration, B. Aubert

We report the observation of the baryonic B-decay B0bar -> Lambda_c^+ antiproton K^- pi^+, excluding contributions from the decay B0bar -> Lambda_c^+ anti-Lambda K^-. Using a data…

hep-ex2009★ 24 cited

B meson decays to charmless meson pairs containing eta or eta' mesons

The BABAR Collaboration, B. Aubert

We present updated measurements of the branching fractions for B0 meson decays to etaK0, etaeta, etaphi, etaomega, eta'K0, eta'eta', eta'phi, and eta'omega, and branching fractions…

hep-ex2009★ 21 cited

Model-independent search for the decay B -> l nu gamma

The BABAR Collaboration, B. Aubert

We present a search for the radiative leptonic decay B+ -> l+ nu gamma, where l=e,mu, using a data sample of 465 million B-meson pairs collected by the BABAR experiment. In this an…

hep-ex2009★ 37 cited

Measurement of Branching Fractions and CP and Isospin Asymmetries in B -> K*(892) gamma Decays

The BABAR Collaboration, B. Aubert

We present an analysis of the decays B0 -> K*0 gamma and B+ -> K*+ gamma using a sample of 383 million BBbar events collected with the BaBar detector at the PEP2 asymmetric energy…

hep-ex2009★ 3 cited

A Bottom-Up Approach to SUSY Analyses

Claus Horn

This paper proposes a new way to do event generation and analysis in searches for new physics at the LHC. An abstract notation is used to describe the new particles on a level whic…

hep-ex2009★ 66 cited

Search for 14.4 keV solar axions emitted in the M1-transition of 57Fe nuclei with CAST

CAST Collaboration, S. Andriamonje, S. Aune +58

We have searched for 14.4 keV solar axions or more general axion-like particles (ALPs), that may be emitted in the M1 nuclear transition of 57Fe, by using the axion-to-photon conve…

hep-ex2009★ 63 cited

Search for a low-mass Higgs boson in Y(3S)-->gamma A^0, A^0-->tau^+tau^- at BABAR

The BABAR Collaboration, B. Aubert

We search for a light Higgs boson, , in the radiative decay , , or . The data sample contains 122 m…

hep-ex2009★ 199 cited

Search for Dimuon Decays of a Light Scalar Boson in Radiative Transitions Upsilon -> gamma A0

The BABAR Collaboration, B. Aubert

We search for evidence of a light scalar boson in the radiative decays of the Upsilon(2S) and Upsilon(3S) resonances: Upsilon(2S,3S)-> gamma A0, A0 -> mu^+ mu^-. Such a particle ap…

hep-ex2009★ 63 cited

Time-dependent amplitude analysis of B0 --> K0S pi+ pi-

The BABAR Collaboration, B. Aubert

We perform a time-dependent amplitude analysis of decays to extract the CP violation parameters of and and the direct CP asy…

hep-ex2009★ 4 cited

Renaissance of the ~1 TeV Fixed-Target Program

T. Adams, J. A. Appel, K. E. Arms +33

This document describes the physics potential of a new fixed-target program based on a ~1 TeV proton source. Two proton sources are potentially available in the future: the existin…

hep-ex2009★ 93 cited

Measurement of |V_cb| and the Form-Factor Slope in Bbar -> D l- nubar Decays in Events Tagged by a Fully Reconstructed B Meson

The BABAR Collaboration, B. Aubert

We present a measurement of the Cabibbo-Kobayashi-Maskawa matrix element |V_cb| and the form-factor slope rho^2 in Bbar -> Dl- nubar decays based on 460 million BBar events recorde…

hep-ex2009★ 21 cited

Measurement of the Branching Fraction and Lambda-bar Polarization in B0 -> Lambda-bar p pi-

The BABAR Collaboration, B. Aubert

We present a measurement of the B0 --> Lambda-bar p pi- branching fraction performed using the BaBar detector at the PEP-II asymmetric e+e- collider. Based on a sample of 467 milli…

hep-ex2009★ 20 cited

Search for b-> u transitions in B0 -> D0 K*0 decays

The BABAR Collaboration, B. Aubert

We present a study of the decays B0 -> D0 K*0 and B0 -> barD0 K*0 with K*0 -> K+pi-. The D0 and the barD0 mesons are reconstructed in the final states f=K+pi-, K+pi-pi0, K+pi-pi+pi…

hep-ex2009★ 14 cited

Improved limits on lepton flavor violating tau decays to l phi, l rho, l K* and l K*bar

The BABAR Collaboration, B. Aubert

We search for the neutrinoless, lepton-flavor-violating tau decays tau -> l V^0, where l is an electron or muon and V^0 is a vector meson reconstructed as phi -> K^+K^-, rho -> pi^…

hep-ex2009★ 20 cited

Measurement of the Semileptonic Decays B --> D tau- nubar_tau and B --> D* tau- nubar_tau

The BABAR Collaboration, B. Aubert

We present measurements of the semileptonic decays B- --> D0 tau- nubar_tau, B- --> D*0 tau- nubar_tau, B0bar --> D+ tau- nubar_tau, and B0bar --> D*+ tau- nubar_tau, which are sen…