Aj Martinez

activity

20082013

most citedMeasurement of an Excess of B -> D(*) Tau Nu Decays and Implications for Charged Higgs Bosons

728 citations · 3.2k across the 43 of their papers we have counts for

collaborators

43 papers

hep-ex2013★ 11 cited

Measurement of the B+ --> omega l+ nu branching fraction with semileptonically tagged B mesons

The BABAR Collaboration, J. P. Lees, others

We report a measurement of the branching fraction of the exclusive charmless semileptonic decay B+ --> omega l+ nu, where l is either an electron or a muon. We use samples of B+ me…

hep-ex2013★ 81 cited

Production of charged pions, kaons and protons in e+e- annihilations into hadrons at sqrt{s} = 10.54 GeV

The BABAR Collaboration, J. P. Lees, others

Inclusive production cross sections of $π^{\pm}$ , $K^{\pm}$ and $p p ˉ$ per hadronic $e^{+} e^{-}$ annihilation event in $e^{+} e^{-}$ are measured at a center-of-mass energy of 10.54 GeV, us…

hep-ex2013★ 16 cited

A Search for the Rare Decays B --> pi l+l- and B0 --> eta l+l-

The BABAR Collaboration, J. P. Lees, others

We present the results of a search for the rare flavor-changing neutral-current decays B --> pi l+l- (pi=pi+/-, pi0 and l = e,mu) and B0 --> eta l+l- using a sample of e+e- --> Y(4…

hep-ex2013★ 728 cited

Measurement of an Excess of B -> D(*) Tau Nu Decays and Implications for Charged Higgs Bosons

The BABAR Collaboration, J. P. Lees, others

Based on the full BaBar data sample, we report improved measurements of the ratios R(D(*)) = B(B -> D(*) Tau Nu)/B(B -> D(*) l Nu), where l is either e or mu. These ratios are sens…

hep-ex2013★ 168 cited

Study of e+e- --> p anti-p via initial-state radiation at BABAR

The BABAR Collaboration

The process e+e- --> p anti-p gamma is studied using 469 fb-1 of integrated luminosity collected with the BABAR detector at the PEP-II collider, at an e+e- center-of-mass energy of…

hep-ex2012★ 11 cited

The branching fraction of tau --> pi- K0S K0S (pi0) nu decays

J. P. Lees

We present a study of tau- --> pi- K0S K0S (pi0) nu and tau- --> K- K0S K0S (pi0) nu decays using a dataset of 430 million tau lepton pairs, corresponding to an integrated luminosi…

hep-ex2012★ 11 cited

Search for resonances decaying to eta_c pi+ pi- in two-photon interactions

The BABAR Collaboration, J. P. Lees, others

We report a study of the process gamma gamma -> X -> eta_c pi+ pi-, where X stands for one of the resonances chi_{c2}(1P), eta_c(2S), X(3872), X(3915), or chi_{c2}(2P). The analysi…

hep-ex2011★ 17 cited

B0 meson decays to rho0 K0, f0 K0, and rho-K+, including higher K resonances

The BABAR Collaboration

We present branching fraction measurements for the decays B0 -> rho0 K*0, B0 -> f0 K*0, and B0 -> rho- K*+, where K* is an S-wave (K pi)_0* or a K*(892) meson; we also measure B0 -…

hep-ex2011★ 57 cited

Search for the rare decays Bs -->mumu and Bd -->mumu

LHCb Collaboration, R. Aaij, B. Adeva +542

A search for the decays Bs-->mumu and Bd-->mumu is performed with about 37 pb^{-1} of pp collisions at sqrt{s} = 7 TeV collected by the LHCb experiment at the Large Hadron Collider…

hep-ex2011★ 37 cited

Evidence for the h_b(1P) meson in the decay Upsilon(3S) --> pi0 h_b(1P)

The BABAR Collaboration, J. P. Lees, V. Poireau +406

Using a sample of 122 million Upsilon(3S) events recorded with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at SLAC, we search for the $h_{b} (1 P)$ spin-singlet pa…

hep-ex2010★ 11 cited

Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B+ -> rho0 K+ and B+ -> f0(980)K+ decays

P. del Amo Sanchez

We present measurements of the branching fractions, longitudinal polarization, and direct CP-violation asymmetries for the decays B+ -> rho0 K*+ and B+ -> f0(980) K*+ with a sample…

hep-ex2010★ 53 cited

Search for the Rare Decay B->K nu nubar

The BABAR Collaboration, P. del Amo Sanchez

We present a search for the rare decays B+ -> K+ nu nubar and B0 -> K0 nu nubar using 459 million BBbar pairs collected with the BaBar detector at the SLAC National Accelerator Lab…

hep-ex2010

Evidence for B+ --> tau+ nu_tau decays using hadronic B tags

The BABAR Collaboration, P. del Amo Sanchez

We present a search for the decay B+ --> tau+ nu_tau using 467.8 x 10^6 B B-bar pairs collected at the Upsilon(4S) resonance with the BABAR detector at the SLAC PEP-II B-Factory. W…

hep-ex2010★ 2 cited

Correlated leading baryon-antibaryon production in e+e- --> ccbar --> Lambda_c+ antiLambda_c- X

The BABAR Collaboration, B. Aubert

We present a study of 649 \pm 35 e+e- --> ccbar events produced at sqrt{s}~10.6 GeV containing both a Lambda_c baryon and a Lambda_c antibaryon. The number observed is roughly four…

hep-ex2010★ 14 cited

Study of B -> X gamma Decays and Determination of |V_td/V_ts|

The BABAR Collaboration, P. del Amo Sanchez

Using a sample of 471 million BBbar events collected with the BaBar detector, we study the sum of seven exclusive final states B->X_s(d) gamma, where X_s(d) is a strange (non-stran…

hep-ex2010★ 76 cited

Evidence for direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with B-+ --> D() K()-+ decays

The BABAR Collaboration, P. del Amo Sanchez

We report the measurement of the Cabibbo-Kobayashi-Maskawa CP-violating angle $γ$ through a Dalitz plot analysis of neutral $D$ meson decays to $K_{S}^{0} π^{+} π^{-}$ and $K_{S}^{0} K^{+} K^{-}$ …

hep-ex2010★ 4 cited

Search for B+ -> D+ K0 and B+-> D+ K*0 decays

The BABAR Collaboration, P. del Amo Sanchez

We report a search for the rare decays $B^{+} \to D^{+} K^{0}$ and $B^{+} \to D^{+} K^{* 0}$ in an event sample of approximately 465 million $B B ˉ$ pairs collected with the BaBar detector…

hep-ex2010★ 12 cited

B-meson decays to eta' rho, eta' f0, and eta' K*

The BaBar Collaboration, P. del Amo Sanchez

We present measurements of B-meson decays to the final states eta'rho, eta'f0, and eta'K*, where K* stands for a vector, scalar, or tensor strange meson. We observe a significant s…

hep-ex2010★ 40 cited

Observation of the $Υ (1^{3} D_{J})$ Bottomonium State through Decays to $π^{+} π^{-} Υ (1 S)$

P. del Amo Sanchez, the BABAR Collaboration

Based on $122 \times 1 0^{6}$ \ThreeS events collected with the \babar\ detector, we have observed the \OneDJ bottomonium state through the $\ThreeS\to\g\g\OneDJ\to\g\g\pip\pim\OneS$ d…

hep-ex2010★ 31 cited

Test of lepton universality in Upsilon(1S) decays at BaBar

The BABAR Collaboration, P. del Amo Sanchez

The ratio $R_{τ μ} (Υ (1 S)) = Γ_{Υ (1 S) \to τ^{+} τ^{-}} / Γ_{Υ (1 S) \to μ^{+} μ^{-}}$ is measured using a sample of $(121.8 \pm 1.2) \times 1 0^{6}$ $Υ (3 S)$ events recorded by the BABAR detector. This measur…

hep-ex2010★ 103 cited

Observation of the chi_c2(2P) meson in the reaction gamma gamma -> D Dbar at BABAR

The BABAR Collaboration, B. Aubert

A search for the Z(3930) resonance in gamma gamma production of the DDbar system has been performed using a data sample corresponding to an integrated luminosity of 384 fb^-1 recor…

hep-ex2009

Measurements of Charged Current Lepton Universality and $∣ V_{u s} ∣$ using Tau Lepton Decays to $e^{-} ν ˉ_{e} ν_{τ}$ , $μ^{-} ν ˉ_{μ} ν_{τ}$ , $π^{-} ν_{τ}$ , and $\K^- ν_τ$

The BABAR Collaboration, B. Aubert

Using 467 $f b^{- 1}$ of $e^{+} e^{-}$ annihilation data collected with the BaBar detector, we measure $\frac{\cal{B}(τ^- \to μ^- \barν_μν_τ)}{\cal{B}(τ^- \to e^- \barν_e ν_τ)} = (0.9796…

hep-ex2009★ 41 cited

Measurements of the $τ$ Mass and Mass Difference of the $τ^{+}$ and $τ^{-}$ } at BaBar

The BaBar Collaboration, B. Aubert

We present the result from a precision measurement of the mass of the $τ$ lepton, $M_{τ}$ , based on $423 f b^{- 1}$ of data recorded at the $Υ (4 S)$ resonance with the BaBar detector. U…

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…

Measurement of the B+ --> omega l+ nu branching fraction with semileptonically tagged B mesons

Production of charged pions, kaons and protons in e+e- annihilations into hadrons at sqrt{s} = 10.54 GeV

A Search for the Rare Decays B --> pi l+l- and B0 --> eta l+l-

Measurement of an Excess of B -> D(*) Tau Nu Decays and Implications for Charged Higgs Bosons

Study of e+e- --> p anti-p via initial-state radiation at BABAR

The branching fraction of tau --> pi- K0S K0S (pi0) nu decays

Search for resonances decaying to eta_c pi+ pi- in two-photon interactions

B0 meson decays to rho0 K*0, f0 K*0, and rho-K*+, including higher K* resonances

Search for the rare decays Bs -->mumu and Bd -->mumu

Evidence for the h_b(1P) meson in the decay Upsilon(3S) --> pi0 h_b(1P)

Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B+ -> rho0 K*+ and B+ -> f0(980)K*+ decays

Search for the Rare Decay B->K nu nubar

Evidence for B+ --> tau+ nu_tau decays using hadronic B tags

Correlated leading baryon-antibaryon production in e+e- --> ccbar --> Lambda_c+ antiLambda_c- X

Study of B -> X gamma Decays and Determination of |V_td/V_ts|

Evidence for direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with B-+ --> D(*) K(*)-+ decays

Search for B+ -> D+ K0 and B+-> D+ K*0 decays

B-meson decays to eta' rho, eta' f0, and eta' K*

Observation of the Υ(13DJ​) Bottomonium State through Decays to π+π−Υ(1S)

Test of lepton universality in Upsilon(1S) decays at BaBar

Observation of the chi_c2(2P) meson in the reaction gamma gamma -> D Dbar at BABAR

Measurements of Charged Current Lepton Universality and ∣Vus​∣ using Tau Lepton Decays to e−νˉe​ντ​, μ−νˉμ​ντ​, π−ντ​, and $\K^- ν_τ$

Measurements of the τ Mass and Mass Difference of the τ+ and τ−} at BaBar

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

B0 meson decays to rho0 K0, f0 K0, and rho-K+, including higher K resonances

Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B+ -> rho0 K+ and B+ -> f0(980)K+ decays

Evidence for direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with B-+ --> D() K()-+ decays

Observation of the $Υ (1^{3} D_{J})$ Bottomonium State through Decays to $π^{+} π^{-} Υ (1 S)$

Measurements of Charged Current Lepton Universality and $∣ V_{u s} ∣$ using Tau Lepton Decays to $e^{-} ν ˉ_{e} ν_{τ}$ , $μ^{-} ν ˉ_{μ} ν_{τ}$ , $π^{-} ν_{τ}$ , and $\K^- ν_τ$

Measurements of the $τ$ Mass and Mass Difference of the $τ^{+}$ and $τ^{-}$ } at BaBar