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19912026
Showing 2009 · hep-exShow all

41 papers · 2 filters

hep-ex2009★ 28 cited

A study of the associated production of photons and b-quark jets in p-pbar collisions at sqrt{s} = 1.96 TeV

CDF collaboration

The cross section for photon production in association with at least one jet containing a -quark hadron has been measured in proton antiproton collisions at TeV.…

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★ 83 cited

Search for Fermion-Pair Decays $Q\Qbar \to (\t\Wmp)(\tbar\Wpm)$ in Same-Charge Dilepton Events

The CDF Collaboration

We report the most restrictive direct limits on masses of fourth-generation down-type quarks , and quark-like composite fermions ( or ), decaying promptly t…

hep-ex2009★ 29 cited

Measurement of the WW+WZ Production Cross Section Using the Lepton+Jets Final State at CDF II

The CDF Collaboration

We report two complementary measurements of the WW+WZ cross section in the final state consisting of an electron or muon, missing transverse energy, and jets, performed using p\bar…

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★ 14 cited

Measurement of CP violation observables and parameters for the decays

The BaBar Collaboration, B. Aubert

We study the decay using a sample of 379 events collected with the BABAR detector at the PEP-II -factory. We perform a "GLW" an…

hep-ex2009★ 41 cited

Measurements of the Mass and Mass Difference of the and } at BaBar

The BaBar Collaboration, B. Aubert

We present the result from a precision measurement of the mass of the lepton, , based on of data recorded at the resonance with the BaBar detector. U…

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★ 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★ 15 cited

A Search for the Higgs Boson Produced in Association with Using the Matrix Element Method at CDF II

The CDF Collaboration, T. Aaltonen

We present a search for associated production of the standard model (SM) Higgs boson and a boson where the boson decays to two leptons and the Higgs decays to a pair of …

hep-ex2009★ 63 cited

A Search for Invisible Decays of the Upsilon(1S)

The BABAR Collaboration, B. Aubert

We search for invisible decays of the Upsilon(1S) meson using a sample of 91.4 x 10^{6} Upsilon(3S) mesons collected at the BaBar/PEP-II B-factory. We select events containing the…

hep-ex2009★ 1 cited

Diffraction and Vector Mesons Working Group Summary

Markus Diehl, Paul Laycock, Christophe Royon

We summarise the talks presented in the working group on diffraction and vector mesons at the DIS 2009 workshop.

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★ 49 cited

Measurement of of Drell-Yan pairs in the Mass Region from Collisions at TeV

The CDF Collaboration, T. Aaltonen

We report on a CDF measurement of the total cross section and rapidity distribution, , for events in the boson mass region ($66<M_{ee…

hep-ex2009★ 635 cited

Searches for Lepton Flavor Violation in the Decays tau -> e gamma and tau -> mu gamma

The BABAR Collaboration, B. Aubert

Searches for lepton-flavor-violating decay of a tau lepton to a lighter mass lepton and a photon have been performed with the entire dataset of (963 +- 7) x 10^6 tau decays collect…

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★ 8 cited

Search for B-meson decays to b1rho and b1K*

The BABAR Collaboration, B. Aubert

We present a search for decays of mesons to final states with a meson and a or meson. The search is based on a data sample consisting of 465 million $B\ke…

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★ 9 cited

Searching the Inclusive Lepton + Photon + Missing ET + b-quark Signature for Radiative Top Quark Decay and Non-Standard-Model Processes

CDF Collaboration, T. Aaltonen

In a search for new phenomena in a signature suppressed in the standard model of elementary particles (SM), we compare the inclusive production of events containing a lepton, a pho…

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★ 39 cited

Search for a Higgs Boson Produced in Association with a W Boson in pbar-p Collisions at sqrt{s} = 1.96 TeV

CDF Collaboration, T. Aaltonen

We present a search for a standard model Higgs boson produced in association with a W boson using 2.7 1/fb of integrated luminosity of pbar-p collision data taken at sqrt{s} = 1.96…