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19922026
Showing 2004 · hep-exShow all

20 papers · 2 filters

hep-ex2004★ 44 cited

Measurement of Branching Fractions and Charge Asymmetries for Exclusive B Decays to Charmonium

B. Aubert, BABAR Collaboration

We report measurements of branching fractions and charge asymmetries of exclusive decays of neutral and charged B mesons into two-body final states containing a charmonium state an…

hep-ex2004★ 16 cited

Search for neutrinoless double beta decay with the NEMO-3 detector: first results

Xavier Sarazin

The NEMO-3 detector, which has been operating in the Frejus Underground Laboratory since February 2003, is devoted to searching for neutrinoless double beta decay (ββ0 ν). The expe…

hep-ex2004★ 33 cited

The θ_{13} and δ_{CP} sensitivities of the SPL-Frejus project revisited

Jean Eric Campagne, Antoine Cazes

An optimization of the CERN SPL beam line has been performed guided by the sensitivities to the θ_{13} mixing angle and to the δ_{CP} Dirac CP violating phase. A UNO-like 440 ktons…

hep-ex2004★ 46 cited

A search for the decay

B. Aubert, BABAR Collaboration

We search for the rare flavor-changing neutral-current decay in a data sample of 82 fb collected with the {\sl BABAR} detector at the PEP-II B-factory.…

hep-ex2004★ 7 cited

Coherent Soft Particle Production in Z Decays into Three Jets

The DELPHI Collaboration, J. Abdallah

Low-energy particle production perpendicular to the event plane in three-jet events produced in Z decays in e+e- annihilation is measured and compared to that perpendicular to the…

hep-ex2004

The Measurement of Time-Dependent CP-Violating Asymmetries in Loop-Dominated B Decays with BABAR

Andreas Hocker

We report on preliminary measurements of time-dependent CP asymmetries in neutral B decays to CP eigenstates with transition amplitudes that are dominated by penguin-type loops. Th…

hep-ex2004★ 36 cited

Measurement of K^0_e3 form factors

NA48 collaboration

The semileptonic decay of the neutral K meson, KL -> pi e nu (Ke3), was used to study the strangeness-changing weak interaction of hadrons. A sample of 5.6 million reconstructed ev…

hep-ex2004★ 35 cited

Study of 2b-decay of Mo-100 and Se-82 using the NEMO3 detector

the NEMO Collaboration, R. Arnold

After analysis of 5797 h of data from the detector NEMO3, new limits on neutrinoless double beta decay of Mo-100 (T_{1/2} > 3.1 10^{23} y, 90% CL) and Se-82 (T_{1/2} > 1.4 10^{23}…

hep-ex2004★ 2 cited

Measurement of Neutral B Decay Branching Fractions to Kspi+pi- Final States

B. Aubert, BABAR Collaboration

Branching fraction measurements using B-meson decays to Kspi+pi- are presented. These measurements were obtained by analyzing a data sample of 88.9 million Y(4S) --> BB decays coll…

hep-ex2004★ 16 cited

Search for CP violation in K0 -> 3 pi0 decays

NA48 Collaboration

Using data taken during the year 2000 with the NA48 detector at the CERN SPS, a search for the CP violating decay K_S -> 3 pi0 has been performed. From a fit to the lifetime distri…

hep-ex2004★ 62 cited

A general search for new phenomena in ep scattering at HERA

H1 Collaboration

A model-independent search for deviations from the Standard Model prediction is performed in e^+ p and e^- p collisions at HERA using H1 data corresponding to an integrated luminos…

hep-ex2004★ 14 cited

Measurement of the B0bar --> D*+ l- nubar_l Decay Rate and |Vcb|

B. Aubert, BABAR Collaboration

We present a measurement of the Cabibbo-Kobayashi-Maskawa matrix element |Vcb| based on a sample of about 53,700 B0bar --> D*+ l- nubar_l decays observed by the BaBar detector. We…

hep-ex2004★ 10 cited

Search for the decay B0 --> J/psi gamma

BABAR collaboration

We present the results of a search for the radiative decay B0 --> J/psi gamma in a data set containing 123 million Y(4S)--> B B-bar decays, collected by the BABAR detector at the P…

hep-ex2004★ 13 cited

Measurement of the Proton Structure Function F_2 at low Q^2 in QED Compton Scattering at HERA

H1 Collaboration

The proton structure function F_2(x,Q^2) is measured in inelastic QED Compton scattering using data collected with the H1 detector at HERA. QED Compton events are used to access th…

hep-ex2004★ 11 cited

Search for bosonic stop decays in R-parity violating supersymmetry in e^+ p collisions at HERA

H1 Collaboration

A search for scalar top quarks in R-parity violating supersymmetry is performed in e^+ p collisions at HERA using the H1 detector. The data, taken at sqrt{s}=319 GeV and 301 GeV, c…

hep-ex2004★ 46 cited

A Measurement of the Total Width, the Electronic Width, and the Mass of the Upsilon(10580) Resonance

B. Aubert

We present a measurement of the parameters of the resonance based on a dataset collected with the BABAR detector at the SLAC PEP-II asymmetric factory. We measure th…

hep-ex2004★ 60 cited

Double Helicity Asymmetry in Inclusive Mid-Rapidity neutral pion Production for Polarized p+p Collisions at sqrt(s)=200 GeV

the PHENIX Collaboration, S. Adler

We present a measurement of the double longitudinal spin asymmetry in inclusive pi^0 production in polarized proton-proton collisions at sqrt(s)=200 GeV. The data were taken at the…

hep-ex2004★ 30 cited

Measurement of the Direct CP Asymmetry in b -> s gamma Decays

B. Aubert, BABAR Collaboration

We describe a measurement of the direct CP asymmetry between inclusive b -> s gamma and bbar -> sbar gamma decays. This asymmetry is expected to be less than 0.01 in the Standard M…

hep-ex2004★ 142 cited

Evidence for a Narrow Anti-Charmed Baryon State

H1 Collaboration

A narrow resonance in D*- p and D*+ pbar invariant mass combinations is observed in inelastic electron-proton collisions at centre-of-mass energies of 300 GeV and 320 GeV at HERA.…

hep-ex2004★ 21 cited

Measurements of CP-violating Asymmetries in Decays

The BABAR Collaboration, B. Aubert

We present a measurement of the time-dependent CP-violating (CPV) asymmetries in decays based on 124 million decays collected with the…