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most citedFirst M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole

4.3k citations

Showing 2006 · hep-exShow all

50 papers · 2 filters

hep-ex2006★ 48 cited

Study of decays

The Belle Collaboration, A. Kuzmin

We report the results of a study of neutral B meson decays to the D^0 pi+ pi- final state, where the D^0 is fully reconstructed. The results are obtained from an event sample conta…

hep-ex2006★ 31 cited

Observation of the decay Upsilon(4S) -> Upsilon(1S) pi+ pi-

The Belle Collaboration

We study transitions between Upsilon states with the emission of charged pions using 477 fb^{-1} of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- colli…

hep-ex2006★ 186 cited

J/psi Production vs Transverse Momentum and Rapidity in p+p Collisions at sqrt(s) = 200 GeV

PHENIX Collaboration, A. Adare

J/Psi production in p+p collisions at sqrt(s) = 200 GeV has been Measured in the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) over a rapidity range of -2.2 < y <…

hep-ex2006★ 36 cited

A Search for the Rare Leptonic Decays B+ -> mu+ nu and B+ -> e+ nu

N. Satoyama

We present a search for the decays B+ -> mu+ nu_mu and B+ -> e+ nu_e in a 253 fb-1 data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energ…

hep-ex2006★ 63 cited

Moments of the Hadronic Invariant Mass Spectrum in B --> X_c l nu Decays at Belle

C. Schwanda

We present a measurement of the hadronic invariant mass squared (M^2_X) spectrum in charmed semileptonic B meson decays B --> X_c l nu based on 140 fb^-1 of Belle data collected ne…

hep-ex2006★ 60 cited

Dalitz Analysis of Three-body Charmless B0=>K0pi+pi- Decay

A. Garmash

We report results of a Dalitz plot analysis of the three-body charmless B0=>K0pi+pi- decay. The analysis is performed with a data sample that contains 388 million BBbar pairs colle…

hep-ex2006★ 19 cited

First Observation of the Decay tau^- -> phi K^- nu_tau

Belle colaboration

We present the first observation of tau lepton decays to hadronic final states with a phi-meson. This analysis is based on 401 fb^-1 of data accumulated at the Belle experiment. Th…

hep-ex2006★ 4 cited

Search for B+ -> J/psi eta' K+ and B0 -> J/psi eta' Ks0 Decays

Q. L. Xie

We report the results of searches for B+ -> J/psi eta' K+ and B0 -> J/psi eta' Ks0 decays, using a sample of 388 x 10^6 BBbar pairs collected with the Belle detector at the Upsilon…

hep-ex2006★ 99 cited

High statistics study of f_0(980) resonance in gamma gamma --> pi^+ pi^- production

The Belle Collaboration, K. Abe

We report on a high statistics measurement of the cross section of the process gamma gamma to pi^+ pi^- in the center-of-mass energy range 0.8 GeV/c^2 < W < 1.5 GeV/c^2 with 85.9 f…

hep-ex2006★ 54 cited

Moments of the electron energy spectrum and partial branching fraction of decays at Belle

P. Urquijo

We report a measurement of the inclusive electron energy spectrum for charmed semileptonic decays of B mesons in a 140fb-1 data sample collected at the Υ(4S) resonance with the Bel…

hep-ex2006★ 17 cited

Measurements of exclusive B_s^0 decays at the Y(5S) resonance

A. Drutskoy

Several exclusive decays are studied using a 1.86 fb-1 data sample collected at the Y(5S) resonance with the Belle detector at the KEKB asymmetric energy e^+ e^- collider.…

hep-ex2006★ 39 cited

Measurement of Single Muons at Forward Rapidity in p+p Collisions at sqrt(s) = 200 GeV and Implications for Charm Production

PHENIX Collaboration, S. S. Adler

Muon production at forward rapidity (1.5 < |η| < 1.8) has been measured by the PHENIX experiment over the transverse momentum range 1 < p_T \le 3 GeV/c in sqrt(s) = 200 GeV p+p col…

hep-ex2006★ 232 cited

Measurement of high-p_T Single Electrons from Heavy-Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV

PHENIX Collaboration, A. Adare

The momentum distribution of electrons from decays of heavy flavor (charm and beauty) for midrapidity |y| < 0.35 in p+p collisions at sqrt(s) = 200 GeV has been measured by the PHE…

hep-ex2006★ 25 cited

Measurements of time-dependent CP violation in , , and decays

Belle Collaboration

We present measurements of time-dependent CP asymmetries in , , and based on a sample of 535 p…

hep-ex2006★ 12 cited

Observation of the decay

M. -C. Chang

We report the first observation of decay. These results are obtained from a data sample that contains 449 million pairs accumulated at the resonan…

hep-ex2006★ 27 cited

A study of gamma gamma -> Ks Ks production at energies of 2.4-4.0GeV at Belle

W. T. Chen

production in two-photon collisions has been studied using a 397.6 fb data sample collected with the Belle detector at the KEKB collider. For the first…

hep-ex2006★ 10 cited

Improved measurements of branching fractions and CP partial rate asymmetries for and

by C. -M. Jen, P. Chang, K. Abe +2

We report improved measurements of to pseudoscalar-vector decays containing an meson in the final states. Our results are obtained from a data sample that contains $388\tim…

hep-ex2006★ 25 cited

Improved measurements of branching fractions for B -> K pi and B -> pi pi decays

S. -W. Lin, P. Chang

We report improved measurements of branching fractions for B -> K pi and B -> pi pi decays based on a data sample of 449 million B Bbar pairs collected at the Upsilon(4S) resonance…

hep-ex2006★ 12 cited

Observation of B^{\pm} \to χ_{c1} π^{\pm} and Search for Direct CP Violation

The Belle Collaboration, R. Kumar, J. B. Singh +1

We report the first observation of , the Cabibbo- and color-suppressed decay in a data sample of ~ events collected at the $Υ(4…

hep-ex2006★ 18 cited

The first observation of decay

Belle Collaboration

We present the first measurement of tau-decays to hadronic final states with a -meson. This is based on 401.4 fb of data accumulated at the Belle experiment. The branchin…

hep-ex2006★ 29 cited

Observation of B Decays to Two Kaons

S. -W. Lin, P. Chang

Using 449 million BBbar pairs collected with the Belle detector at the KEKB asymmetric-energy e^+e^- collider, we observe clear signals for B^+-> \bar{K}^0 K^+ and B^0-> \bar{K}^0…

hep-ex2006★ 45 cited

Measurement of the mass of the -lepton and an upper limit on the mass difference between and

The Belle Collaboration, K. Belous, M. Shapkin +1

The mass of the lepton has been measured in the decay mode using a pseudomass technique. The result obtained from of data collected with the…

hep-ex2006★ 101 cited

Experimental Constraints on the Spin and Parity of the Lambda_c(2880)

R. Mizuk

We report the results of several studies of the Lambda_c+pi+pi-X final state in continuum e+e- annihilation data collected by the Belle detector. An analysis of angular distributio…

hep-ex2006★ 113 cited

Observation of Time-Dependent CP Violation in B0 -> eta' K0 Decays and Improved Measurements of CP Asymmetries in B0 -> phiK0, KsKsKs and B0 -> J/psi K0 Decays

The Belle Collaboration, K. -F. Chen

We present improved measurements of CP-violation parameters in B0->phiK0, eta'K0, KsKsKs decays based on a sample of 535x10^6 BBbar pairs collected at the Y(4S) resonance with the…