Center for Russian, East European, and Eurasian Studies Scholarly Publications: Recent submissions
Now showing items 481-500 of 546
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Two-body B meson decays to eta and eta ': Observation of B ->eta K
(AMERICAN PHYSICAL SOC, 2000-07)In a sample of 19 x 10(6) produced B mesons, we have observed the decays B --> eta K* and improved our previous measurements of B --> eta'K. The branching fractions we measure for these decay modes are B(B+ --> eta K*(+)) ... -
Observation of the decay Omega(0)(c)->Omega(-)e(+)nu(e)
(AMERICAN PHYSICAL SOC, 2002-10)Using the CLEO detector at the Cornell Electron Storage Ring we have observed the Omega(c)(0) (css ground state) in the decay Omega(c)(0) --> Omega(-)e(+)nu(e). We find a signal of 11.4 +/- 3.8(stat) events. The probability ... -
Measurement of charge asymmetries in charmless hadronic B meson decays
(AMERICAN PHYSICAL SOC, 2000-07)We search for CP-violating charge asymmetries (A(CP)) in the B meson decays to K+/- pi(+/-), K+/- pi(0), K(S)(0)pi(+/-), K+/- eta', and omega pi(+/-). Using 9.66 million Y(4S) decays collected with the CLEO detector, the ... -
Search for CP violation in B-+/--> J/psi K-+/- and B-+/-->psi(2S)K-+/- decays
(AMERICAN PHYSICAL SOC, 2000-06)We present a search for direct CP violation in B+/- --> J/psi K+/- and B+/- --> psi(2S)K+/- decays. In a sample of 9.7 X 10(6) B (B) over bar meson pairs collected with the CLEO detector, we have fully reconstructed 534 ... -
Search for D-0-(0) mixing
(AMERICAN PHYSICAL SOC, 2000-05)We have studied the "wrong-sign" process D-0 --> K+ pi(-) to search for D-0-(D) over bar(0) mixing. The data come from 9.0 fb(-1) of e(+) e(-) collisions at root s approximate to 10 GeV recorded with the CLEO II.V detector. ... -
Observation of radiative leptonic decay of the tau lepton
(AMERICAN PHYSICAL SOC, 2000-01)Using 4.68 fb(-1) of e(+) e(-) annihilation data collected with the CLEO II detector at the Cornell Electron Storage Ring, we have studied tau radiative decays tau(-) --> nu(tau)mu(-)<<(nu)over bar>(mu)gamma and tau- --> ... -
Study of exclusive radiative B meson decays
(AMERICAN PHYSICAL SOC, 2000-06)We have studied exclusive, radiative B meson decays to charmless mesons in 9.7 X 10(6) B (B) over bar decays accumulated with the CLEO detector. We measure B(B-0 --> K*(0)(892)gamma) = (4.55(-0.68)(+0.72) +/- 0.34) X 10(-5) ... -
Search for inclusive b -> sl(+)l(-)
(AMERICAN PHYSICAL SOC, 1998-03)We have searched for the effective flavor changing neutral-current decays b --> sl+l(-) using an inclusive method. We set upper limits on the branching ratios B(b --> se(+)e(-)) < 5.7 x 10(-5), B(b --> s mu(+)mu(-)) < 5.8 ... -
Study of charmless hadronic B meson decays to pseudoscalar-vector final states
(AMERICAN PHYSICAL SOC, 2000-10)We report results of searches for charmless hadronic B meson decays to pseudoscalar (pi*(-), K*(-), pi(0), or K-S(0))-vector(rho, K*, or omega) final states. By using 9.7 X 10(6) B (B) over bar pairs collected with the ... -
Evidence of new states decaying into Xi(*)(c)pi
(AMERICAN PHYSICAL SOC, 1999-10)Using data recorded by the CLEO II detector at the Cornell Electron Storage Ring, we report evidence for two new charmed baryons, one decaying into Xi(c)(+) pi(+) pi(-) via an a intermediate Xi(c)(*o) and its isospin partner ... -
Improved measurement of vertical bar V-ub vertical bar with inclusive semileptonic B decays
(AMERICAN PHYSICAL SOC, 2002-06)We report a new measurement of the Cabibbo-Kobayashi-Maskawa parameter parallel toV(ub)parallel to made with a sample of 9.7x10(6) B (B) over bar events collected with the CLEO II detector. Using heavy quark theory, we ... -
Measurements of the mass, total width, and two-photon partial width of the eta(c) meson
(AMERICAN PHYSICAL SOC, 2000-10)Using 13.4 fb(-1) of data collected with the CLEO detector at the Cornell Electron Storage Ring, we have observed 300 events for the two-photon production of ground-state pseudoscalar charmonium in the decay eta(c) --> ... -
Observation of B -> K-+/-pi(0) and B -> K-0 pi(0) and evidence for B ->pi(+)pi(-)
(AMERICAN PHYSICAL SOC, 2000-07)We have studied charmless hadronic decays of B mesons into two-body final states with kaons and pions and observe three new processes with the following branching fractions: B(B --> pi(+)pi(-)) = (4.3(-1.4)(+1.6) +/- 0.5) ... -
Measurement of charm meson lifetimes
(AMERICAN PHYSICAL SOC, 1999-06)We report measurements of the D-0, D-,(+) and D-s(+) meson lifetimes using 3.7 fb(-1) of e(+)e(-) annihilation data collected near the Y(4S) resonance with the CLEO detector. The measured lifetimes of the D-0, D+, and ... -
Barok"t v slavjanskite literaturi. S osoben ogled na promenite v zhanrovata sistema na literaturite ot pravoslavnija region. Avtoreferat na disertacija za pris"zhdane na nauchnata i obrazovatelna stepen "Doktor" (05.04.06 - slavjanski literaturi)
(Sofijski universitet "Sv. Kliment Oxridski", Fakultet po slavjanski filologii, 2006-04-05) -
Observation of psi(3770)->gamma chi(c1)->gamma gamma J/psi
(AMERICAN PHYSICAL SOC, 2006-05)From e(+)e(-) collision data acquired with the CLEO detector at the Cornell Electron Storage Ring, we observe the non-D (D) over bar decay psi(3770)->gamma chi(c1) with a statistical significance of 6.6 standard deviations, ... -
Search for the decay (B)over-bar(0) -> D*(0)gamma
(AMERICAN PHYSICAL SOC, 2000-05)We report results of a search for the rare radiative decay (B) over bar(0) --> D*(0)gamma. Using 9.66 x 10(6) <B(B)over bar> meson pairs collected with the CLEO detector at the Cornell Electron Storage Ring, we set an upper ... -
Rate measurement of D0 -> K+pi-pi 0 and constraints on D-0 D(0)over-bar mixing
(AMERICAN PHYSICAL SOC, 2001-08)We present an observation and time-integrated rate measurement of the decay D-0-->K(+)pi (-)pi (0) produced in 9 fb(-1) of e(+)e(-) collisions near the Y(4S) resonance. The signal is inconsistent with an upward fluctuation ... -
First search for CP violation in tau lepton decay
(AMERICAN PHYSICAL SOC, 1998-11)We have performed the first search for CP violation in tau lepton decay. CP violation in lepton decay does not occur in the minimal standard model but can occur in extensions such as the multi-Higgs doublet model. It appears ... -
Search for CP violation in tau -> K pi nu(tau) decays
(AMERICAN PHYSICAL SOC, 2002-03)We search and find no evidence for CP violation in tau decays into the K pi v(tau) final state. We provide limits on the imaginary part of the coupling constant L describing a relative contribution of the CP violating ...
