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Recent results on B physics at Tevatron  [PDF]
N. D'Ascenzo,for the CDF,D0 collaborations
Physics , 2010,
Abstract: The measurement of the CP violation in the b-meson system and of b-meson rare decays provides information about the electroweak symmetry breaking in terms of flavour structure of the CKM matrix and flavour changing neutral currents. The deviation of the experimental observations from the Standard Model predictions allows to constrain new physics. In this paper recent results from Tevatron are reported.
Recent B Physics Results from the Tevatron  [PDF]
Satyajit Behari
Physics , 2011,
Abstract: We review recent B physics results from the CDF and Dzero experiments in p-pbar collisions at sqrt(s) = 1.96 TeV. Using a data sample of 1.4-6.0 fb-1 collected by the CDF II detector we present searches for New Physics in Bs sector and some competitive results with B-factories in the B/charm sector. In the first category we report the BR in Bs -> J/psi f0(980) decays and the time-integrated mixing probability chi-bar of B mesons. In the second category BR and Acp in doubly Cabibbo-suppressed B+- -> D0 h+- decays and time-integrated CP violation in D0 -> h+ h- are presented.
Two Recent Results on B Physics from CDF  [PDF]
Michael P. Schmidt,for the CDF collaboration
Physics , 1999,
Abstract: Preliminary results from two recent CDF b physics analysis are presented. The first obtains sin(2beta) = 0.79 + 0.41 -0.44 from a measurement of the asymmetry in B0, B0bar to J/psi K_short decays, providing the best direct indication so far that CP invariance is violated in the b sector. The second obtains new results on the parity even (A_0 and A_par) and odd (A_perp) polarization amplitudes from full angular analyses of B0 to J/psi K*0 and B_s to J/psi phi decays.
Recent B physics results from CLEO  [PDF]
Eckhard von Toerne,for the CLEO collaboration
Physics , 2003,
Abstract: The CLEO detector is located at the CESR e+e- collider in Ithaca, NY. CLEO's wide range of experimental measurements in b-hadron decays is represented by improved measurements of Vcb and Vub, rare B decays, and bb-bar spectroscopy. New experimental results in exclusive hadronic transitions will aid theorists in developing a theory of hadronic B decays. Such a theory will have consequences for the extraction of angles of the unitarity triangle, especially gamma. Recently, the CLEO collaboration has shifted its focus towards precision measurements at lower energies. Based on the new Y(3S) data, we present the observation of a new bound bb-bar state. An outlook on the planned running at tau/charm-energies (CLEO-c) is given and implications for b-physics are discussed.
Recent LEP 2 Results from OPAL  [PDF]
D. Glenzinski
Physics , 1997,
Abstract: In 1996, after another set of upgrades, LEP began running for the first time at center-of-mass energies above the W-pair production threshold. This new energy regime is rich in physics and offers new tests of the Standard Model, increased sensitivity for search physics, and precision W physics. We summarize the recent results from OPAL using 9.9 pb^-1 of data collected at \sqrt s = 161.3 GeV from June to August 1996.
Recent QCD results from OPAL  [PDF]
Marina Giunta
Physics , 2004,
Abstract: Some recent QCD results from the OPAL Collaboration are summarized. In particular: a test of color reconnection models and a search for glueballs using gluon jets with a rapidity gap; a study of unbiased gluon jet properties using a new technique called jet boost algorithm; a measurement of the strong coupling constant from radiative events.
Recent Results on Particle Production from OPAL  [PDF]
J. H. Vossebeld
Statistics , 2001,
Abstract: Three recent OPAL studies are presented in which the fragmentation process in quark and gluon jets and in identified up, down and strange flavour jets is studied. The first is a measurement of charged particle, pi0, eta and K0 multiplicities in quark and gluon jets. No evidence is found for a particle-species dependent multiplicity enhancement in gluon jets. In another study leading pion, kaon, K0, proton and lambda rates have been measured in up, down and strange flavour jets. The results confirm the leading particle effect in the fragmentation of light flavour jets. In addition, a direct determination of the strangeness suppression factor has been performed, yielding gamma_s=0.422 +/- 0.049(stat.) +/- 0.059(syst.). In a third study, mean charged particle multiplicities were measured for up, down and strange flavoured Z0 decays and found to be identical within the uncertainties of the measurement, as expected from the flavour independence of the strong interaction.
Physics and recent results from LHCb  [cached]
Passaleva G.
EPJ Web of Conferences , 2012, DOI: 10.1051/epjconf/20123701004
Abstract: The LHCb experiment has collected more than 1 fb-1 of integrated luminosity in 2010 and 2011 and is producing a large amount of results in beauty and charmed meson physics. An overview of the most recent results on rare B decays, CP violation, and charmless B meson decays will be given along with an outlook to the physics perspectives and to the LHCb upgrade.
Recent Belle results in quarkonium physics  [PDF]
Roman Mizuk
Physics , 2013,
Abstract: We review selected recent Belle results in quarkonium physics, that include precision measurement of the eta_b(1S) parameters, evidence for the eta_b(2S); evidence for the psi_2(1D); observation of the psi(4040) and psi(4160) transitions to J/psi eta with anomalously high rates; observation of the Upsilon(5S) transitions to Upsilon(1D)pi+pi- and Upsilon(1S,2S)eta. The low excitations of charmonium and bottomonium are in agreement with the Lattice QCD and effective theories calculations, while high excitations show unexpected properties.
Recent results from heavy flavour physics on the lattice  [PDF]
Michele Della Morte
Physics , 2010,
Abstract: We discuss some recent lattice results on a few selected hadronic quantities relevant for heavy flavour phenomenology and present some recent theoretical developments. We put the emphasis on the challenges, which have to be faced, on the way to precise heavy flavour physics from the lattice. We also discuss the importance in the search for New Physics of possible future lattice studies of the form factors entering B --> K and B --> K* semileptonic decays.
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