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Book Synopsis New Suppressed Decays of Bs Mesons at CDF. by :
Download or read book New Suppressed Decays of Bs Mesons at CDF. written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The observation of new suppressed B{sub s}° decays, B{sub s}° → J/[Psi]K*(892)° and B{sub s}° → J/[Psi]K{sub s}°, and the measurement of their branching ratios is presented. This measurement is based on an integrated luminosity of 5.9 fb−1 of CDF data collected by a dedicated di-muon trigger. A cut based optimization is carried out for the observation of B{sub s}° → J/[Psi]K*°, while a neural network is used for the B{sub s}° → J/[Psi]K{sub s}°. In addition to the observation of the new decay modes, the ratios of branching fractions to the reference B° decays are measured.
Download or read book B-physics written by Vyacheslav Krutelyov and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results and prospects for searches for rare B and D meson decays with final state dimuons, including B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -}, B{sub d}{sup 0} {yields} {mu}{sup +}{mu}{sup -}, and D{sup 0} {yields} {mu}{sup +}{mu}{sup -}. B0 Upper limits on the branching fractions are compared to previous CDF measurements, recent results from the B factories and theoretical expectations. We also report on new measurements of production and decay properties of the X(3872) particle, discovered in 2003 by the Belle Collaboration. New results on the measurement of the relative branching fraction for the Cabibbo suppressed decay B{sup +} {yields} J/{psi}{pi}{sup +} {Beta}(B{sup +} {yields} J/{psi}{pi}{sup +})/{Beta}(B{sup +} {yields} J/{psi}K{sup +}) are presented too. The presented results are based on the analyses of 70 to 220 pb{sup -1} of data collected by the CDF II detector in p{bar p} collisions at {radical}s = 1.96 GeV at Fermilab Tevatron.
Book Synopsis Search for Rare B-meson Decays at CDF. by :
Download or read book Search for Rare B-meson Decays at CDF. written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on the search for B°{sub s}→??−, B°{sub d}→?+?− decays and b→ s?+?− transitions in exclusive decays of B mesons using the CDF II detector at the Fermilab Tevatron Collider. Using 2 fb−1 of Run II data we find upper limits on the branching fractions?(B°{sub s}→?+?−)
Book Synopsis Observations of New Cabibbo Suppressed Decays of the D Meson by : Scott Alan Plaetzer
Download or read book Observations of New Cabibbo Suppressed Decays of the D Meson written by Scott Alan Plaetzer and published by . This book was released on 1985 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Relative Branching Fractions for D0 Meson Cabibbo Suppressed Hadronic Decays, from the CDF Secondary Vertex Trigger Sample at the Tevatron Collider by : Sandro De Cecco
Download or read book Measurement of Relative Branching Fractions for D0 Meson Cabibbo Suppressed Hadronic Decays, from the CDF Secondary Vertex Trigger Sample at the Tevatron Collider written by Sandro De Cecco and published by . This book was released on 2002 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rare B Decays from the CDF Experiment by :
Download or read book Rare B Decays from the CDF Experiment written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The high cross-section for the production of b quarks at the Tevatron hadron collider make it an ideal place to search for rare B meson species and very low branching fraction decay modes of the more common B mesons. This paper reports the recent discovery of the Bc meson by the CDF collaboration. It also discusses the observation of rare B meson final states involving [psi](2S) mesons and searches for ultra-rare decays such as B [yields] [mu][sup +][mu][sup -].
Book Synopsis Suppressed $B_s$ Decays at CDF. by :
Download or read book Suppressed $B_s$ Decays at CDF. written by and published by . This book was released on 2011 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: We review three recent results of the CDF collaboration on B{sub s}° suppressed decays: the first search for CP-violation in the B{sub s}° → [phi][phi] decay, where two CP-violating asymmetries expected to be zero in the Standard Model are measured, and the observation and the branching ratio measurements of B{sub s}° → J/[Psi] f0(980) and B{sub s}° → J/[Psi] K{sup (*)} decays.
Book Synopsis First Observation of the Bs-]K+K- Decay Mode, and Measurement of the B0 and Bs Mesons Decay-rates Into Two-body Charmless Final States at CDF. by : Diego Tonelli
Download or read book First Observation of the Bs-]K+K- Decay Mode, and Measurement of the B0 and Bs Mesons Decay-rates Into Two-body Charmless Final States at CDF. written by Diego Tonelli and published by . This book was released on 2006 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors searched for decays of the type B{sub (s)}{sup 0} {yields} h{sup +}h{prime}{sup -} (where h, h{prime} = K or {pi}) in a sample corresponding to 180 pb{sup -1} of p{bar p} collisions at {radical}s = 1.96 TeV, collected by the upgraded Collider Detector at the Fermilab Tevatron. A total signal of approximately 900 events was reconstructed, and the relative branching fractions ({Beta}) of each decay mode were determined with a likelihood fit.
Book Synopsis Search for Doubly Cabibbo Suppressed Decays of the Charged D Meson by : Jonathan Freeman Labs
Download or read book Search for Doubly Cabibbo Suppressed Decays of the Charged D Meson written by Jonathan Freeman Labs and published by . This book was released on 1992 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cabibbo-suppressed Decays of the D+ Meson by : Chul Gwon
Download or read book Cabibbo-suppressed Decays of the D+ Meson written by Chul Gwon and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: (N.b.: In the following abstract, non-ALA braces have been replaced with brackets.) Using 13.7 fb[-1] from the CLEO II and II. V detectors, we measure the branching ratios for two singly Cabibbo-suppressed decay modes: BR(D -> pi+ pi0) = (1.3 +/- 0.2)*10[-3] and BR(D+ -> Ks K+) = (5.2 +/- 0.6)*10[-3]. We also determine an upper limit on the branching ratio of the doubly Cabibbo-suppressed decay mode BR(D+ -> K+ pi0)
Book Synopsis Fully Reconstructed B-meson Decays Using J/[psi] And[psi](2S). by :
Download or read book Fully Reconstructed B-meson Decays Using J/[psi] And[psi](2S). written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper we present CDF B-meson branching ratio results involving color-suppressed[ital B][r-arrow][Psi][Kappa] decays, where[Psi]=[ital J]/[psi], [psi](2[ital S]) and[Kappa]=[Kappa], [Kappa][sup*]. Fully reconstructed decays of[ital B][r-arrow][ital J]/[psi][Kappa], [ital B][r-arrow][psi](2[ital S])[Kappa], [ital B][sup+][r-arrow][ital J]/[psi][pi][sup+] and[ital B][sub s][r-arrow][ital J]/[psi][phi] are used to extract branching ratios, vector-pseudoscalar ratios and polarization parameters.
Book Synopsis Optimierung Der Signalselektion Von Exklusiv Rekonstruierten B 0 - und B S -Mesonzerfällen Bei CDF II by : Christian Dörr
Download or read book Optimierung Der Signalselektion Von Exklusiv Rekonstruierten B 0 - und B S -Mesonzerfällen Bei CDF II written by Christian Dörr and published by . This book was released on 2006 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Doubly Cabibbo Suppressed Decays of the Charged D Meson by :
Download or read book Search for Doubly Cabibbo Suppressed Decays of the Charged D Meson written by and published by . This book was released on 1992 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The doubly Cabibbo suppressed decayed D → K+?{sup −}?+, D+ → K+?°and D+ → K*+?° are searched for in a 9.56 pb{sup −1} data sample of e+e{sup −} annihilation events collected near the?(3770) resonance with the Mark 3 detector at the SPEAR storage ring, at the Stanford Linear Accelerator Center. These rare weak decays are naively expected at a rate of tan4?{sub c} relative to corresponding Cabibbo allowed decays. In the context of presently accepted models of hadronic weak decays, however, they are anticipated to be enhanced, making their experimental detection feasible in the Mark 3 data set. The experimentally simplest decay channel D+ → K+?{sup −}?+ is searched for inclusively through conventional analysis techniques. A signal of approximately 2.5? significance is obtained. An independent analysis is performed to establish examples of this decay of D+ → K+?° and K*+?° by full reconstruction of D+D{sup −} events. Exploiting the two body kinematics of?(3770) → D{bar D}, this second approach obtains significantly smaller backgrounds than the inclusive study. Consistent with the inclusive results, three D+ → K+?{sup −}?+ candidate events are observed. No events are observed for either D+ → K+?° or K*+?°. The branching fraction for D+ → K+?{sup −}?+ is measured, and limits are established on the branching fractions for D+ → K+?° and K*+?°. These results are used to confront the theoretical predictions from models of the weak hadronic decays of charmed mesons.
Book Synopsis Recent Results on D Meson Decays from the MARK III. by :
Download or read book Recent Results on D Meson Decays from the MARK III. written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The MARK III Collaboration recently completed the analysis of a number of decay modes of charged and neutral D mesons produced in electron-positron collisions near the peak of the psi(3770) resonance at SLAC's SPEAR storage ring. The mesons were produced nearly at rest in pairs, either DD− or D° anti D°, at a center-of-mass energy below the threshold for DD production. The unique kinematics of the production allow us to isolate the charmed meson signal clearly and unambiguously. The data were collected with the MARK III Spectrometer, a large solid angle magnetic detector. Our data sample corresponds to an integrated luminosity of approximately 9.3 inverse picobarns. New results will be presented on the absolute branching ratios of D mesons into hadronic final states, branching ratios for three body decays via pseudoscalar-vector intermediate states, and branching ratios for Cabibbo allowed and Cabibbo suppressed decays. Inclusive and exclusive branching ratios for the semi-leptonic decays of D mesons will be presented, as well as the first measurement of the vector form factor in the decay D° .-->. K−e, nu, evidence for interference in D+ decays, and new information on the contributions of W exchange diagrams to D° decays.
Book Synopsis Doubly Cabibbo Suppressed Decays of the Charged D Meson by : James Stephen Wiener
Download or read book Doubly Cabibbo Suppressed Decays of the Charged D Meson written by James Stephen Wiener and published by . This book was released on 1994 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lepton-photon 01 - Proceedings Of The Xx International Symposium On Lepton And Photon Interactions At High Energies by : Fabio Bossi
Download or read book Lepton-photon 01 - Proceedings Of The Xx International Symposium On Lepton And Photon Interactions At High Energies written by Fabio Bossi and published by World Scientific. This book was released on 2002-08-08 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book covers topics that are of major interest to the high energy physics community, including the most recent results from flavour factories, dark matter and neutrino physics. In addition, it considers future high energy machines.
Book Synopsis Gauge Theories of the Strong, Weak, and Electromagnetic Interactions by : Chris Quigg
Download or read book Gauge Theories of the Strong, Weak, and Electromagnetic Interactions written by Chris Quigg and published by Princeton University Press. This book was released on 2013-09-22 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely revised and updated graduate-level textbook is an ideal introduction to gauge theories and their applications to high-energy particle physics, and takes an in-depth look at two new laws of nature--quantum chromodynamics and the electroweak theory. From quantum electrodynamics through unified theories of the interactions among leptons and quarks, Chris Quigg examines the logic and structure behind gauge theories and the experimental underpinnings of today's theories. Quigg emphasizes how we know what we know, and in the era of the Large Hadron Collider, his insightful survey of the standard model and the next great questions for particle physics makes for compelling reading. The brand-new edition shows how the electroweak theory developed in conversation with experiment. Featuring a wide-ranging treatment of electroweak symmetry breaking, the physics of the Higgs boson, and the importance of the 1-TeV scale, the book moves beyond established knowledge and investigates the path toward unified theories of strong, weak, and electromagnetic interactions. Explicit calculations and diverse exercises allow readers to derive the consequences of these theories. Extensive annotated bibliographies accompany each chapter, amplify points of conceptual or technical interest, introduce further applications, and lead readers to the research literature. Students and seasoned practitioners will profit from the text's current insights, and specialists wishing to understand gauge theories will find the book an ideal reference for self-study. Brand-new edition of a landmark text introducing gauge theories Consistent attention to how we know what we know Explicit calculations develop concepts and engage with experiment Interesting and diverse problems sharpen skills and ideas Extensive annotated bibliographies
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