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Measurements Of B Rare Decays At The Tevatron
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Book Synopsis Measurements of B Rare Decays at the Tevatron by :
Download or read book Measurements of B Rare Decays at the Tevatron written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary of recent results on B rare decays from the CDF and D0 experiments operating in Run II of the Fermilab Tevatron is given; analyzed decay modes are B{sub d, s} → hh, B{sub d, s} →??−, and B →?+?− h. Data samples are relative to 1 fb−1 or more integrated luminosity of p{bar p} collisions at √s = 1.96 TeV. All reported results are in agreement with Standard Model predictions and consistent with B-Factories analyzes.
Book Synopsis Measurements of Rare B Decays at Tevatron by :
Download or read book Measurements of Rare B Decays at Tevatron written by and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Both CDF and D0 experiments have been searching for evidence of physics beyond the standard model (SM) using the Tevatron p{bar p} collider at Fermilab. We report on recent searches in the B flavor sector, especially decays via flavor changing neutral current processes (FCNC), B{sub (s)}° → e?− and B{sub s}° →?+?−, at the Tevatron.
Book Synopsis B Physics Results from the Tevatron by :
Download or read book B Physics Results from the Tevatron written by and published by . This book was released on 2009 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: With data samples of up to 2 fb−1 of p[bar p] interactions at [square root]s = 1960 GeV, the CDF and D0 experiments are beginning to make precision measurements of the lifetime of bottom hadrons not produced in ee− colliders operating at the [Upsilon](4S) and set limits on the branching ratios of many decay modes that are predicted to be rare or forbidden under the standard model. Both sets of measurements are providing limits on physics beyond the standard model.
Book Synopsis Rare Decays of B Mesons and Baryons at the Tevatron and the LHC. by :
Download or read book Rare Decays of B Mesons and Baryons at the Tevatron and the LHC. written by and published by . This book was released on 2008 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experimental study of rare decays of hadrons containing the b quark has been a fertile ground for some time, and keeps being one of the most interesting subjects in high energy physics. It has improved our understanding of hadronic processes, and allows investigating various aspects of the Standard Model and searching for hints of physics beyond the Standard Model. Examples are the comparison of branching fractions of charmless modes with predictions of models, the constraints on CKM angles (B0 → [pi]+[pi]-, B → DK, with D in suppressed modes), the observation of purely leptonic modes (B± → [tau]±v), the recently established difference in ACP between B0 → K+[pi]- and B± → K±[pi]0, suspected to be a hint new physics. All of them came from a long and successful experimental activity with e+e- collisions at the Y(4S) resonance. With hadronic colliders now coming into play, the study of rare decays is reaching new heights. Given the high cross section for production of all kinds of B hadrons, the record luminosities now provided by the Tevatron collider, and the LHC program in view for the next years, there is the potential for a rich program of interesting new measurements, including even rarer modes as the Bs0 → [mu]+[mu]-, strongly suppressed in the standard model but very sensitive to many NP scenarios. The complexity of the hadronic collision environment, however, requires detectors with high precision and high quality tracking, and a trigger system capable of complex event selections at high rates. The CDF experiment, thanks to a fast trigger on impact parameter, has been able to reconstruct many rare B decays, including previously unobserved modes Bs0 → K+K- and Bs0 → K-[pi]+, the latter being particularly interesting for its relationship with the puzzling difference in CP asymmetry between neutral and charged modes. In this thesis we go beyond B mesons, and present the first measurements of Branching fractions and CP asymmetries in charmless b-baryon modes. We study two-body [Lambda]b0 decays into final states with a proton and a charged pion or kaon. Their branching fractions can be significantly affected by New Physics contributions; under supersymmetric models with R-parity violation, they can be increased by two orders of magnitude. Their CP-violating asymmetries are also interesting to measure in search for possible further anomalies: then may reach significant size O(30%) in the Standard Model, and are also sensitive to possible new physics sources.
Download or read book Rare B Decays at the Tevatron written by and published by . This book was released on 2011 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studying flavor changing neutral current transitions provides important information that helps searches for physics beyond the standard model. In this paper we report on recent measurements of these transitions using data collected by the CDF and D0 experiments at the Tevatron p{bar p} collider, including world-leading limits on the branching fraction of the decay B{sub (s)}° →??−, a forward-backward asymmetry measurement in B° → K*°?+?− and B+ → K+?+?− decays which is consistent and competitive with best B-factories results, and the first observation of the decay B{sub s}° →??+?−.
Book Synopsis Search for Non-standard Model Physics in Rare Decays at the Tevatron by :
Download or read book Search for Non-standard Model Physics in Rare Decays at the Tevatron written by and published by . This book was released on 2011 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this proceeding we report the most recent results from the CDF and D0 collaborations on the rare decays of b-mesons. The presented results show a new D0 limit for?(B{sub s}° →??−) that represent the best single measurement on this mode so far, an update of the?(B{sub s}° →??) with, for the first time, an angular analysis on the final state, a new measurement of the?(B° → K*°?+?−) and?(B+ → K+?+?−) with an interesting measurement on the forward-backward asymmetry for those channels and the first observation of the?(B{sub s}° →??+?−).
Book Synopsis Search for Rare Decays of the B(s) Meson at the Tevatron by : Ralf Patrick Bernhard
Download or read book Search for Rare Decays of the B(s) Meson at the Tevatron written by Ralf Patrick Bernhard and published by . This book was released on 2006 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis $B$ and $D$ Physics from the Tevatron by :
Download or read book $B$ and $D$ Physics from the Tevatron written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The CDF and D0 experiments at the Tevatron pp collider established that extensive and detailed exploration of the b-quark dynamics is possible in hadron collisions, with results competitive and supplementary to B-factories. In this paper we review the current state of Tevatron's heavy flavor measurements considering two main categories: searches for non standard model physics (results on rare decays and CP-violation) and determinations of standard model parameters (annihilation in B 2!hh− decays and? angle measurement through B 2!DK modes).
Book Synopsis B, Lambda[sub B] and Charm Results from the Tevatron by :
Download or read book B, Lambda[sub B] and Charm Results from the Tevatron written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent results on B[sub d], B[sub u][sup[+-]], B[sub s], [Lambda][sub b] and Charm hadrons are reported from[approx] 75 pb[sup -1] and[approx] 40 pb[sup -1] of data accumulated at the upgraded CDF and D0 experiments at the Fermilab Tevatron[bar p]-p collider, during Run-II. These include lifetime and mass measurements of B and Charm hadrons, searches for rare decays in charm and B hadrons and CP-violation in Charm decays. Results relevant to CP-violation in B-decays are also reported.
Book Synopsis Privilegia für die See-Leute im Hertzogthum Schleßwig, welche sich ... enrolliren lassen by :
Download or read book Privilegia für die See-Leute im Hertzogthum Schleßwig, welche sich ... enrolliren lassen written by and published by . This book was released on 1739 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fascicolo speciale ... written by and published by . This book was released on 1925 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rare B Decays, Mixing and Cp Violation at the Fermilab Tevatron by :
Download or read book Rare B Decays, Mixing and Cp Violation at the Fermilab Tevatron written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Over two decades since its discovery at Fermilab in 1977, the b quark has become an important laboratory for the exploration of the Standard Model as well as a potential window beyond it. Its kinematic properties, its large mass and long lifetime, and its large production cross section in hadron collisions, make it an excellent subject of study at the Tevatron {bar p}p collider. In this article, we will review recent results from CDF and D0 in two categories of tests of the Standard Model: the search for rare b decays, and the measurement of asymmetry parameters related to B° meson mixing and CP violation. The detectors have been described elsewhere. The data for the results presented here are from the 1992-96 collider run, representing at each experiment, approximately 100 pb−1 of integrated luminosity at (square root)s = 1.8 TeV.
Book Synopsis CP Violation in B Decays at the Tevatron by :
Download or read book CP Violation in B Decays at the Tevatron written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 1992 to 1996, the CDF and D0 detectors each collected data samples exceeding 100 pb−1 of p{bar p} collisions at √s = 1.8 TeV at the Fermilab Tevatron. These data sets led to a large number of precision measurements of the properties of B hadrons including lifetimes, masses, neutral B meson flavor oscillations, and relative branching fractions, and to the discovery of the B0 meson. Perhaps the most exciting result was the first look at the CP violation parameter sin ({vert_bar}2[beta]){vert_bar} using the world's largest sample of fully reconstructed B°/{bar B}° → J/[psi]K{sub s}° decays. A summary of this result is presented here. In the year 2000, the Tevatron will recommence p{bar p} collisions with an over order of magnitude expected increased in integrated luminosity (1 fb−1 per year). The CDF and D0 detectors will have undergone substantial upgrades, particularly in the tracking detectors and the triggers. With these enhancements, the Tevatron B physics program includes precision measurements of sin(2[beta]) and B{sub s}° flavor oscillations, as well as studies of rare B decays that are sensitive to new physics. The studies of B{sub s}° mesons will be particularly interesting as this physics will be unique to the Tevatron during the first half of the next decade.
Book Synopsis CP Violation, Mixing and Rare Decays at the Tevatron Now and in Run II. by :
Download or read book CP Violation, Mixing and Rare Decays at the Tevatron Now and in Run II. written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We review the status of current B mixing and CP violation measurements from the Fermilab Tevatron. With the existing data sample, the CDF collaboration has made competitive measurements of B{sub d}° mixing; set limits on B{sub s}° mixing and has begun a direct search of CP violation in the B system through the decay B°/{anti B}°→J/[psi]K{sub S}°. The prospects for future b measurements at the Tevatron, including CP violation, B{sub s}° mixing and rare decay searches are discussed.
Book Synopsis Rare Decays at the Tevatron by : S. M. Farrington
Download or read book Rare Decays at the Tevatron written by S. M. Farrington and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The confidence level limits of the CDF and D0 searches for the B{sub s}{sup 0}, B{sub d}{sup 0} {yields} {mu}{sup +}{mu}{sup -} and B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -}{phi} rare decays are presented.
Download or read book B Physics at the Tevatron written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: After a five year upgrade period, the Fermilab experiments CDF and D0 are taking high quality data in Run II of the Tevatron Collider. We report on the start-up of both detectors and present a selection of first B physics results from the Tevatron. We also compare different B hadron producers such as the [Upsilon](4S) with the hadron collider environment and discuss general features of B physics at a hadron collider.
Book Synopsis Search for Rare Leptonic B Decays at the Tevatron by : Ralf Patrick Bernhard
Download or read book Search for Rare Leptonic B Decays at the Tevatron written by Ralf Patrick Bernhard and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of a search for the Flavor-Changing Neutral Current decay B{sub s, d}{sup 0} {yields} {mu}{sup +}{mu}{sup -} using p{bar p} collision data at {radical}s = 1.96 TeV collected at Fermilab Tevatron collider by the CDF and D0 detectors are presented. CDF reports upper limits on {Beta}(B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -}) {le} 7.5 {center_dot} 10{sup -7} and {Beta}(B{sub d}{sup 0} {yields} {mu}{sup +}{mu}{sup -}) {le} 1.9 {center_dot} 10{sup -7} at the 95% C.L. using 171 pb{sup -1}. The D0 Collaboration used 240 pb{sup -1} to set an even more stringent limit on the branching ratio for B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -} of 5.0 {center_dot} 10{sup -7} at the 95% C.L.
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