Download or read book CP Violation at CDF written by and published by . This book was released on 2001 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: A major goal of experimental particle physics over the next decade is to measure the sides and angles of the Unitarity triangle redundantly, and as precisely as possible. Overconstraining the triangle will test the Cabbibo-Kobayashi-Maskawa model of quark mixing. The CDF collaboration, due to begin a second run in March 2001 with major upgrades to both the accelerator and the detector, will study the angle [beta] using B° decays, the angle [gamma] using B° and B{sub s}° decays, and a side of the triangle through the observation of B{sub s}°--{bar B}{sub s}° mixing. Projected sensitivities are driven mostly by previous measurements using data from the first run. One highlight of the Run I B physics program is a measurement of the CP violating parameter sin 2[beta] = 0.79{sub -0.44}{sup +0.41}, based on a tagged sample of 400 B° decays in the mode B0/{bar B}° → J/[psi]K{sub s}°. The technology of flavor tagging, used here as well as in numerous B°-{bar B}° mixing analyses in run I, is crucial and will be augmented in Run II with better particle identification capabilities. Exclusive all-hadronic final states will enter the data sample in Run II through a new displaced track trigger.

Download or read book Phenomena Related to CP Violation at CDF written by and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report recent CDF results on CP violation in B− → DK− modes, where D goes to Cabibbo suppressed (??, KK) or doubly cabibbo suppressed (K?−) modes, which are related to CKM angle gamma. We also describe direct CP violation measurements in charmless two-body decays of B{sub s}° → K? and?{sub b}° → pK, p? modes, which are unique to the CDF experiment. We also report on CP violation measurements in D° → h+h− modes.

Download or read book Results on CP Violation from CDF written by S. Giagu and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The CDF experiment at the Tevatron collider is collecting a large sample of fully hadronic decays of Bottom and Charm mesons. First CP Violation measurements have been performed using the initial data, achieving results which clearly state the CDF ability in extracting significant CKM information from p{bar p} collisions. The first results on direct CP asymmetries on Charm and Bottom decays and future plans from the CDF experiment are discussed in this paper.

Download or read book CP Violation and Suppressed B s Decays at CDF written by and published by . This book was released on 2011 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of heavy-quark decays continues to have wide interest as a possible avenue for the discovery of physics beyond the standard model. With data samples as large as 6 fb−1, the CDF collaboration is exploring new channels that will extend the reach of measurements in probing the CKM mechanism of CP violation. Several new measurements are presented.

Download or read book The Feasibility of Two Triggers for CP Violation Studies at CDF written by Tushar Rasik Shah and published by . This book was released on 1993 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CP Violation in Hadronic B Decays at CDF written by and published by . This book was released on 2013 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of CP Violation in Bs2 psi Phi Decays at CDF written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Joint Experimental Theoretical Seminar.

Download or read book Prospects of Measuring CP Violation in B Decays at CDF written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We summarize the prospects of measuring the CP asymmetry in B[sup 0][r-arrow] J/[psi]K[sup 0][sub s] and B[sup 0][r-arrow][pi][sup+][pi][sub -] with the CDF detector in Run II in 1999. We also explore the feasibility to determine sin 2[gamma] and discuss Run I results relevant to measurement of CP violation at CDF.

Download or read book CP Violation and B Mixing in CDF II written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In March 2001, the Tevatron at Fermilab will start a new run at (square root)s = 2.0 TeV, delivering an integrated luminosity of 2 fb−1 in the first two years and more than 15 fb−1 in the following years, before the start of LHC at CERN. CDF has been upgraded to cope with the new physics program. The authors present here the prospects for measuring B mixing and CP violation during the upcoming run.

Download or read book CP Violation in B s 0 J psi phi Decays written by Sabato Leo and published by Springer. This book was released on 2014-07-24 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis reports on the final measurement of the flavor-mixing phase in decays of strange-bottom mesons (B_s) into J/psi and phi mesons performed in high-energy proton-antiproton collisions recorded by the Collider Experiment at Fermilab. Interference occurs between direct decays and decays following virtual particle-antiparticle transitions (B_s-antiB_s). The phase difference between transition amplitudes (“mixing phase”) is observable and extremely sensitive to contributions from non-standard-model particles or interactions that may be very hard to detect otherwise – a fact that makes the precise measurement of the B_s mixing phase one of the most important goals of particle physics. The results presented include a precise determination of the mixing phase and a suite of other important supplementary results. All measurements are among the most precise available from a single experiment and provide significantly improved constraints on the phenomenology of new particles and interactions.

Download or read book CP Violation and Mixing of B Mesons at CDF written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We report recent studies of CP-violation and mixing in neutral B mesons from the CDF experiment at the Fermilab Tevatron Collider. Results of a direct measurement of the CP-violation parameter sin 2[beta] using B[sup 0][yields] J/[psi]K[sub S][sup 0] with multi flavor tagging algorithms, a search for B[sub s][sup 0] -[bar B][sub s][sup 0] mixing using semileptonic decays, and the updated precision measurements of the B[sup 0] -[bar B][sup 0] mixing parameter will be presented. The prospects for B physics with the upgraded CDF detector in the next Tevatron Collider run will also be discussed.

Download or read book CP Violation in the D0 Pi Pi Decay at CDF written by and published by . This book was released on 2010 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report a measurement of the CP violating asymmetry in D° →??− decays using approximately 215,000 decays reconstructed in about 5.94 fb−1 of CDF data. We use the strong D*+ → D°?+ decay ('D* tag') to identify the flavor of the charmed meson at production time and exploit CP-conserving strong c{bar c} pair-production in p{bar p} collisions. Higher statistic samples of Cabibbo-favored D° → K−?+ decays with and without D* tag are used to highly suppress systematic uncertainties due to detector effects. The result, A{sub CP}(D° →?+?−) = [0.22 ± 0.24 (stat.) ± 0.11 (syst.)]%, is the world's most precise measurement to date and it is fully consistent with no CP violation.

Download or read book CP Violation From Quarks to Leptons written by M. Giorgi and published by IOS Press. This book was released on 2006-07-25 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: For a long time after the discovery in 1964, by Christenson, Cronin, Fitch and Turlay, that the long-lived neutral kaon decays both into three and into two pions, which has since been taken as proof of CP violation, successive new and more precise experiments confirmed the original evidence and provided results compatible with a phenomenological description confining the CP violation to the mixing between neutral kaons and antikaons. However the Standard Model, with three generations of quarks, linking as it does CP violation to the presence of a single non trivial phase in the Cabibbo-Kobayashi-Maskawa quark mixing matrix, implies that if CP violation exists at all, then it is a general property of weak interactions, appearing in transitions were amplitudes involving all three quark families interfere with each other, producing effects with a magnitude related to that of the CKM coefficients. This fact has stimulated an impressive amount of theoretical work leading in many cases to precise predictions. This publication reviews the field, from both the theoretical and experimental point of view, while planning for the forthcoming experimentation at LHC and considering possible new facilities for kaon, B meson and neutrino physics. Abstracted in Inspec

Download or read book Mixing and CP Violation in the B0s Meson System at CDF written by Gian Piero Di Giovanni and published by . This book was released on 2008 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CP Violation in Particle Nuclear and Astrophysics written by Michael Beyer and published by Springer. This book was released on 2008-01-11 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: The exciting experiments of the BABAR and BELLE collaborations have now proven violation of CP symmetry in the neutral B system. This has renewed strong interest in the physics of CP violation. Novel experimental techniques and new highly intense neutron sources are now becoming available to further test the related time reversal symmetry. They will substantially lower the current limit on the neutron electric dipole moment and hence open up new tests of theoretical concepts beyond the Standard Model. These are strongly required to explain the decisive excess of matter versus antimatter in our Universe. There is a de?nite need to communicate these exciting developments to younger scientists, and therefore we organized a summer school in October 2000 on “CP Violation and Related Topics”, which was held in Prerow, a small Baltic Sea resort. These Lecture Notes were inspired by the vivid - terest of the participants, and I am grateful to the authors, who faced the unexpected and delivered all the material for an up-to-date introduction to this broad ?eld. It is a great pleasure for me to warmly thank the Co-organizers of the summer school, Henning Schr ̈oder, Thomas Mannel, Klaus R. Schubert and my colleague Roland Waldi. Also I would like to express my sincere thanks to the Volkswagen-Stiftung for their ?nancial support of this inspiring summer school.

Download or read book Measurement of CP Violation in B s 0 to J psi phi Decays Using the Full CDF Data Set written by and published by . This book was released on 2013 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on the final measurement of the CP-violating $B_s^0$ mixing phase $\beta_s^{J/[psi][phi]}$ in √s = 1.96 TeV proton-antiproton collisions collected with the Collider Detector at the Fermilab Tevatron collider. Using a sample corresponding to 9.6 fb-1 of integrated luminosity, we fit the decay-time evolution of $B_s^0$ → J/[psi] (→ [mu]+ [mu]-) [phi] (→ K+ K−) decays in which the b-quark content at production and the CP parity of the final state are identified. The interference of decays with and without mixing renders the $B_s^0$ mixing phase observable. The phase is determined to be -0.06

Download or read book Search for CP Violation in D 0 to H h Decays at CDF written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: I report on a measurement of \CP-violating asymmetries ($A_{\Gamma}$) between effective lifetimes of $D^0$ or $\bar{D}^0$ in fully reconstructed $D^0\to K^+ K^-$ and $D^0\to \pi^+\pi^-$ decays collected in $p\bar{p}$ collisions by the Collider Detector at Fermilab experiment. The full CDF data set corresponding to $9.7$ fb$^{-1}$ of integrated luminosity is used. The flavor of the charm meson at production is determined by exploiting the strong-interaction decay $D^{*+} \to D^0 \pi^+$, while the contamination from mesons originated in $b$-hadron decays is evaluated and subtracted from the sample. Signal yields as functions of the observed decay-time distributions are extracted from maximum likelihood fits and used to measure the asymmetries. The results, $A_\Gamma (K^+K^- ) = \bigl( -1.9 \pm 1.5 \mathrm{(stat)} \pm 0.4 \mathrm{(syst)} \bigr)\times10^{-3}$ and $A_\Gamma (\pi^+\pi^- )= \bigl( -0.1 \pm 1.8 \mathrm{(stat)} \pm 0.3 \mathrm{(syst)} \bigr)\times10^{-3}$, and their combination, $A_\Gamma = \bigl( -1.2 \pm 1.2\bigr)\times10^{-3}$, are consistent with the SM predictions and other experimental determinations.