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Measurement Of Orbitally Excited D Mesons At Cdf Ii
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Book Synopsis Measurement of Orbitally Excited D-mesons at CDF II. by : Igor V. Gorelov
Download or read book Measurement of Orbitally Excited D-mesons at CDF II. written by Igor V. Gorelov and published by . This book was released on 2004 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of the first measurement of {sup 3}P orbitally excited neutral D-meson states, D*{sub 2}{sup 0} and D{sub 1}{sup 0}, produced in hadron collisions at the Tevatron are presented. Using data from the displaced track trigger, CDF II collects a large sample of these states in decay modes D*{sup +} {pi}{sup -}, D{sup +} {pi}{sup -}. Masses and widths of both states have been measured with precision better than or comparable to that of the world average.
Book Synopsis Studies of Orbitally Excited D^**_(s) and B^** Mesons at Cdf and by : Jennifer Pursley
Download or read book Studies of Orbitally Excited D^**_(s) and B^** Mesons at Cdf and written by Jennifer Pursley and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a large data sample of p{bar p} collisions at {radical}s = 1.96 TeV recorded by the CDF and D0 detectors operating at Fermilab Tevatron, the orbitally excited B mesons B{sub 1} and B*{sub 2} are observed directly as two separate states in fully reconstructed decays to B{sup (*)}{pi}. The masses and the mass differences between the states are presented. In the charm system, the orbitally excited D mesons D{sub 1} and D*{sub 2} are observed in fully reconstructed decays to D{sup (*)}{pi}. Measurements of the product branching rates of semileptonic decays B {yields} {bar D}**{mu}{sup +}{nu}{sub {mu}}X and their ratio are presented. They also present the observation of the semileptonic decays B{sub s} {yields} {mu}{nu}D**{sub s} where the excited D**{sub s} states are reconstructed in the mode D**{sub s} {yields} D*K{sub S}{sup 0}.
Book Synopsis Spectroscopy of Orbitally Excited $B_{s}$ Mesons with the CDF II Detector by :
Download or read book Spectroscopy of Orbitally Excited $B_{s}$ Mesons with the CDF II Detector written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Orbitally Excited B Mesons with the CDF II Detector by :
Download or read book Search for Orbitally Excited B Mesons with the CDF II Detector written by and published by . This book was released on 2009 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Orbitally Excited B Mesons with the CDF II Detector by : Andreas Gessler
Download or read book Search for Orbitally Excited B Mesons with the CDF II Detector written by Andreas Gessler and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Latest Results on Orbitally Excited Strange Bottom Mesons with the CDF II Detector by : Igor V. Gorelov
Download or read book Latest Results on Orbitally Excited Strange Bottom Mesons with the CDF II Detector written by Igor V. Gorelov and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present the latest results on the spectroscopy of orbitally excited strange bottom mesons from {approx} 1 fb{sup -1} of CDF data. The measurements are performed with fully reconstructed B decays collected by the CDF II detector at {radical}s = 1.96 TeV in both the di-muon and the fully hadronic trigger paths.
Book Synopsis Spectroscopy of Orbitally Excited Bs Mesons with the CDF II Detector by : Martin Heck
Download or read book Spectroscopy of Orbitally Excited Bs Mesons with the CDF II Detector written by Martin Heck and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Orbitally Excited $B_{(s)}$ Mesons and Evidence for a New $B\pi$ Resonance with the CDF II Detector by :
Download or read book Study of Orbitally Excited $B_{(s)}$ Mesons and Evidence for a New $B\pi$ Resonance with the CDF II Detector written by and published by . This book was released on 2014 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents an analysis of excited states of B0, B+ and B0 s mesons, decaying to B mesons while emitting a pion or kaon. They are reconstructed from their decay products and a selection is performed to discard wrongly reconstructed B(s) mesons with the multivariate analysis software NeuroBayes, as described in chapter 5. In the training process, the sPlot method and measured and simulated data are used. Chapter 6 describes how the properties of excited B(s) are determined by an unbinned maximum likelihood t to their mass spectra. The systematic uncertainties determined in this analysis are described in chapter 7. The results of this thesis are presented in chapter 8 and a conclusion is given in chapter 9. The results shown in this thesis have been published before in [1].
Book Synopsis Study of Orbitally Excited B(s) Mesons and Evidence for a New B Π Resonance with the CDF II Detector by : Manuel Kambeitz
Download or read book Study of Orbitally Excited B(s) Mesons and Evidence for a New B Π Resonance with the CDF II Detector written by Manuel Kambeitz and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Resonance Parameters of Orbitally Excited Narrow B0̂ Mesons by :
Download or read book Measurement of Resonance Parameters of Orbitally Excited Narrow B0̂ Mesons written by and published by . This book was released on 2008 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report a measurement of resonance parameters of the orbitally excited (L = 1) narrow B° mesons in decays to B{sup (*)+}?− using 1.7 fb−1 of data collected by the CDF II detector at the Fermilab Tevatron. The mass and width of the B*2° state are measured to be m(B*2°) = 5740.2{sub -1.8}{sup +1.7}(stat.){sub -0.8}{sup +0.9}(syst.) MeV/c2 and?(B*2°) = 22.7{sub -3.2}{sup +3.8}(stat.){sub -10.2}{sup +3.2}(syst.) MeV/c2. The mass difference between the B*2° and B1° states is measured to be 14.9{sub -2.5}{sup +2.2}(stat.){sub -1.4}{sup +1.2}(syst.) MeV/c2, resulting in a B1° mass of 5725.3{sub -2.2}{sup +1.6}(stat.){sub -1.5}{sup +1.4}(syst.) MeV/c2. This is currently the most precise measurement of the masses of these states and the first measurement of the B*2° width.
Book Synopsis Study of Orbitally Excited B(s) Mesons and Evidence for a New B Pi Resonance with the CDF II Detector by : Manuel Kambeitz
Download or read book Study of Orbitally Excited B(s) Mesons and Evidence for a New B Pi Resonance with the CDF II Detector written by Manuel Kambeitz and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Mass and Width of the Excited Charmed Meson States D0(1) and D*0(2) at CDF. by :
Download or read book Measurement of Mass and Width of the Excited Charmed Meson States D0(1) and D*0(2) at CDF. written by and published by . This book was released on 2005 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes a measurement of the mass and of the width of two neutral narrow resonances D1° and D*2°, both composed of a charm quark and an up antiquark. The difference with respect to the well-known resonance D°, also neutral and with the same quark composition, is that the two quarks have an orbital momentum 1, which increases their binding energy. Therefore the mass is larger than that of the D°. Since the relative orientation of the spin is the same, in the limit of very large charm mass, the masses of these resonances should be the same; their small difference is predicted by theory and therefore important to measurement to distinguish the different models. These states have been observed in their decay into a kaon and three pions; two of these particles are required to originate from a displaced vertex with respect to the primary interaction vertex, to account for the longer lifetime of the charmed mesons. The resonances parameters have been extracted using a fitting procedure accounting for the expected resonance shape, including effects from detector resolution and background, providing a new best single measurement of the D1° and D*2° masses and a competitive measurement of their widths.
Book Synopsis Observations and Measurements of Orbitally Excited L by :
Download or read book Observations and Measurements of Orbitally Excited L written by and published by . This book was released on 2008 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes investigations of the first set of orbitally excited (L = 1) states for both the Bd0 and Bs0 meson systems (B**d and B**s). The data sample corresponds to 1.35 fb-1 of integrated luminosity, collected in 2002-2006 by the D0 detector, during the Run IIa operation of the Tevatron p$\bar{p}$ colliding beam accelerator. The B**d states are fully reconstructed in decays to B(*)+ [pi]-, with B(*)+ → [gamma] J/[Psi]K+, J/[Psi] → [mu]+[mu]-, yielding 662 ± 91 events, and providing the first strong evidence for the resolution of two narrow resonances, B1 and B*2. The masses are extracted from a binned [Chi]2 fit to the invariant mass distribution, giving M(B1) = 5720.7 ± 2.4(stat.) ± 1.3(syst.) ± 0.5 (PDG) MeV/c2 and M(B*2) = 5746.9 ± 2.4(stat.) ± 1.0(syst.) ± 0.5(PDG) MeV/c2. The production rate of narrow B**d → B[pi] resonances relative to the B+ meson is determined to be [13.9 ± 1.9(stat.) ± 3.2(syst.)]%. The same B+ sample is also used to reconstruct the analogous states in the Bs0 system, in decays B**s → B(*)+ K-. A single resonance in the invariant mass distribution is found with a statistical significance of 5[sigma], interpreted as the B*s2 state. The mass is determined to be M(B*s2) = 5839.6 ± 1.1(stat.) ± 0.4(syst.) ± 0.5(PDG) MeV/c 2, and the production rate of B*s2 → BK resonances is measured to be a fraction (2.14 ± 0.43 ± 0.24)% of the corresponding rate for B+ mesons. Alternative fitting hypotheses give inconclusive evidence for the presence of the lighter Bs1 meson.
Download or read book High Energy Physics written by and published by World Scientific. This book was released on 1981 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particles and Nuclei by : Peter D. Barnes
Download or read book Particles and Nuclei written by Peter D. Barnes and published by AIP Conference Proceedings / H. This book was released on 2006-10-04 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the proceedings of the 17th International Conference on Particles and Nuclei, Santa Fe, New Mexico, USA which was concerned with new developments in experimental and theoretical particle physics, nuclear physics, and cosmology, and the intersections of these fields which will help us understand our Universe more completely. The participants reported on new developments in instrumentation, including large-scale facilities, such as accelerators, that will be essential for future work.
Book Synopsis Proceedings Of The 28th International Conference On High Energy Physics (In 2 Volumes) by : Zygmunt Ajduk
Download or read book Proceedings Of The 28th International Conference On High Energy Physics (In 2 Volumes) written by Zygmunt Ajduk and published by World Scientific. This book was released on 1997-04-11 with total page 1878 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 28th conference from the Rochester series was the major high energy physics conference in 1996. Volume one contains short reports on new theoretical and experimental results. Volume two consists of the review talks presented in the plenary sessions.
Book Synopsis Lepton-photon Interactions, Lp'97 - Proceedings Of The Xviii International Symposium by : Albert De Roeck
Download or read book Lepton-photon Interactions, Lp'97 - Proceedings Of The Xviii International Symposium written by Albert De Roeck and published by World Scientific. This book was released on 1998-07-22 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the XVIII International Symposium on Lepton-Photon Interactions. It contains 30 review papers on the latest developments by experts in the field. The subjects cover the structure of photons and hadrons, progress in QCD and diffraction, heavy quark (c, b, t) physics, electroweak precision measurements and tests, CP violation, neutrino physics, searches for new particles and phenomena, cosmology, progress in theory and physics at future colliders.
