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A Search For Time Dependent B0s Anti B0s Oscillations Using Exclusively Reconstructed D S Mesons
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Book Synopsis A SEARCH FOR TIME DEPENDENT B0(S) - ANTI-B0(S) OSCILLATIONS USING EXCLUSIVELY RECONSTRUCTED D+-(S) MESONS. by :
Download or read book A SEARCH FOR TIME DEPENDENT B0(S) - ANTI-B0(S) OSCILLATIONS USING EXCLUSIVELY RECONSTRUCTED D+-(S) MESONS. written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A search for B[sub s][sup 0]-[bar B][sub s][sup 0] oscillations is performed using a sample of 400,000 hadronic Z[sup 0] decays collected by the SLD experiment. The B[sub s][sup 0] candidates are reconstructed in the B[sub s][sup 0][yields] D[sub s][sup -] X channel with D[sub s][sup -][yields][phi][pi][sup -], K*[sup 0] K[sup -]. The B[sub s][sup 0] production flavor is determined using the large forward-backward asymmetry of polarized Z[sup 0][yields] b[bar b] decays and charge information in the hemisphere opposite that of the B[sub s][sup 0] candidate. The decay flavor is tagged by the charge of the D[sub s][sup[+-]]. From a sample of 361 candidates with an average B[sub s][sup 0] purity of 40%, we exclude the following values of the oscillation frequency:[Delta]m[sub s]
Book Synopsis A Search for Time Dependent B[sub S][sup 0]-[bar B][sub S][sup 0] Oscillations Using Exclusively Reconstructed D[sub S][sup+] AT SLD. by :
Download or read book A Search for Time Dependent B[sub S][sup 0]-[bar B][sub S][sup 0] Oscillations Using Exclusively Reconstructed D[sub S][sup+] AT SLD. written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors set a preliminary 95% C.L. exclusion on the oscillation frequency of B[sub s][sup 0] -[bar B][sub s][sup 0] mixing using a sample of 400,000 hadronic Z[sup 0] decays collected by the SLD experiment at the SLC during the 1996-98 run. In this analysis, B[sub s][sup 0] mesons are partially reconstructed by combining a fully reconstructed D[sub s] with other B[sub s][sup 0] decay products. The D[sub s] decays are reconstructed via the[phi][pi] and K*K channels. The b-hadron flavor at production is determined by exploiting the large forward-backward asymmetry of polarized Z[sup 0][yields] b[bar b] decays as well as information from the hemisphere opposite to the reconstructed B decay. The flavor of the B[sub s][sup 0] at the decay vertex is determined by the charge of the D[sub s]. A total of 361 candidates passed the final event selection cuts. This analysis excludes the following values of the B[sub s][sup 0]-[bar B][sub s][sup 0] mixing oscillation frequency:[Delta]m[sub s]
Book Synopsis A Search for Time Dependent B{sub S}°-{bar B}{sub S}° Oscillations Using Exclusively Reconstructed D{sub S} AT SLD. by :
Download or read book A Search for Time Dependent B{sub S}°-{bar B}{sub S}° Oscillations Using Exclusively Reconstructed D{sub S} AT SLD. written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors set a preliminary 95% C.L. exclusion on the oscillation frequency of B{sub s}° - {bar B}{sub s}° mixing using a sample of 400,000 hadronic Z° decays collected by the SLD experiment at the SLC during the 1996-98 run. In this analysis, B{sub s}° mesons are partially reconstructed by combining a fully reconstructed D{sub s} with other B{sub s}° decay products. The D{sub s} decays are reconstructed via the [phi][pi] and K*K channels. The b-hadron flavor at production is determined by exploiting the large forward-backward asymmetry of polarized Z° 2!b{bar b} decays as well as information from the hemisphere opposite to the reconstructed B decay. The flavor of the B{sub s}° at the decay vertex is determined by the charge of the D{sub s}. A total of 361 candidates passed the final event selection cuts. This analysis excludes the following values of the B{sub s}°-{bar B}{sub s}° mixing oscillation frequency: [Delta]m{sub s}
Book Synopsis Time Dependent B{sub S}° - {bar B}{sub S}° Oscillations Using Exclusively Reconstructed D{sub S} Decays at SLD. by :
Download or read book Time Dependent B{sub S}° - {bar B}{sub S}° Oscillations Using Exclusively Reconstructed D{sub S} Decays at SLD. written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We set a preliminary 95% C.L. exclusion on the oscillation frequency of B{sub s}° - {bar B}{sub s}° mixing using a sample of 400,000 hadronic Z° decays collected by the SLD experiment at the SLC during the 1996-98 run. In this analysis, B{sub s}° mesons are partially reconstructed by combining a fully reconstructed D{sub s} with other B{sub s}° decay tracks. The D{sub s} decays are reconstructed via the [phi][pi] and K*K channels. The b-hadron flavor at production is determined by exploiting the large forward-backward asymmetry of polarized Z° 2!b{bar b} decays as well as information from the hemisphere opposite to the reconstructed B decay. The flavor of the B{sub s}° at the decay vertex is determined by the charge of the D{sub s}. A total of 361 candidates passed the final event selection cuts. This analysis excludes the following values of the B{sub s}°-{bar B}{sub s}° mixing oscillation frequency: [Delta]m{sub s}
Book Synopsis Time Dependent B[sub S][sup 0] -[bar B][sub S][sup 0] Oscillations Using Exclusively Reconstructed D[sub S][sup+] Decays at SLD. by :
Download or read book Time Dependent B[sub S][sup 0] -[bar B][sub S][sup 0] Oscillations Using Exclusively Reconstructed D[sub S][sup+] Decays at SLD. written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We set a preliminary 95% C.L. exclusion on the oscillation frequency of B[sub s][sup 0] -[bar B][sub s][sup 0] mixing using a sample of 400,000 hadronic Z[sup 0] decays collected by the SLD experiment at the SLC during the 1996-98 run. In this analysis, B[sub s][sup 0] mesons are partially reconstructed by combining a fully reconstructed D[sub s] with other B[sub s][sup 0] decay tracks. The D[sub s] decays are reconstructed via the[phi][pi] and K*K channels. The b-hadron flavor at production is determined by exploiting the large forward-backward asymmetry of polarized Z[sup 0][yields] b[bar b] decays as well as information from the hemisphere opposite to the reconstructed B decay. The flavor of the B[sub s][sup 0] at the decay vertex is determined by the charge of the D[sub s]. A total of 361 candidates passed the final event selection cuts. This analysis excludes the following values of the B[sub s][sup 0]-[bar B][sub s][sup 0] mixing oscillation frequency:[Delta]m[sub s]
Book Synopsis Search for Time-Dependent B0s - B0s-bar Oscillations Using a Vertex Charge Dipole Technique by :
Download or read book Search for Time-Dependent B0s - B0s-bar Oscillations Using a Vertex Charge Dipole Technique 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 a search for B[sub s][sup 0] -[bar B][sub s][sup 0] oscillations using a sample of 400,000 hadronic Z[sup 0] decays collected by the SLD experiment. The analysis takes advantage of the electron beam polarization as well as information from the hemisphere opposite that of the reconstructed B decay to tag the B production flavor. The excellent resolution provided by the pixel CCD vertex detector is exploited to cleanly reconstruct both B and cascade D decay vertices, and tag the B decay flavor from the charge difference between them. We exclude the following values of the B[sub s][sup 0] -[bar B][sub s][sup 0] oscillation frequency:[Delta]m[sub s]
Book Synopsis Time Dependent B0s - Anti-B0s Mixing Using Inclusive and Semileptonic B Decays at SLD. by :
Download or read book Time Dependent B0s - Anti-B0s Mixing Using Inclusive and Semileptonic B Decays at SLD. written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We set a preliminary 95% C.L. exclusion on the oscillation frequency of B{sub s}° - {bar B}{sub s}° mixing using a sample of 400,000 hadronic Z° decays collected by the SLD experiment at the SLC between 1996 and 1998. The analyses determine the b-hadron flavor at production by exploiting the large forward-backward asymmetry of polarized Z° 2!b{bar b} decays as well as information from the hemisphere opposite that of the reconstructed B decay. In one analysis, B decay vertices are reconstructed inclusively with a topological technique, and separation between B{sub s}° and {bar B}{sub s}° decays exploits the B{sub s}° 2!D{sub s}− cascade charge structure. In the other analysis, semileptonic decays are selected and the B decay point is reconstructed by intersecting a lepton track with the trajectory of a topologically reconstructed D meson. The two analyses are combined with a third analysis described elsewhere to exclude the following values of the B{sub s}° - {bar B}{sub s}° mixing oscillation frequency: [Delta]m{sub s}
Book Synopsis A Study of B[sup 0][bar B][sup 0] Oscillations with Fully Reconstructed B Mesons with the BaBar Detector by :
Download or read book A Study of B[sup 0][bar B][sup 0] Oscillations with Fully Reconstructed B Mesons with the BaBar Detector written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Time-dependent B[sup 0][bar B][sup 0] flavor oscillations are studied in e[sup+]e[sup -] annihilation data collected with the BABAR detector at center-of-mass energies near the[Upsilon](4S) resonance. We report a preliminary result for the time-dependent B[sup 0][bar B][sup 0] oscillation frequency, [Delta]m[sub d]= 0.512[+-] 0.017[+-] 0.022[Dirac-h] ps[sup -1].
Book Synopsis A Study of Neutral B Meson Time Evolution Using Exclusively Reconstructed Semileptonic Decays by :
Download or read book A Study of Neutral B Meson Time Evolution Using Exclusively Reconstructed Semileptonic Decays written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Standard Model of particle physics describes the fundamental building blocks of the Universe and their basic interactions. The model naturally describes the time evolution of the basic particles, of which lifetime and mixing are two examples. The neutral B meson, consisting of a bottom quark and an oppositely charged down quark, enjoys a lifetime of about 1.5 ps and the special property of mixing with its antiparticle partner, the [bar B][sup 0]. That is, due to second order weak interactions, the B[sup 0] meson can change into a [bar B][sup 0] meson and back again as it evolves through time. The details of this behavior offer an opportunity to closely examine the Standard Model. In this dissertation, I report on a measurement of the lifetime and mixing frequency of the neutral B meson. Using the semileptonic decay channel B[sup 0] [yields] D*[sup -][ell][sup +][bar [nu]][sub [ell]], we select more than 68,000 signal and background candidates from about 23 million B[bar B] pairs collected in 1999-2000 with the BABAR detector located at the Stanford Linear Accelerator Center. The other B in the event is reconstructed inclusively. By constructing a master probability density function that describes the distribution of decay time differences in the sample, we use a maximum likelihood technique to simultaneously extract the B[sup 0] lifetime and mixing parameters with precision comparable to the year 2000 world average. The results are [tau][sub B[sup 0]] = (1.523[sub -0.023][sup +0.024] [+-] 0.022) ps and [Delta]m[sub d] = (0.492 [+-] 0.018 [+-] 0.013) ps[sup -1]. The statistical correlation coefficient between [tau][sub B[sup 0]] and [Delta]m[sub d] is -0.22. I describe in detail several cutting-edge strategies this analysis uses to study these phenomena, laying important groundwork for the future. I also discuss several extensions of this work to include possible measurements of higher order parameters such as [Delta][Lambda][sub d].
Book Synopsis Time Dependent B{sub S}° - {bar B}{sub S}° Mixing Using Inclusive and Semileptonic B{sup S} Decays at SLD. by :
Download or read book Time Dependent B{sub S}° - {bar B}{sub S}° Mixing Using Inclusive and Semileptonic B{sup S} Decays at SLD. written by and published by . This book was released on 1998 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors set a preliminary 95% C.L. exclusion on the oscillation frequency of B{sub s}°-{anti B}{sub s}° mixing using a sample of 250,000 hadronic Z° decays collected by the SLD experiment at the SLC between January 1996 and March 1998. The analyses determine the b-hadron flavor at production by exploiting the large forward-backward asymmetry of polarized Z° 2!b{anti b} decays as well as information from the hemisphere opposite that of the reconstructed B decay. In one analysis, B decay vertices are reconstructed inclusively with a topological technique, and separation between B{sub s}° and {anti B}{sub s}° decays exploits the B{sub s}° 2!D{sub s}− cascade charge structure. The other analysis selects semileptonic decays reconstructed by intersecting a lepton with he trajectory of a topologically reconstructed D meson. The two analyses are combined to exclude the following values of the B{sub s}°-{anti B}{sub s}° mixing oscillation frequency: [Delta]m{sub s}
Book Synopsis الادب الاندلسي من الفتح حتى سقوط غرناطة ٩٢-٨٩٧ by :
Download or read book الادب الاندلسي من الفتح حتى سقوط غرناطة ٩٢-٨٩٧ written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Anomalous Magnetic Moment of the Muon by : Fred Jegerlehner
Download or read book The Anomalous Magnetic Moment of the Muon written by Fred Jegerlehner and published by Springer Science & Business Media. This book was released on 2008 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the present state of knowledge of the anomalous magnetic moment a=(g-2)/2 of the muon. The muon anomalous magnetic moment is one of the most precisely measured quantities in elementary particle physics and provides one of the most stringent tests of relativistic quantum field theory as a fundamental theoretical framework. It allows for an extremely precise check of the standard model of elementary particles and of its limitations.
Book Synopsis Particle Physics by : Necia Grant Cooper
Download or read book Particle Physics written by Necia Grant Cooper and published by CUP Archive. This book was released on 1988-04-29 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains the emergence of a profoundly new understanding of the fundamental forces of Nature.
Download or read book Quantum Aspects of Life written by Abbott and published by Imperial College Press. This book was released on 2008 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the hotly debated question of whether quantum mechanics plays a non-trivial role in biology. In a timely way, it sets out a distinct quantum biology agenda. The burgeoning fields of nanotechnology, biotechnology, quantum technology, and quantum information processing are now strongly converging. The acronym BINS, for Bio-Info-Nano-Systems, has been coined to describe the synergetic interface of these several disciplines. The living cell is an information replicating and processing system that is replete with naturally-evolved nanomachines, which at some level require a quantum mechanical description. As quantum engineering and nanotechnology meet, increasing use will be made of biological structures, or hybrids of biological and fabricated systems, for producing novel devices for information storage and processing and other tasks. An understanding of these systems at a quantum mechanical level will be indispensable.
Book Synopsis Problems and Solutions on Quantum Mechanics by : Yung-Kuo Lim
Download or read book Problems and Solutions on Quantum Mechanics written by Yung-Kuo Lim and published by World Scientific. This book was released on 1998 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: The material for these volumes has been selected from 20 years of examination questions for graduate students at the University of California at Berkeley, Columbia University, University of Chicago, MIT, SUNY at Buffalo, Princeton University and the University of ...
Book Synopsis Z Physics at LEP 1 by : Guido Altarelli
Download or read book Z Physics at LEP 1 written by Guido Altarelli and published by . This book was released on 1989 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Physics by : Brian R. Martin
Download or read book Particle Physics written by Brian R. Martin and published by John Wiley & Sons. This book was released on 2013-03-22 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential introduction to particle physics, with coverage ranging from the basics through to the very latest developments, in an accessible and carefully structured text. Particle Physics: Third Edition is a revision of a highly regarded introduction to particle physics. In its two previous editions this book has proved to be an accessible and balanced introduction to modern particle physics, suitable for those students needed a more comprehensive introduction to the subject than provided by the ‘compendium’ style physics books. In the Third Edition the standard model of particle physics is carefully developed whilst unnecessary mathematical formalism is avoided where possible. Emphasis is placed on the interpretation of experimental data in terms of the basic properties of quarks and leptons. One of the major developments of the past decade has been the establishing of the existence of neutrino oscillations. This will have a profound effect on the plans of experimentalists. This latest edition brings the text fully up-to-date, and includes new sections on neutrino physics, as well as expanded coverage of detectors, such as the LHC detector. End of chapter problems with a full set of hints for their solutions provided at the end of the book. An accessible and carefully structured introduction to this demanding subject. Includes more advanced material in optional ‘starred’ sections. Coverage of the foundations of the subject, as well as the very latest developments.
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