Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Observation Of Charmless B Meson Decays full books in PDF, epub, and Kindle. Read online Observation Of Charmless B Meson Decays ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Download or read book Observation of charmless B meson decays written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : ARGUS Collaboration
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (354 download)
Download or read book Observation of Semileptonic Charmless B Meson Decays written by ARGUS Collaboration and published by . This book was released on 1989 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observation of semileptonic charmless B-meson decays written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Eric Ashton Eckhart
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (531 download)
Download or read book A Search for Charmless Baryonic B Meson Decays at CLEO written by Eric Ashton Eckhart and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: We search for the decays of $B$ mesons to charmless final states involving a baryon and an anti-baryon using 9.2 fb -1 of e + e - annihilation data taken on the?(4s) resonance with the CLEO II and CLEO II. V detectors, and 6.2 fb -1 from CLEO III. We perform an extended maximum likelihood analysis of the data to determine signal yields. We report an observation of the decay mode B - -> p anti-p K - and measure its branching fraction to be (5.88 +2.86 -2.21 (stat.) +1.12 -0.19 (syst.)) x 10 -6 . We find no statistically significant signals for our other modes and establish 90% C.L. upper limits of BR(B -> p anti-p) 1.4 x 10 -6, BR(B - anti-p?) 1.5 x 10 -6, BR(B -? anti-?) 1.2 x 10 -6, and BR(B - anti-p?p +)
Author : Frank Wurthwein
Publisher :
ISBN 13 :
Total Pages : 402 pages
Book Rating : 4.E/5 ( download)
Download or read book Observation of B Decay to Two Charmless Mesons written by Frank Wurthwein and published by . This book was released on 1995 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Émilie Bertholet
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (119 download)
Download or read book Search for New Physics in Charmless Three-body B-meson Decays written by Émilie Bertholet and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis discusses different aspects of the analysis of charmless three-body B-meson decays. A study of a method of extracting the weak phase gamma using five decay modes under the assumption of flavour-SU(3) symmetry is performed. This study is carried out using BABAR-analysis results and consists in a complete proof of principle, including fully propagated uncertainties. Six possible solutions are obtained with an uncertainty below 11 degrees. It is also found that, when averaged over the entire Dalitz plane, the effect of SU(3) breaking on the analysis is only at the percent level. A second analysis presented in the manuscipt consists in the measurement of the branching fractions of the B0(s)->KShh' modes, where h(') represents a pion or a kaon. It uses data collected by the LHCb detector during run I and a part of run II, corresponding to an integrated luminosity of almost 5/fb. The B0s->KSKK decay mode is observed for the first time, with a significance of almost 7 standard deviations; the B0s->KSKK branching fraction with respect to B0->KSpipi is extracted. This analysis paves the road to the measurements of the branching fractions of the six B0(s)->KShh' decay modes with the whole run I and run II LHCb dataset.
Author : Patrick Liniger
Publisher :
ISBN 13 :
Total Pages : 145 pages
Book Rating : 4.:/5 (84 download)
Download or read book Charmless B-meson Decays in the Standard Model written by Patrick Liniger and published by . This book was released on 2001 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stephen Andrew Thorn
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (181 download)
Download or read book Observation of Semileptonic Charmless Bottom Meson Decays with the Aleph Detector at LEP. written by Stephen Andrew Thorn and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Paolo Gandini
Publisher : Springer Science & Business Media
ISBN 13 : 3319010298
Total Pages : 179 pages
Book Rating : 4.3/5 (19 download)
Download or read book Observation of CP Violation in B± → DK± Decays written by Paolo Gandini and published by Springer Science & Business Media. This book was released on 2013-09-05 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: CP violation is a well-established phenomenon in particle physics, but until 2001 it was only observed in kaons. In the last decade, several matter-antimatter asymmetries have been observed in neutral B mesons in line with the expectations of the Standard Model of the weak interaction. Direct CP violation is also expected in the decay rates of charged B+ mesons versus that of B- mesons, though the greatest effects are present in a decay that occurs just twice in 10 million decays. Such rarity requires huge samples to study and this is exactly what the LHC, and its dedicated B-physics experiment LHCb provide. This thesis presents an analysis of the first two years of LHCb data. The author describes the first observation of the rare decay, B- → DK-, D → π-K+ and the first observation of direct CP violation in this B decay. The work constitutes essential information on the experiment’s measurement of a fundamental parameter of the theory and stands as a benchmark against which subsequent analyses of this type will be compared.
Author : John Joseph O'Neill (Ph. D. in physics)
Publisher :
ISBN 13 :
Total Pages : 143 pages
Book Rating : 4.:/5 (128 download)
Download or read book Observation of Exclusive B Meson Decays to Final States Containing a Charmed Baryon written by John Joseph O'Neill (Ph. D. in physics) and published by . This book was released on 1996 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Measurements of Branching Fractions and CP-Violating Asymmetries in B-Meson Decays to the Charmless Two-Body States K[sup 0]pi+, K-bar[sup 0]K[sup +], and K[sup 0]K-bar[sup 0]. PDF Online Free](https://books.google.com/books/content/images/frontcover/t_n-jwEACAAJ?fife=w200-h370)
Download or read book Measurements of Branching Fractions and CP-Violating Asymmetries in B-Meson Decays to the Charmless Two-Body States K[sup 0]pi+, K-bar[sup 0]K[sup +], and K[sup 0]K-bar[sup 0]. written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present preliminary measurements of the branching fraction and the CP-violating charge asymmetry in the B[sup +] --> K[sup 0][pi][sup +] decay, and a preliminary measurement of the branching fraction of the B[sup 0] --> K[sup 0][bar K][sup 0] decay. No evidence of direct CP violation in the B[sup +] --> K[sup 0][pi][sup +] mode is observed. The B[sup 0] --> K[sup 0][bar K][sup 0] measurement constitutes the first observation of this decay channel: the probability of obtaining the result assuming the null-signal hypothesis is 3.4 x 10[sup -6]. The authors have also searched for the B[sup +] --> [bar K][sup 0]K[sup +] decay and set an upper limit on its branching fraction at 2.35 x 10[sup -6] at the 90% C.L. The branching-fraction measurements reported here are consistent with previous measurements of the same quantities, but are extracted from a data sample larger by a factor of 2.6.
Author :
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (16 download)
Download or read book OBSERVATION OF EXCLUSIVE TWO-BODY B DECAYS TO KAONS AND PIONS. written by and published by . This book was released on 2003 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have studied two-body charmless hadronic decays of B mesons into the final states??, K?, and KK. Using 3.3 million B{bar B} pairs collected with the CLEO-II detector, we have made the first observation of the decays B° → K?−, B+ → K°?+, and the sum of B+ →?+?° and B+ → K+?° decays (an average over charge-conjugate states is always implied). We place upper limits on branching fractions for the remaining decay modes.
Author :
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (16 download)
Download or read book Observation and Study of the Baryonic B-meson Decays B to D(*) P Pbar?? written by and published by . This book was released on 2012 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results for B-meson decay modes involving a charm meson, protons, and pions using 455 x 106 B{bar B} pairs recorded by the BABAR detector at the SLAC PEP-II asymmetric-energy ee− collider. The branching fractions are measured for the following ten decays: {bar B}° → D°p{bar p}, {bar B}° → D*°p{bar p}, {bar B}° → D+p{bar p}?−, {bar B}° → D*+p{bar p}?−, B− → D°p{bar p}?−, B− → D*°pp?−, {bar B}° → D°p{bar p}?−?+, {bar B}° → D*°p{bar p}?−?+, B− → D+p{bar p}?−?−, and B− → D*+p{bar p}?−?−. The four B− and the two five-body B° modes are observed for the first time. The four-body modes are enhanced compared to the three- and the five-body modes. In the three-body modes, the M(p{bar p}) and M(D{sup (*)0}p) invariant mass distributions show enhancements near threshold values. In the four-body mode {bar B}° → D+p{bar p}?−, the M(p?−) distribution shows a narrow structure of unknown origin near 1.5GeV/c2. The distributions for the five-body modes, in contrast to the others, are similar to the expectations from uniform phase-space predictions.
Author : Ali Anjomshoaa
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)
Download or read book Study of the Rare Charmless Hadronic B Meson Decays written by Ali Anjomshoaa and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel O'Hanlon
Publisher : Springer
ISBN 13 : 3030022064
Total Pages : 215 pages
Book Rating : 4.0/5 (3 download)
Download or read book Studies of CP-Violation in Charmless Three-Body b-Hadron Decays written by Daniel O'Hanlon and published by Springer. This book was released on 2018-11-02 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights two essential analyses of data collected during the LHCb experiment, based on the Large Hadron Collider at CERN. The first comprises the first observation and studies of matter-antimatter asymmetries in two three-body b-baryon decays, paving the way for more precise measurements of the relatively unknown decay properties of b-baryon decays. The second is an analysis of a charged B meson decay to three charged pions, where previously large matter-antimatter asymmetries were observed in a model-independent analysis. Here a model of the decay amplitude is constructed using the unitarity-conserving ‘K-matrix’ model for the scalar contributions, so as to gain an understanding of how the previously observed matter-antimatter asymmetries arise; further, the model’s construction yields the most precise and comprehensive study of this decay mode to date.
Author : Tetiana B. Hryn'ova
Publisher :
ISBN 13 :
Total Pages : 165 pages
Book Rating : 4.:/5 (316 download)
Download or read book Study of B Meson Decays to Ppbarh Final States written by Tetiana B. Hryn'ova and published by . This book was released on 2006 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: B mesons are unique among well-established non-quarkonium mesons in their ability to decay into baryons. Baryonic B decays offer a wide range of interesting areas of study: they can be used to test our theoretical understanding of rare decay processes involving baryons, search for direct CP violation and study low-energy QCD. This thesis presents measurements of branching fractions and a study of the decay dynamics of the charmless three-body decays of B meson into p{bar p}h final states, where h = {pi}{sup +}, K{sup +}, K{sub S}{sup 0}, K*{sup 0} or K*{sup +}. With a sample of 232 million {Upsilon}(4S) {yields} B{bar B} events collected with the BaBar detector, we report the first observation of the B {yields} p{bar p}K*{sup 0} decay, and provide improved measurements of branching fractions of the other modes. The distribution of the three final-state particles is of particular interest since it provides dynamical information on the possible presence of exotic intermediate states such as the hypothetical pentaquark states {Theta}*{sup ++} and {Theta}{sup +}in the m{sub pK{sup +}} and m{sub pK{sub S}{sup 0}} spectra, respectively, or glueball states (such as the tensor glueball f{sub J}(2220)) in the m{sub p{bar p}} spectrum. No evidence for exotic states is found and upper limits on the branching fractions are set. An enhancement at low p{bar p} mass is observed in all the B {yields} p{bar p}h modes, and its shape is compared between the decay modes and with the shape of the time-like proton form factor. A Dalitz plot asymmetry in B {yields} p{bar p}K{sup +} mode suggests dominance of the penguin amplitude in this decay and disfavors the possibility that the low mass p{bar p} enhancement originates from the presence of a resonance below threshold (such as the recently seen baryonium candidate at 1835 MeV/c{sup 2}). We also identify decays of the type B {yields} X{sub c{bar c}}h {yields} p{bar p}h, where h = K{sup +}, K{sub S}{sup 0}, K*{sup 0} or K*{sup +}, and X{sub c{bar c}} = {eta}{sub c} or J/{psi}. In particular, we report on the evidence of the B {yields} {eta}{sub c}K*{sup +} decay and provide a measurement of the width of {eta}{sub c}.
![Download Observation of the Rare Decay B0 --] Ks K /- Pi- PDF Online Free](https://books.google.com/books/content/images/frontcover/5U0SnQAACAAJ?fife=w200-h370)
Author :
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (893 download)
Download or read book Observation of the Rare Decay B0 --] Ks K /- Pi- written by and published by . This book was released on 2010 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report an analysis of charmless hadronic decays of neutral B mesons to the final state K{sub S}°K{sup ±}[pi]{sup {-+}}, using a data sample of (465 ± 5) x 106 B{bar B} events collected with the BABAR detector at the [Upsilon](4S) resonance. We observe an excess of signal events with a significance of 5.2 standard deviations including systematic uncertainties and measure the branching fraction to be [Beta](B° → K{sub S}°K{sup ±}[pi]{sup {-+}}) = (3.2 {+-} 0.5 {+-} 0.3) x 10−6, where the uncertainties are statistical and systematic, respectively.
