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ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (16 download)
Download or read book First Observation of the Decay $B_s0̂ \to D_s-̂ D_s+̂$ and Measurement of Its Branching Ratio written by and published by . This book was released on 2007 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Matthew Tilley
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (122 download)
Download or read book First Observation of the Decay B→ppbarμν and Measurement of Its Differential Branching Fraction written by Matthew Tilley and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 183 pages
Book Rating : 4.:/5 (16 download)
Download or read book First Observation of the Decay $\bar{B}$$0\atop{s}$ {u2192} D$±\atop{s}$ K{u2213} and Measurement of the Relative Branching Fraction B($\bar{B}$$0\atop{s}${u2192} D$±\atop{s}$ K{u2213})/B($\bar{B}$$0\atop{s}${u2192} D$+\atop{s}$ ?-). written by and published by . This book was released on 2007 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the first observation of the decay $ar{B}$$0top{s}$→ D$±top{s}$ K∓ and measure the relative branching fraction of $ar{B}$$0top{s}$ → D$±top{s}$ K∓ to $ar{B}$$0top{s}$ → D$+top{s}$ ?-. The measurement of the relative branching fraction is performed by applying a fit in invariant mass and specific ionization to 1.2 fb-1 of Ds(??)X data collected with the CDF II detector in pp collisions at √ s = 1.96 TeV at the Fermilab Tevatron collider. We measure B $ar{B}$$0top{s}$ → D$±top{s}$ K∓ /B $ar{B}$$0top{s}$ → D$+top{s}$ ?- = 0.107±0.019(stat)±0.008(sys). The statistical significance of the $ar{B}$$0top{s}$ → D$±top{s}$ K∓ signal is 7.9?. To cross-check our analysis method, we also measure B $ar{B0}$→ D+K- /B $ar{B0}$ → D+?- and B $ar{B0}$ → D+*K- /B $ar{B0}$ → D*+?- and verify that our results are in agreement with the world average.
![Download First Observation of the Decay B Bar 0s --] ; D+-s K-+ and Measurement of Br(B Bar 0s --] ; D+-sK-+) PDF Online Free](https://books.google.com/books/content/images/frontcover/PMCbAQAACAAJ?fife=w200-h370)
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ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.:/5 (727 download)
Download or read book First Observation of the Decay B Bar 0s --] ; D+-s K-+ and Measurement of Br(B Bar 0s --] ; D+-sK-+) written by and published by . This book was released on 2007 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 183 pages
Book Rating : 4.:/5 (16 download)
Download or read book First Observation of the Decay $\bar{B}$$0\atop{s}$ {u2192}; D$+\atop{s}$ K{u2213} and Measurement of B($\bar{B}$$0\atop{s}$ {u2192}; D$±\atop{s}$K{u2213})/Br($\bar{B}$$0\atop{s}${u2192}; D$+\atop{s}$ ?-). written by and published by . This book was released on 2007 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the first observation of the decay $ar{B}$$0top{s}$ → D$+top{s}$ K∓ and measure the relative branching fraction of $ar{B}$$0top{s}$ → D$+top{s}$ K∓ to $ar{B}$$0top{s}$ → D$+top{s}$ ?-. The measurement of the relative branching fraction is performed by applying a fit in invariant mass and specific ionization to 1.2 fb-1 of Ds(??)X data collected with the CDF II detector in pp collisions at √s = 1.96 TeV at the Fermilab Tevatron collider. We measure B($ar{B}$$0top{s}$ → D± s K∓¢/B($ar{B}$$0top{s}$ → D$+top{s}$ ?-) = 0.107±0.019(stat)±0.008(sys). The statistical significance of the $ar{B}$$0top{s}$ → D$+top{s}$ K∓ signal is 7.9?. To cross-check our analysis method, we also measure B($ar{B0}$ → D+K-)/B($ar{B0}$ → D+?-) and B($ar{B0}$ → D*+K-)/B($ar{B0}$ → D*+?-) and verify that our results are in agreement with the world average.
![Download Observation of the Decay B- --] Ds(*) K- L- Nubar PDF Online Free](https://books.google.com/books/content/images/frontcover/07ZfAQAACAAJ?fife=w200-h370)
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ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (873 download)
Download or read book Observation of the Decay B- --] Ds(*) K- L- Nubar written by and published by . This book was released on 2011 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report the observation of the decay B− 2!D{sub s}{sup (*)+} K−l−{bar {nu}}{sub l} based on 342 fb−1 of data collected at the [Upsilon](4S) resonance with the BABAR detector at the PEP-II ee− storage rings at SLAC. A simultaneous fit to three D{sub s}+ decay chains is performed to extract the signal yield from measurements of the squared missing mass in the B meson decay. We observe the decay B− 2!D{sub s}{sup (*)+} K−l−{bar {nu}}{sub {ell}} with a significance greater than five standard deviations (including systematic uncertainties) and measure its branching fraction to be [Beta](B− 2!D{sub s}{sup (*)+} K−{ell}−{bar {nu}}{sub {ell}}) = [6.13{sub -1.03}{sup +1.04}(stat.) ± 0.43(syst.) ± 0.51([Beta](D{sub s}))] x 10−4, where the last error reflects the limited knowledge of the D{sub s} branching fractions.
Author : Johannes Muelmenstaedt
Publisher :
ISBN 13 :
Total Pages : 464 pages
Book Rating : 4.:/5 (35 download)
Download or read book First Observation of the Decay B̳0s̳ written by Johannes Muelmenstaedt and published by . This book was released on 2007 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download First Observation of the Cabibbo-suppressed Decays Xi+(c) ---] Sigma+ Pi- Pi+ and Xi+(c) ---] Sigma- Pi+ Pi+ and Measurement of Their Branching Ratios PDF Online Free](https://books.google.com/books/content/images/frontcover/pcrAwQEACAAJ?fife=w200-h370)
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ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (16 download)
Download or read book First Observation of the Cabibbo-suppressed Decays Xi+(c) ---] Sigma+ Pi- Pi+ and Xi+(c) ---] Sigma- Pi+ Pi+ and Measurement of Their Branching Ratios written by and published by . This book was released on 2008 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report the first observation of two Cabibbo-suppressed decay modes,?{sub c} →?+?−?+ and?{sub c}+ →?−?+?+. They observe 56 ± 13 over a background of 21, and 23 ± 7 over a background of 12 events, respectively, for the signals. The data were accumulated using the SELEX spectrometer during the 1996-1997 fixed target run at Fermilab, chiefly from a 600 GeV/c?− beam. The branching ratios of the decays relative to the Cabibbo-favored?{sub c}+ →?−?+?+ are measured to be B(?{sub c}+ →?+?−?+)/B(?{sub c}+ →?−?+?+) = 0.50 ± 0.20, and B(?{sub c}+ →?−?+?+)/B(?{sub c}+ →?−?+?+) = 0.23 ± 0.11, respectively. They also report branching ratios for the same decay modes of the?{sub c}+ relative to?{sub c}+ → pK−?+.
Author : Abner Soffer
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783846532034
Total Pages : 220 pages
Book Rating : 4.5/5 (32 download)
Download or read book First Observation of the Decay B written by Abner Soffer and published by LAP Lambert Academic Publishing. This book was released on 2011-12 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of antimatter in the early 1930s posed a new puzzle: at some point in the past, the universe contained equal amounts of matter and antimatter, which should have annihilated each other completely. However, the existence of galaxies, planets, and our own bodies demonstrates that some of the matter survived this primordial annihilation, while the antimatter did not. This indicates that there must be a small matter-antimatter asymmetry in the laws of physics. Understanding these laws involves measuring the parameters governing them. The best way to measure a matter-antimatter asymmetry parameter called gamma is with particular radioactive decays of short-lived particles created in dedicated particle accelerators. This thesis describes the 1998 discovery of these decays, which constituted the first step toward the subsequent measurement of gamma. The thesis opens with a layperson-friendly introduction, using a simple analogy between particle physics and poetry. With this basic understanding at hand, the reader is led through the details of the measurement and its hi-tech apparatus, obtaining an insider's view of how cutting-edge particles-physics experiments are performed
![Download Measurement of Branching Ratio and B0s Lifetime in the Decay B0s 2!J/[psi] F0(980) at CDF. PDF Online Free](https://books.google.com/books/content/images/frontcover/eRymAQAACAAJ?fife=w200-h370)
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ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (925 download)
Download or read book Measurement of Branching Ratio and B0s Lifetime in the Decay B0s 2!J/[psi] F0(980) at CDF. written by and published by . This book was released on 2011 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a study of Bs0 decays to the CP-odd final state J/[psi] f0(980) with J/[psi] 2!æ+æ- and f0(980) 2![pi]+[pi]-. Using pp̄ collision data with an integrated luminosity of 3.8 fb-1 collected by the CDF II detector at the Tevatron we measure a Bs0 lifetime of [tau](B0s 2!J/[psi] f0(980)) = 1.70-0.11+0.12(stat) " 0.03(syst) ps. This is the first measurement of the Bs0} lifetime in a decay to a CP eigenstate and corresponds in the standard model to the lifetime of the heavy Bs0 eigenstate. We also measure the product of branching fractions of B0s 2!J/[psi] f0(980) and f0(980) 2![pi]+[pi]- relative to the product of branching fractions of B0s 2!J/[psi][phi] and [phi]2!+K- to be Rf0/[psi] = 0.257 " 0.020(stat) " 0.014(syst), which is the most precise determination of this quantity to date.
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ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (16 download)
Download or read book Decays of B_s Mesons and B Baryons written by and published by . This book was released on 2008 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent rate measurements of B{sub s}° mesons and?{sub b}° baryons produced in √s = 1.96 TeV proton-antiproton and?(5S) electron-positron collisions are reviewed, including the first observations of six new decay modes: B{sub s}° → D{sub s} K− (CDF), B{sub s}° → D{sub s}− D{sub s}+ (CDF), B{sub s}° → D{sub s1}−(2536)?+?{sub {mu}} X (DZero), B{sub s}° →?? (Belle)
Author : David Boutin
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (179 download)
Download or read book First Direct Observation of Bound-state Beta-decay written by David Boutin and published by . This book was released on 2005 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download First Observation of the Charmless Decay B to K [pi]0[pi]0 and Study of Its Dalitz Plot Structure PDF Online Free](https://books.google.com/books/content/images/frontcover/26heAQAACAAJ?fife=w200-h370)
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ISBN 13 :
Total Pages : 201 pages
Book Rating : 4.:/5 (953 download)
Download or read book First Observation of the Charmless Decay B to K [pi]0[pi]0 and Study of Its Dalitz Plot Structure written by and published by . This book was released on 2012 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results for the first measurement of the inclusive branching and CP asymmetry of the charmless 3-body decay B+ → K+[pi]0[pi]0 are presented. The analysis uses a data sample with an integrated luminosity of 429.0 fb-1, recorded by the BABAR detector at the PEP-II asymmetric B Factory. This sample corresponds to 470.9 ±} 2.8 million B$\bar{B}$ pairs. Measurements of the branching fractions (B) and CP asymmetries (ACP) of some of the intermediate resonances in the K+[pi]0[pi]0 Dalitz plot are also presented.
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ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (16 download)
Download or read book Measurement of Branching Ratio and $B_s0̂$ Lifetime in the Decay $B_s0̂ \rightarrow J/\psi F_0(980)$ at CDF. written by and published by . This book was released on 2011 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a study of B{sub s}° decays to the CP-odd final state J/? f0(980) with J/? →??− and f0(980) →?+?−. Using p{bar p} collision data with an integrated luminosity of 3.8 fb−1 collected by the CDF II detector at the Tevatron we measure a B{sub s}° lifetime of? (B{sub s}° → J/? f0(980)) = 1.70{sub -0.11}{sup +0.12}(stat) ± 0.03(syst) ps. This is the first measurement of the B{sub s}° lifetime in a decay to a CP eigenstate and corresponds in the standard model to the lifetime of the heavy B{sub s}° eigenstate. We also measure the product of branching fractions of B{sub s}° → J/? f0(980) and f0(980) →?+?− relative to the product of branching fractions of B{sub s}° → J/?? and? → K+K− to be R{sub f{sub 0}/?} = 0.257 ± 0.020(stat) ± 0.014(syst), which is the most precise determination of this quantity to date.
![Download Measurement of the Branching Ratio for the Decay [eta]-->[mu][mu]− PDF Online Free](https://books.google.com/books/content/images/frontcover/Wj-CNwAACAAJ?fife=w200-h370)
Author : Richard S. Kessler
Publisher :
ISBN 13 :
Total Pages : 616 pages
Book Rating : 4.:/5 (262 download)
Download or read book Measurement of the Branching Ratio for the Decay [eta]-->[mu][mu]− written by Richard S. Kessler and published by . This book was released on 1992 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download First Observation of the Bs-]K+K- Decay Mode, and Measurement of the B0 and Bs Mesons Decay-rates Into Two-body Charmless Final States at CDF. PDF Online Free](https://books.google.com/books/content/images/frontcover/vVjZjwEACAAJ?fife=w200-h370)
Author : Diego Tonelli
Publisher :
ISBN 13 :
Total Pages : 225 pages
Book Rating : 4.:/5 (316 download)
Download or read book First Observation of the Bs-]K+K- Decay Mode, and Measurement of the B0 and Bs Mesons Decay-rates Into Two-body Charmless Final States at CDF. written by Diego Tonelli and published by . This book was released on 2006 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors searched for decays of the type B{sub (s)}{sup 0} {yields} h{sup +}h{prime}{sup -} (where h, h{prime} = K or {pi}) in a sample corresponding to 180 pb{sup -1} of p{bar p} collisions at {radical}s = 1.96 TeV, collected by the upgraded Collider Detector at the Fermilab Tevatron. A total signal of approximately 900 events was reconstructed, and the relative branching fractions ({Beta}) of each decay mode were determined with a likelihood fit.
Author : B. Aubert
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (316 download)
Download or read book Observation of the Decays B- to Ds(*)+ K- Pi- written by B. Aubert and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report first observations of the decays B{sup -} {yields} D{sub s}{sup (*)+} K{sup -}{pi}{sup -}, using 292 fb{sup -1} of data collected at the {Upsilon}(4S) resonance energy by the BABAR detector at the PEP-II e{sup +}e{sup -} collider. The branching fractions are measured to be {Beta}(B{sup -} {yields} D{sub s}{sup +}K{sup -}{pi}{sup -}) = (1.88 {+-} 0.13 {+-} 0.41) {center_dot} 10{sup -4} and {Beta}(B{sup -} {yields} D{sub s}{sup *+}K{sup -}{pi}{sup -}) = (1.84 {+-} 0.19 {+-} 0.40) {center_dot} 10{sup -4}.
