Author: Gemma Claire FardellPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Measurement of the Effective Lifetime of the B0 S Meson Using the Flavour Specific Decay Bs → D-s Π + at the LHCb Experiment
Author: Gemma Claire FardellGauge Theory of Weak Decays
Author: Andrzej J. BurasPublisher: Cambridge University Press
ISBN: 1107034035
Category : Science
Languages : en
Pages : 739
Book Description
"The ultimate question of elementary particle physics is: What is the fundamental Lagrangian of nature surrounding us? The Lagrangian of the SM is very successful in describing nature at the currently available energy range. The discovery of the Higgs boson completed the particle spectrum of the SM and it is another proof of how well the SM works. Nevertheless the SM cannot be the end of the story and it is for sure not the fundamental Lagrangian of nature. The Lagrangian of the SM looses its validity at the latest at the Planck scale where gravitational effects become noticeable.Most physicists think of the SM as an effective theory that has to be replaced by a more fundamental theory above the TeV scale. What the word effective really means will hopefully be clear at later stages of our book. For the time being we will list some problems and open questions of the SM"--
Multiquark Hadrons
Author: Ahmed AliPublisher: Cambridge University Press
ISBN: 110717158X
Category : Science
Languages : en
Pages : 245
Book Description
A comprehensive summary of current research into multiquark hadrons, describing them in terms of constituent quarks, gluons and compact diquarks.
Measurement of the Lifetime of the B0s Meson Using the Exclusive Decay Mode B0s --> J/[psi Phi]
![Measurement of the Lifetime of the B0s Meson Using the Exclusive Decay Mode B0s --> J/[psi Phi] PDF](https://books.google.com/books/content/images/frontcover/L-vXNwAACAAJ?fife=w80-h100)
Author: Farrukh AzfarMeasurement of the B0s Lifetime in the Flavor-specific Decay Channel B0s {u2192} D-s?+?X.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We present an updated measurement of the B0s lifetime using the semileptonic decays B0s → D-s?+?X, with D–s → ?– and ? → K+K– (and the charge conjugate process). This measurement uses the full Tevatron Run II sample of proton-antiproton collisions at √s = 1.96 TeV, comprising an integrated luminosity of 10.4 fb–1. We find a flavor-specific lifetime ?fs(B0s) = 1.479 ± 0.010(stat) ± 0.021(syst) ps. This technique is also used to determine the B0 lifetime using the analogous B0 → D–?+?X decay with D– → ??– and ? → K+K–, yielding ?(B0) = 1.534 ± 0.019(stat) ± 0.021(syst) ps. Both measurements are consistent with the current world averages, and the B0s lifetime measurement is one of the most precise to date. As a result, taking advantage of the cancellation of systematic uncertainties, we determine the lifetime ratio ?fs(B0s)/?(B0) = 0.964 ± 0.013(stat) ± 0.007(syst).
Charged Particles
Author: Malek MaazaPublisher: BoD – Books on Demand
ISBN: 1789853958
Category : Science
Languages : en
Pages : 106
Book Description
A charged particle is a particle that carries an electric charge and can be discussed in many aspects. This book focuses on cutting-edge and important research topics such as flavor physics to search for new physics via charged particles that appear in different extensions of the standard model, as well as the analysis of ultra-high energy muons using the pair-meter technique. Also included in this book are the idea of the Eloisatron to PeVatron, the important research field of electrostatic waves in magnetized electron/positron plasmas, and the application of charge bodies.
Measurement of Lifetimes for Heavy Flavour Mesons Using Semileptonic B Decays at LHCb
Author: Brice Emile MaurinPublisher:
ISBN:
Category :
Languages : en
Pages : 130
Book Description
Mots-clés de l'auteur: LHC ; LHCb ; particle physics ; B physics ; lifetime ; semileptonic decay.
Measurement of the B+c Meson Lifetime Using B+c -> J/[Psi][mu]+[nu][mu][Chi] Decays with the LHCb Detector at CERN
![Measurement of the B+c Meson Lifetime Using B+c -> J/[Psi][mu]+[nu][mu][Chi] Decays with the LHCb Detector at CERN PDF](https://books.google.com/books/content/images/frontcover/kIAsnQAACAAJ?fife=w80-h100)
Author: Lucio AnderliniMeasurement of the B0s Lifetime in the Flavor-specific Decay Channel B0s 2!D-s[mu]+[nu]X.
![Measurement of the B0s Lifetime in the Flavor-specific Decay Channel B0s 2!D-s[mu]+[nu]X. PDF](https://books.google.com/books/content/images/frontcover/eY5lAQAACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We present an updated measurement of the B0s lifetime using the semileptonic decays B0s → D-s[mu]+[nu]X, with D-s → [pi]- and [Phi] → K+K- (and the charge conjugate process). This measurement uses the full Tevatron Run II sample of proton-antiproton collisions at √s = 1.96 TeV, comprising an integrated luminosity of 10.4 fb-1. We find a flavor-specific lifetime [tau]fs(B0s) = 1.479 ± 0.010(stat) ± 0.021(syst) ps. This technique is also used to determine the B0 lifetime using the analogous B0 → D-[mu]+[nu]X decay with D- → [Phi][pi]- and [Phi] → K+K-, yielding [tau](B0) = 1.534 ± 0.019(stat) ± 0.021(syst) ps. Both measurements are consistent with the current world averages, and the B0s lifetime measurement is one of the most precise to date. As a result, taking advantage of the cancellation of systematic uncertainties, we determine the lifetime ratio [tau]fs(B0s)/[tau](B0) = 0.964 ± 0.013(stat) ± 0.007(syst).
Measurement of the B− and {bar B}° Meson Lifetimes Using Semileptonic Decays
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
The lifetimes of the B− and {bar B}° mesons are measured using the partially reconstructed semileptonic decays in the CDF experiment.