Measurements of Charmless B-hadron Decays at CDF
Author : Fabrizio Ruffini
Publisher :
Page : pages
File Size : 47,87 MB
Release : 2013
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ISBN :
Measurements of Charmless B-hadron Decays at CDF; First Evidence for the Annihilation $B^0_s \to \pi^+ \pi^-$ Decay Mode
Author :
Publisher :
Page : 264 pages
File Size : 27,53 MB
Release : 2013
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ISBN :
Book Description
This work of thesis will investigate the heavy flavor sector, involving decays of particles containing the most massive quarks. In particular, we will study the bhadrons, that means particles containing b-quarks. The topic of this work is the measurements of B and CP asymmetries of two-body charmless decays of neutral b-hadrons, (B0 (s) → h+h' - and [Lambda]0 b →and ph -, where the h can be a pion or a kaon) collectively called B → h+h' -. Next sections describe the theoretical framework in which the b-hadrons are included. Firstly, it is necessary to introduce the CKM matrix describing the electroweak interactions between quarks and how the phenomenon of the CP violation manifests itself.
Charmless B-hadrons Decays at CDF.
Author :
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Page : 4 pages
File Size : 48,26 MB
Release : 2008
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Book Description
We present CDF results on the branching fractions and time-integrated direct CP asymmetries for Bd, Bs and Lb decay modes into pairs of charmless charged hadrons (pions, kaons and protons). The data-set for these measurements amounts to 1fb−1 of p{bar p} collisions at a center of mass energy 1.96TeV. We report on the first observation of the Bs->Kpi, Lb-ppi and Lb->pK decay modes and on the measurement of their branching fractions and direct CP asymmetries.
Studies of CP-Violation in Charmless Three-Body b-Hadron Decays
Author : Daniel O'Hanlon
Publisher : Springer
Page : 225 pages
File Size : 10,26 MB
Release : 2018-11-02
Category : Science
ISBN : 3030022064
Book Description
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.
Updated Measurements of Hadronic B Decays at CDF.
Author :
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Page : 5 pages
File Size : 28,55 MB
Release : 2012
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Book Description
The CDF experiment at the Tevatron p{bar p} collider established that extensive and detailed exploration of the b-quark dynamics is possible in hadron collisions, with results competitive and supplementary to those from ee− colliders. This provides a rich, and highly rewarding program that has currently reached full maturity. In the following I report some recent results on hadronic decays: the evidence for the charmless annihilation decay mode B{sub s}° →?+?−, and the first reconstruction in hadron collisions of the suppressed decays B− → D(→ K+?°)K− and B− → D(→ K+?−)?−.
Hadron Collider Physics 2005
Author : Mario Campanelli
Publisher : Springer Science & Business Media
Page : 360 pages
File Size : 46,70 MB
Release : 2007-08-17
Category : Science
ISBN : 3540328416
Book Description
This book gathers the proceedings of The Hadron Collider Physics Symposia (HCP) 2005, and reviews the state-of-the-art in the key physics directions of experimental hadron collider research. Topics include QCD physics, precision electroweak physics, c-, b-, and t-quark physics, physics beyond the Standard Model, and heavy ion physics. The present volume serves as a reference for everyone working in the field of accelerator-based high-energy physics.
Measurement of B Hadron Masses in Exclusive J/psi Decays with the CDF Detector
Author :
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Page : pages
File Size : 42,86 MB
Release : 2005
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Book Description
Spectroscopy and Decay of B Hadrons at the Tevatron
Author :
Publisher :
Page : 22 pages
File Size : 11,15 MB
Release : 2007
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Book Description
The authors review recent results on heavy quark physics focusing on Run II measurements of B hadron spectroscopy and decay at the Tevatron. A wealth of new B physics measurements from CDF and D0 has been available. These include the spectroscopy of excited B states (B**, B**{sub s}) and the observation of the [Sigma]{sub b} baryon. The discussion of the decays of B hadrons and measurements of branching fractions focuses on charmless two-body decays of B 2!hh−. They report several new B{sub s}° and [Lambda]{sub b}° decay channels.
Proceedings Of The 28th International Conference On High Energy Physics (In 2 Volumes)
Author : Zygmunt Ajduk
Publisher : World Scientific
Page : 1878 pages
File Size : 15,66 MB
Release : 1997-04-11
Category :
ISBN : 9814547107
Book Description
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.
Measurements of the Masses, Lifetimes and Decay Modes of Hadrons at Tevatron
Author :
Publisher :
Page : 4 pages
File Size : 50,69 MB
Release : 2010
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Book Description
The Tevatron provides 1.96 TeV p{bar p} collisions and allows for collection of rich b-hadron samples to the two experiments CDF and D0. The study of heavy flavor properties represents a fruitful opportunity to investigate the flavor sector of the Standard Model (SM) and to look for hints of New Physics (NP). Here we report the first measurement of polarization amplitudes in B{sub s}° charmless decays, world leading results on b-hadron lifetimes, and measurements of several other properties of b-hadrons.
