Measurement Of The Lifetime Of The B0s Meson Using The Exclusive Decay Mode B0s J Psi Phi

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Measurement Of The Lifetime Of The B0s Meson Using The Exclusive Decay Mode B0s J Psi Phi

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Author : Farrukh Azfar
language : en
Publisher:
Release Date : 1995

Measurement Of The Lifetime Of The B0s Meson Using The Exclusive Decay Mode B0s J Psi Phi written by Farrukh Azfar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.

Physics Briefs

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Author :
language : en
Publisher:
Release Date : 1986

Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Physics categories.

High Energy Physics Index

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Author :
language : en
Publisher:
Release Date : 1993

High Energy Physics Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Particles (Nuclear physics) categories.

Measurement Of The B C Pm Meson Lifetime Using B C Pm To J Psi Pi Pm Decays

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Author :
language : en
Publisher:
Release Date : 2013

Measurement Of The B C Pm Meson Lifetime Using B C Pm To J Psi Pi Pm Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.

This thesis describes a measurement of the lifetime of the B± c meson in an exclusive decay channel B± c 2!J/ [psi] [pi]±, where the J/[psi] decays as J/[psi] 2![mu]+[mu]- The measurement uses a data sample with an integrated luminosity of 6.7 fb-1 collected at CDF. This is the first measurement of the B± c meson lifetime in a hadronic channel and the measured lifetime, [tau] = 0.449 +0.054 -0.048(stat:) ± 0.019(syst:) ps, is in good agreement with previous results obtained from semileptonic decay channel and confirms previous measurements and theoretical predictions.

Measurement Of The Lifetime Difference And Cp Violating Phase In B S J Psi Phi Decays

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Author :
language : en
Publisher:
Release Date : 2007

Measurement Of The Lifetime Difference And Cp Violating Phase In B S J Psi Phi Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

Over the past decades the current theoretical description, the Standard Model of elementary particle physics, was solidified by many measurements as the basic theory describing fundamental particles and their interactions. It is extremely successful in explaining the high-precision data collected by experiments so far. The Standard Model includes several intrinsic parameters which have to be measured in experiments. Independent analyses of different physical processes can constrain those parameters. By combining those measurements physicists might be sensitive to physics beyond the Standard Model. If they are inconsistent it allows to get a hint on the theory that might supersede the Standard Model. The goal of the analysis presented in this thesis is to measure some of these parameters in the B{sub s} meson system. The B{sub s} meson, consisting of an anti-b and s quark, is not a pure mass eigenstate, thus allowing a B{sub s} meson to oscillate into its antiparticle via weak interacting processes. This is a general feature of any neutral meson. The history of meson mixing measurements is more then 50 years old. It was first observed in the kaon system. The oscillation in the B{sub d} system was measured very precisely by the B factories, whereas the oscillation frequency of the B{sub s} was measured with more than 5[sigma] significance last year by CDF and first evidence for mixing in the D0 system was presented only this year.

Measurement Of The B C Meson Lifetime Using B C2 J Psi L X Decays

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Author :
language : en
Publisher:
Release Date : 2008

Measurement Of The B C Meson Lifetime Using B C2 J Psi L X Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

This thesis describes a measurement of the average proper decay time of the B±c mesons, the ground state of bottom and charm quark bound states. The lifetime measurement is carried out in the decay modes B±c → J/[Psi] + e± + X and B±c → J/[Psi] + [mu]± + X, where the J/[Psi] decays as J/[Psi] → [mu]+[mu]- and the X are unmeasured particles such as ve or v[mu]. The data are collect by the CDF II detector which measures the properties of particles created in √s = 1.96 TeV p$\bar{p}$ collisions delivered by the Fermilab Tevatron. This measurement uses ~ 1 fb-1 of integrated luminosity. The measured average proper decay time of B±c mesons, [tau] = 0.475-0.049+0.053(stat.) ± 0.018(syst.) ps, is competitive with the most precise measurements in the world and confirms previous measurements and theoretical predictions.

Measurement Of Lifetime And Decay Width Difference In B0s J Psi Phi Decays

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Author :
language : en
Publisher:
Release Date : 2007

Measurement Of Lifetime And Decay Width Difference In B0s J Psi Phi Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

The authors measure the mean lifetime, [tau] = 2/([Lambda]{sub L} + [Lambda]{sub H}), and the decay-width difference, [Delta][Lambda] = [Lambda]{sub L} - [Lambda]{sub H}, of the light and heavy mass eigenstates of the B{sub s}° meson, B{sub sL}° and B{sub sH}°, in B{sub s}° → J/[psi][phi] decays using 1.7 fb−1 of data collected with the CDF II detector at the Fermilab Tevatron p{bar p} collider. Assuming CP conservation, a good approximation for the B{sub s}° system in the standard model, they obtain [Delta][Lambda] = 0.076{sub -0.063}{sup +0.059}(stat.) ± 0.006(syst.) ps−1 and [tau] = 1.52 ± 0.04(stat.) ± 0.02(syst.) ps, the most precise measurements to date. The constraints on the weak phase and [Delta][Lambda] are consistent with CP conservation.

Measurement Of The Average B 0 S Lifetime In The Decay B 0 S Arrow J Small Psi Small Phi

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Author : Thilo Pauly
language : en
Publisher:
Release Date : 2003

Measurement Of The Average B 0 S Lifetime In The Decay B 0 S Arrow J Small Psi Small Phi written by Thilo Pauly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with B mesons categories.

Measurement Of The B C Meson Lifetime Using B C U2192 J L X Decays

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Author :
language : en
Publisher:
Release Date : 2008

Measurement Of The B C Meson Lifetime Using B C U2192 J L X Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

This thesis describes a measurement of the average proper decay time of the B±c mesons, the ground state of bottom and charm quark bound states. The lifetime measurement is carried out in the decay modes B±c → J/? + e± + X and B±c → J/? + ?± + X, where the J/? decays as J/? → ?+?- and the X are unmeasured particles such as ve or v?. The data are collect by the CDF II detector which measures the properties of particles created in √s = 1.96 TeV p$ar{p}$ collisions delivered by the Fermilab Tevatron. This measurement uses ̃1 fb-1 of integrated luminosity. The measured average proper decay time of B±c mesons, ? = 0.475-0.049+0.053(stat.) ± 0.018(syst.) ps, is competitive with the most precise measurements in the world and confirms previous measurements and theoretical predictions.

Measurement Of The B D0 Lifetime Using B D0 To J Psi K0 S Decays At Dzero

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Author : Paul W. Balm
language : en
Publisher:
Release Date : 2004

Measurement Of The B D0 Lifetime Using B D0 To J Psi K0 S Decays At Dzero written by Paul W. Balm and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

This thesis describes a measurement of the B{sub d}{sup 0} lifetime in the decay to (J/{psi}K{sub S}{sup 0}), using 114 pb{sup -1} of data collected by the D0 experiment at the Tevatron from October 15, 2002, to June 10, 2003. The measurement is motivated by the tests of the Standard Model that it makes possible. These include tests of Heavy Quark Effective Theory predicting B-meson lifetimes, and of the complex phase in the CKM-matrix as the source of CP-violation in B{sub d}{sup 0} decays to (J/{psi}K{sub S}{sup 0}).