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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The CDF and D0 experiments at the Tevatron pp collider established that extensive and detailed exploration of the b-quark dynamics is possible in hadron collisions, with results competitive and supplementary to B-factories. In this paper we review the current state of Tevatron's heavy flavor measurements considering two main categories: searches for non standard model physics (results on rare decays and CP-violation) and determinations of standard model parameters (annihilation in B 2!hh− decays and? angle measurement through B 2!DK modes).
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The CDF and D0 experiments at the Tevatron pp collider established that extensive and detailed exploration of the b-quark dynamics is possible in hadron collisions, with results competitive and supplementary to B-factories. In this paper we review the current state of Tevatron's heavy flavor measurements considering two main categories: searches for non standard model physics (results on rare decays and CP-violation) and determinations of standard model parameters (annihilation in B 2!hh− decays and? angle measurement through B 2!DK modes).
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Starting in September 1999, a series of workshops was carried out to study the prospects for B physics at the Tevatron. There were four working groups covering CP Violation, Rare and Semileptonic Decays, Mixing and Lifetimes, as well as Production, Fragmentation and Spectroscopy. Upon the completion of a comprehensive written report summarizing the results of this workshop, we will review the highlights of B Physics at the Tevatron in Run II and beyond. On our way to this goal, we will pass by questions such as 'Why are there so many B factories these days?' or 'Why do we also want to do B Physics at Fermilab'.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
After a five year upgrade period, the Fermilab experiments CDF and D0 are taking high quality data in Run II of the Tevatron Collider. We report on the start-up of both detectors and present a selection of first B physics results from the Tevatron. We also compare different B hadron producers such as the [Upsilon](4S) with the hadron collider environment and discuss general features of B physics at a hadron collider.
Author: Publisher: ISBN: Category : Languages : en Pages : 11
Book Description
Precision B-physics results from the CDF and DO Collaborations based on data collected during the Tevatron 1992-96 run are presented. In particular we discuss the measurement of B hadron lifetimes, and B° - {anti B}° mixing results obtained using time- evolution analyses. Perspectives for the next Tevatron run, starting in 1999, are also reported.
Author: Publisher: ISBN: Category : Languages : en Pages : 4
Book Description
We present the B physics results from the CDF and D0 experiments at the Tevatron Run II at Fermilab and their future prospect. This includes various B mass and lifetime measurements, B mixing, the confirmation of the discovery of the X particle, rare decays, CP violation, and spectroscopy.
Author: George W. S. Hou Publisher: Springer ISBN: 3540927921 Category : Science Languages : en Pages : 151
Book Description
The ?avor sector carries the largest number of parameters in the Standard Model of particle physics. With no evident symmetry principle behind its existence, it is not as well understood as the SU(3)×SU(2)×U(1) gauge interactions. Yet it tends to be underrated, sometimes even ignored, by the erudite. This is especially so on the verge of the LHC era, where the exploration of the physics of electroweak symmetry breaking at the high energy frontier would soon be the main thrust of the ?eld. Yet, the question of “Who ordered the muon?” by I. I. Rabi lingers. We do not understand why there is “family” (or generation) replication. That three generations are needed to have CP violation is a partial answer. We do not understand why there are only three generations, but Nature insists on (just about) only three active neutrinos. But then the CP violation with three generations fall far short of what is needed to generate the baryon asymmetry of the Universe. We do not understand why most fermions are so light on the weak symmetry breaking scale (v. e. v. ), yet the third-generation top quark is a v. e. v. scale particle. We do not understand why quarks and leptons look so different, in particular, why neutrinos are rather close to being massless, but then have (at least two) near maximal mixing angles. We shall not, however, concern ourselves with the neutrino sector. It has a life of its own.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Between 1992 and 1996, the CDF and D0 experiments have collected data samples of 110 pb−1 each of p{bar p} collisions at (square root)s = 1.8 TeV at the Fermilab Tevatron. In the year 2001 the Tevatron commenced p{bar p} collisions again at (square root)s = 1.96 TeV with the goal of delivering an integrated luminosity of 1 fb−1 per year. In the mean time the CDF and D0 detectors have undergone substantial upgrades which allow for a rich B physics program with unique capabilities. In this paper we discuss recent results and the B Physics prospects at the Tevatron with 2 fb−1 of data (Run IIa) or 15 fb−1 of data (Run IIa+Run IIb).
Author: S. D'Auria Publisher: ISBN: Category : Languages : en Pages : 8
Book Description
We present experimental results on b-hadron mass measurements and b-meson oscillations based on integrated luminosity of 250 to 450 pb{sup -1} of p{bar p} collisions at {radical}s = 1.98 TeV by the CDF and D0 collaborations at the TeVatron. The masses of b-hadrons have been measured precisely by the CDF collaboration in decays containing a J/{psi}. A blind search of the decay mode B{sub c} {yields} J/{psi}{pi}{sup +} resulted in a peak of 18.9 {+-} 5.4 candidates at a mass value of 6287.0 {+-} 4.5 {+-} 1.1 MeV/c{sup 2}. A new limit has been set to the decay B{sub d, s} {yields} {mu}{sup +}{mu}{sup -}. Both the CDF and D0 collaborations are in the position to put a limit on the frequency of the B{sub s} oscillations. D0 reports {Delta}m{sub s}> 5.0 ps{sup -1}.
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Author: George W. S. Hou
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Author: S. D'Auria