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Languages : en
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Between 1992 to 1996, the CDF experiment has collected a data sample of 110 pb−1 of p{bar p} collisions at (square root)s = 1.8 TeV at the Fermilab Tevatron. In the year 2001 the Tevatron will commence p{bar p} collisions again at (square root)s = 2.0 TeV delivering an integrated luminosity of 1 fb−1 per year. In the mean time the CDF detector will have undergone substantial upgrades which will allow for a rich B physics program with unique capabilities. In this paper we discuss the B physics prospects at CDF with the data that will be collected during this upcoming Tevatron run.
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Languages : en
Pages : 0
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Languages : en
Pages : 5
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With extensive upgrades to the detector and electronics, CDF has started collecting data with Run II of the Tevatron. The enhanced silicon coverage and the use of silicon based tracks in the trigger, make CDF well suited for a broad program of B hadron measurements. We present the current status of the experiment and prospects for measurements in Run II.
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Languages : en
Pages : 7
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Current CDF b-physics results are presented. The analysis is based on data corresponding to an integrated luminosity of 4.4 pb−1 recorded with the CDF detector in 88--89 at the Fermilab Tevatron p{bar p} collider (√{bar s} = 1.8 TeV). Preliminary results include the differential cross section {sub dPt}/{sup d{sigma}(b)}, some reconstructed exclusive B-decays, a limit for the rare decay B° →??− and a measurement of B{bar B}-mixing parameters. Finally we will discuss the prospects concerning b-physics for the next data run which will start in February 1992. 12 refs., 8 figs.
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Languages : en
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In March 2001, the Fermilab Tevatron will start a new physics run of p{bar p} collisions at (square root)s = 2.0 TeV. The CDF experiments will collect a data sample of 2 fb−1 in the first two years. In this paper the authors describe the B physics prospects at CDF during the upcoming run.
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Languages : en
Pages : 15
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B-physics results from the CDF Collaboration based on data collected during the Tevatron run 1A and 1B are presented. In particular we discuss the measurements of B meson masses and lifetimes, the limits set on rare B decay branching ratios and B{sub o}{bar B}{sub o} mixing results obtained with both time-integrated and time-evolution analysis. We use the current results to extrapolate CDF B-physics prospects to the end of run 1 and to the future high luminosity run II.
Author: Thomas E Browder
Publisher: World Scientific
ISBN: 9814602760
Category :
Languages : en
Pages : 528
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CP violation is one of the most subtle effects in the Standard Model of particle physics and may be the first clue to the physics that lies beyond. Charge conjugation, C, and parity, P, are symmetries of particle interactions. C corresponds to the operation of replacing a particle by its antiparticle, while P is the operation of mirror reflection. Before 1956, it was believed that these were also symmetries of the interactions of elementary particles. In 1956, C S Wu found evidence for P violation in the weak interaction. Theorists proposed that the combination of CP would be a symmetry of the weak interaction. In 1964, Christenson, Cronin, Fitch and Turlay found the first evidence for the violation of CP symmetry in the decays of kaons.Although Kobayashi and Maskawa then showed how the Standard Model can accommodate the observed CP violation, Wolfenstein pointed out that it is also possible that there is a new interaction in addition to the usual four, called the superweak interaction, which is responsible for the asymmetry. To test this idea, the observation of a different type of asymmetry, called direct CP violation, is required; in the kaon sector, very precise measurements of the ratio of kaon decay rates are necessary. In B decay modes where a second order weak process whimisically named “penguin” interferes with another suppressed, first order “tree” amplitude, it may also be possible to observe these direct CP-violating effects.B physics and CP violation is now one of the major growth areas in high energy physics. Nearly every major high energy physics laboratory now has a project underway to observe the large CP asymmetries expected in the B sector and to test the consistency of the Standard Model. The unitarity of the Kobayashi-Maskawa mixing matrix in the Standard Model implies the existence of three phases, called alpha, beta and gamma, which can be determined by the measurements of CP asymmetries in B decays. About 200 participants gathered in Hawaii in March 1997 to discuss the progress in the field, and this important book constitutes the proceedings of that conference.
Author: T Ohshima
Publisher: World Scientific
ISBN: 9814490776
Category : Science
Languages : en
Pages : 392
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This book offers the first strong evidence of the existence of CP violation in neutral B decays extracted from sophisticated B factories in the US and Japan. It also holds out the expectation of rare B decays and D, K physics in the near future. In addition, new physics beyond the Standard Model is described. Both experimental and theoretical points of view are given.
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Languages : en
Pages : 12
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B physics results from the CDF Collaboration based on data collected during the 1992-1996 Tevatron run are presented. In particular, we report the discovery of the B{sub c} meson in the semileptonic decay B{sub c} → J/[psi]l[nu]X, updates of b hadrons lifetime measurements, with a description of the B{sub s} lifetime measurement, the B°{sub d} - {anti B}°{sub d} mixing results and the limits set on rare B decay branching ratios. Current results are used to extrapolate B physics prospects for the future high luminosity run II.
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Languages : en
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Collection contains clipping file.
