Measurements Of The Cp Violation Parameter Sin 2 Beta In Bsuperscipt 0 Right Arrow J Psik0 Over S Decays
Download Measurements Of The Cp Violation Parameter Sin 2 Beta In Bsuperscipt 0 Right Arrow J Psik0 Over S Decays PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Measurements Of The Cp Violation Parameter Sin 2 Beta In Bsuperscipt 0 Right Arrow J Psik0 Over S Decays book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages.
Measurements of the CP-violation Parameter Sin(2 Beta) in B[superscipt 0] [right Arrow] J/[psi]K[0 Over S] Decays
![Measurements of the CP-violation Parameter Sin(2 Beta) in B[superscipt 0] [right Arrow] J/[psi]K[0 Over S] Decays](https://library.ardhindie.com/contents/assets/images/blank.png){kind=small}
In the 110 pb[sup -1] Run I data sample, using three complementary flavor-tagging algorithms CDF has made a new measurement of the CP-violating asymmetry sin(2[beta])=0.79[sup +0.41][sub -0.44], This corresponds to the limit sin(2[beta])>-0.08 at 95% confidence level. This result agrees well with predictions from indirect constraints based on fits of elements of the CKM matrix.
Measurement of the CP Violation Parameter Sin(2[beta] in B[sup 0][r-arrow]J/[psi] K[sub S][sup 0] Decays
A sample of[approximately] 400 B[sub d][sup 0]/[bar B][sub d][sup 0][r-arrow] J/[psi]K[sub s][sup 0] decays collected in[bar p]p collisions by the CDF detector is used to directly measure the CP-violation parameter sin (2[beta]). They find sin(2[beta])= 0.79[sub[minus]0.44][sup+ 0.41], favoring the standard model expectation of a large CP violation in this B[sup 0] decay mode.
Measurement of the CP Violating Phase $\boldsymbol{\sin(2\beta_{s})}$ Using $\boldsymbol{B{̂0}_{s}\rightarrow J/\psi\phi}$ Decays at CDF.
A B0 s meson can oscillate into its anti-particle, the $ar{B}$0 s meson, before decaying. CP violation in this system is made possible by the presence of amplitudes from both mixed and unmixed B0 s meson decays. The CP violating phase ?s appears in the interference between the decay amplitudes. The quantity sin(2?s) is expected to be small in the standard model. Thus, measuring a large value for sin(2?s) would be an unequivocal sign of new physics participation in the B0 s mixing loop diagram. In this thesis, we present a latest measurement of sin(2?s), using 5.2 fb-1 of data collected at CDF from p$ar{p}$ collisions at a center of mass energy of √s=1.96 TeV. A time-dependent angular analysis, with the production flavor of the B0 s meson identified with flavor tagging methods, is used to extract sin(2?s) from 6̃500 B0 s→ J/?? decays. Other parameters of interest, such as the B0 s lifetime and the decay width difference between the heavy and light B0 s mass eigenstates are determined to high precision. Also, the effect of potential contributions to the final state from B0 s → J/?f0 and B0 s→ J/?K+K- decays is considered for the first time. We present 68% and 95% confidence regions in the ?s plane. The probability that the observed central value is a fluctuation of the data from the standard model expected value of ?s is calculated to be 44%. The observed confidence region shows better agreement with the standard model prediction than previous measurements.