Measurement Of Ratios Of Branching Fractions And Cp Violating Asymmetries Of B D K Decays

DOWNLOAD

Download Measurement Of Ratios Of Branching Fractions And Cp Violating Asymmetries Of B D K Decays PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Measurement Of Ratios Of Branching Fractions And Cp Violating Asymmetries Of B D K 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. If the content not found or just blank you must refresh this page

Measurement Of Ratios Of Branching Fractions And Cp Violating Asymmetries Of B D K Decays

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2008

Measurement Of Ratios Of Branching Fractions And Cp Violating Asymmetries Of B D K 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.

The authors report a study of B{sup ±} 2!D*K{sup ±} decays with D* decaying to D[pi]° or D[gamma], using 383 x 106 B{bar B} pairs collected at the [Upsilon](4S) resonance with the BABAR detector at the SLAC PEP-II B-Factory. The D meson decays under study include a non-CP mode (K{sup ±}[pi]{sup {-+}}), CP-even modes (K{sup ±}K{sup {-+}}, [pi]{sup ±}[pi]{sup {-+}}) and CP-odd modes (K{sub S}°[pi]°, K{sub S}°[phi], K{sub S}°[omega]). They measure ratios (R*{sub CP±}) of branching fractions of decays to CP eigenmode states and to flavor-specific states as well as CP asymmetries A*{sub CP±} = -0.11 ± 0.09 ± 0.01, R*{sub CP+} = 1.31 ± 0.13 ± 0.04, and A*{sub CP-} = 0.06 ± 0.10 {+-} 0.02, R*{sub CP-} = 1.10 {+-} 0.12 {+-} 0.04, where the first error is statistical and the second error is systematic. Translating the results into an alternative parameterization, widely used for related measurements, they obtain x*+ = 0.11 {+-} 0.06 {+-} 0.02 and x* = 0.00 {+-} 0.06 {+-} 0.01. No significant CP-violating charge asymmetry is found in either the flavor-specific mode D 2!K{sup {+-}}[pi]{sup {-+}} or in B{sup {+-}} 2!D*[pi]{sup {+-}} decays.

Physics Briefs

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1992

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 1992 with Physics categories.

Measurements Of Branching Fraction Ratios And Cp Asymmetries In Suppressed B 2 D 2 K Pi K And B 2 D 2 K Pi Pi Decays

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2011

Measurements Of Branching Fraction Ratios And Cp Asymmetries In Suppressed B 2 D 2 K Pi K And B 2 D 2 K Pi Pi 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 2011 with categories.

We report the first reconstruction in hadron collisions of the suppressed decays B-2!D(2!K+[pi]- )K- and B-2!D(2!K+[pi]- )[pi]- decays, sensitive to the CKM phase [gamma], using data from 7 fb-1 of integrated luminosity collected by the CDF II detector at the Tevatron collider. We reconstruct a signal for the B-2!D(2!K+[pi]- )K- suppressed mode with a significance of 3.2 standard deviations, and measure the ratios of the suppressed to favored branching fractions R(K) = [22.0 " 8.6(stat) " 2.6(syst)] x 10-3, R+(K) = [42.6 " 13.7(stat) " 2.8(syst)] x 10-3, R-(K) = [3.8 " 10.3(stat) " 2.7(syst)] x 10-3 as well as the direct CP-violating asymmetry A(K) = -0.82"0.44(stat)"0.09(syst) of this mode. Corresponding quantities for B- 2!D(2!K+[pi]- )[pi]- decay are also reported.

Measurements Of Branching Fractions And Cp Violating Asymmetries In B Meson Decays To The Charmless Two Body States K Sup 0 Pi K Bar Sup 0 K Sup And K Sup 0 K Bar Sup 0

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2004

Measurements Of Branching Fractions And Cp Violating Asymmetries In B Meson Decays To The Charmless Two Body States K Sup 0 Pi K Bar Sup 0 K Sup And K Sup 0 K Bar Sup 0 written by 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.

The authors present preliminary measurements of the branching fraction and the CP-violating charge asymmetry in the B[sup +] --> K[sup 0][pi][sup +] decay, and a preliminary measurement of the branching fraction of the B[sup 0] --> K[sup 0][bar K][sup 0] decay. No evidence of direct CP violation in the B[sup +] --> K[sup 0][pi][sup +] mode is observed. The B[sup 0] --> K[sup 0][bar K][sup 0] measurement constitutes the first observation of this decay channel: the probability of obtaining the result assuming the null-signal hypothesis is 3.4 x 10[sup -6]. The authors have also searched for the B[sup +] --> [bar K][sup 0]K[sup +] decay and set an upper limit on its branching fraction at 2.35 x 10[sup -6] at the 90% C.L. The branching-fraction measurements reported here are consistent with previous measurements of the same quantities, but are extracted from a data sample larger by a factor of 2.6.

Measurement Of Branching Fractions And Cp Violating Asymmetries In B0 U2192 K0 Bar K 0 And B To Bar K 0k Decays At The Babar Experiment

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2007

Measurement Of Branching Fractions And Cp Violating Asymmetries In B0 U2192 K0 Bar K 0 And B To Bar K 0k Decays At The Babar Experiment 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 last few years, the B factories have established the Cabbibo-Kobayashi-Maskawa mechanism of CP violation in the Standard Model through the study of the decays of B mesons. The focus of Belle and BaBar has now expanded to the search for signatures of new physics beyond the Standard Model, particularly through examination of flavor-changing neutral-current transitions, which proceed through diagrams involving virtual loops. These decays are suppressed in the Standard Model, increasing sensitivity to new-physics effects but decreasing branching fractions. Exploiting large and growing datasets, BaBar and Belle have made many measurements in loop decays where a b quark transitions to an s quark, observing hints of possible deviations from Standard Model expectations in CP-violating measurements.

Measurement Of The Branching Fraction And Cp Violating Asymmetries In Neutral B Decays To D Sup D Sup

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2003

Measurement Of The Branching Fraction And Cp Violating Asymmetries In Neutral B Decays To D Sup D Sup written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

The authors present measurements of the branching fraction and CP-violating asymmetries for neutral B decays to D*{sup ±} D{sup {-+}}. The measurement uses a data sample for approximately 88 million [Upsilon](4S) 2!B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. They measure the branching fraction to be (8.8 ± 1.0 ± 1.3) x 10−4 and the time-integrated CP-violating asymmetry between the rates to D*− D and D* D− to be [Alpha] = -0.03 ± 0.11 ± 0.05. They also measure the time-dependent CP-violating asymmetry parameters to be S{sub -+} = -0.24 ± 0.69 ± 0.12, C{sub -+} = -0.22 ± 0.37 ± 0.10 for B 2!D*− D+ and S{sub +-} = -0.82 ± 0.75 ± 0.14, C{sub +-} = -0.47 ± 0.40 {+-} 0.12 for B 2!D*+ D−. In each case the first error is statistical and the second error is systematic.

A Measurement Of The Branching Fractions And Cp Asymmetries Of The Decays B U2192 K 0 And B U2192 0 At Babar

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2005

A Measurement Of The Branching Fractions And Cp Asymmetries Of The Decays B U2192 K 0 And B U2192 0 At Babar written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

Measurements of the branching fractions (average over charge-conjugate decays), B, and CP violating asymmetries, ACP, of the decays B± → K*±?0 and B± → ?±?0 are presented.

Measurement Of Branching Fraction Ratios And Cp Asymmetries In B D0 Cpk Decays With The Babar Detector

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2010

Measurement Of Branching Fraction Ratios And Cp Asymmetries In B D0 Cpk Decays With The Babar Detector written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

The primary goals of the BABAR experiment are the detection of CP violation (CPV) in the B meson system, the precise measurement of some of the elements of the CKM matrix and the measurement of the rates of rare B meson decays. At present, BABAR has achieved major successes: (1) the discovery, in neutral B decays, of direct and mixing-induced CP violation; (2) accurate measurements of the magnitudes of the CKM matrix elements.

Measurements Of Cp Violating Asymmetries And Branching Fractions In B Meson Decays To Eta K

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2003

Measurements Of Cp Violating Asymmetries And Branching Fractions In B Meson Decays To Eta K written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

Measurements Of Branching Fractions And Time Dependent Cp Violating Asymmetries In B To Eta K Decays

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2005

Measurements Of Branching Fractions And Time Dependent Cp Violating Asymmetries In B To Eta K 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 2005 with categories.