Tovarišč Moskva PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Tovarišč Moskva PDF full book. Access full book title Tovarišč Moskva by . Download full books in PDF and EPUB format.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 396
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 396
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
The authors present a preliminary measurement of time-dependent CP-violating asymmetries in B[sup 0][yields] J/[psi]K[sub s][sup 0] and B[sup 0][yields][psi](2S)K[sub s][sup 0] decay recorded by the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The data sample consists of 9.0 fb[sup -1] collected at the[Upsilon](4S) resonance and 0.8 fb[sup -1] off-resonance. One of the neutral B mesons, produced in pairs at the[Upsilon](4S), is fully reconstructed. The flavor of the other neutral B meson is tagged at the time of its decay, mainly with the charge of identified leptons and kaons. The time difference between the decays is determined by measuring the distance between the decay vertices. Wrong-tag probabilities and the time resolution function are measured with samples of fully-reconstructed semileptonic and hadronic neutral B final states. The value of the asymmetry amplitude, sin2[beta], is determined from a maximum likelihood fit to the time distribution of 120 tagged B[sup 0][yields] J/[psi]K[sub s][sup 0] and B[sup 0][yields][psi](2S)K[sub s][sup 0] candidates: sin2[beta]= 0.12[+-] 0.37 (stat)[+-] 0.09 (syst).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: A. Hoecker
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
We report on preliminary measurements of time-dependent CP asymmetries in neutral B decays to CP eigenstates with transition amplitudes that are dominated by penguin-type loops. The results are obtained from a data sample of up to 227 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B-meson Factory at SLAC. The amplitudes of the effective mixing-induced CP asymmetries, sin2{beta}{sub eff}, are derived from decay-time distributions of events in which one neutral B meson is fully reconstructed in a final state without charm and the other B meson is determined to be either a B{sup 0} or {bar B}{sup 0} from its decay products.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Vincent A. Lillard
Publisher:
ISBN:
Category : CP violation (Nuclear physics)
Languages : en
Pages : 171
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Get Book Here
Book Description
The BABAR experiment at SLAC provides an opportunity for measurement of CP violation in B decays. A measurement of time-dependent CP violating asymmetries using exclusive B meson decays where the b quark decays to c{bar c}d (including B° 2!D*D*− and B° 2!D*{sup ±}D{sup {-+}} decays) is presented here. This is the first measurement of CP violation in a mode sensitive to the Unitarity Triangle parameter sin2[beta] outside of decays containing charmonium. It provides a comparison to measurements of sin2[beta] using b 2!c{bar c}s, and permits an observation into potential new physics sources of CP violation, such as supersymmetry, via differences between these measurements and those of B° 2!J/[psi] K{sub S}° as statistics of reconstructed neutral B decays to D{sup (*)+} D{sup (*)-} increase. The measured value of the time-dependent CP violating asymmetries are: S = 0.38 ± 0.88(stat) ± 0.12(syst) and C = -0.30 ± 0.50(stat) ± 0.13(syst) for B° 2!D*− D; S = -0.43 ± 1.41(stat) ± 0.23(syst) and C = 0.53 ± 0.74(stat) ± 0.15(syst) for B° 2!D*+ D−; and S = -0.05 ± 0.45(stat) ± 0.05(syst) and C = 0.12 ± 0.30(stat) {+-} 0.05(syst) for B° 2!D*− D+; where S corresponds to CP violation in the interference of mixing and decay and C corresponds to CP violation in decay.
Author: G. Mancinelli
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
We present preliminary measurements of CP-violating asymmetries in B decays. These include new results on the CKM angle {alpha} based on studies of the decay B {yields} {rho}{sup +}{rho}{sup -} and several charmonium and hadronic penguin modes, sensitive to the CKM angle {beta}, including results on B {yields} {phi}K{sub S}{sup 0}, B {yields} K{sup +}K{sup -}K{sup 0}, B {yields} {eta}{prime} K{sub S}{sup 0}, B {yields} f{sub 0}K{sub S}{sup 0}, and B {yields} {pi}{sup 0} K{sub S}{sup 0}. We also report on several of results related to the extraction of {gamma} and (2{beta} + {gamma}) and present limits on CPT violation in B decays.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
The BABAR detector at the PEP-II asymmetric B Factory at SLAC collected a sample of 23 x 10[sup 6] B[bar B] pairs in the years 1999 and 2000. Using this data sample, we measure the amplitude of the time-dependent CP-violating asymmetry in neutral B decays to the CP eigenstates J/[psi] K[sub S][sup 0], [psi](2S) K[sub S][sup 0] and J/[psi] K[sub L][sup 0]. We find a value of sin2[beta]= 0.34[+-] 0.20(stat)[+-] 0.05(syst). We also present preliminary measurements of the B[sup 0][bar B][sup 0] oscillation frequency and of the lifetimes of charged and neutral B mesons.
