Probing the Symmetry of Nature. (CP Violation in B-J [over Psi K Sub L] Decays)
Author : Kirill Korotushenko
Publisher :
Page : 374 pages
File Size : 23,47 MB
Release : 2004
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A Study of $B \to J/\psi K{̂(*)} 0 X$ Decays
Author :
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Page : 136 pages
File Size : 31,48 MB
Release : 2001
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Book Description
Study of the B- --] J/psi K- Pi+ Pi- Decay and Measurement of the B- --] X(3872) K- Branching Fraction
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Page : pages
File Size : 19,83 MB
Release : 2004
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Book Description
The authors study the decay B[sup -] [yields] J/[psi]K[sup -][pi][sup +][pi][sup -] using 117 million B[bar B] events collected at the [Upsilon](4S) resonance with the BaBar detector at the PEP-II e[sup +]e[sup -] asymmetric-energy storage ring. They measure the branching fractions [Beta](B[sup -] [yields] J/[psi]K[sup -] [pi][sup +][pi][sup -]) = (116 [+-] 7(stat.) [+-] 9(syst.)) x 10[sup -5] and [Beta](B[sup -] [yields] X(3872)K[sup -]) x [Beta](X(3872) [yields] J/[psi][pi][sup +][pi][sup -]) = (1.28 [+-] 0.41) x 10[sup -5] and find the mass of the X(3872) to be 3873.4 [+-] 1.4MeV/c[sup 2]. They search for the h[sub c] narrow state in the decay B[sup -] [yields] h[sub c] K[sup -], h[sub c] [yields] J/[psi][pi][sup +][pi][sup -] and for the decay B[sup -] [yields] J/[psi]D[sup 0][pi][sup -], with D[sup 0] [yields] K[sup -][pi][sup +]. They set the 90% C.L. limits [Beta](B[sup -] [yields] h[sub c]K[sup -]) x [Beta](h[sub c] [yields] J/[psi][pi][sup +][pi][sup -])
A Study of B+/- --] J/psi Pi+/- and B+/- --] J/psi K+/- Decays
Author :
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Page : 5 pages
File Size : 19,13 MB
Release : 2002
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Book Description
We have studied the B{sup ±} → J/[psi][pi]{sup ±} and B{sup ±} → J/[psi] K{sup ±} decays using a 20.7 fb−1 data set collected with the BABAR detector. We observe a signal of 51 ± 10 B{sup ±} → J/[psi][pi]{sup ±} events and determine the ratio [Beta](B{sup {+-}} → J/[psi][pi]{sup {+-}})/[Beta](B{sup {+-}} → J/[psi] K{sup {+-}}) to be [3.91 {+-} 0.78(stat.) {+-} 0.19(syst.)]%. The CP-violating charge asymmetries for the B{sup {+-}} → J/[psi] [pi]{sup {+-}} and B{sup {+-}} → J/[psi] K{sup {+-}} decays are determined to be [Alpha]{sub {pi}} = 0.01 {+-} 0.22(stat.) {+-} 0.01(syst.) and [Alpha]{sub K} = 0.003 {+-} 0.030(stat.) {+-} 0.004(syst.).
A Study of B[right Arrow]J/[psi]K(*)0X Decays
Author : Stephen John Bailey
Publisher :
Page : 101 pages
File Size : 12,11 MB
Release : 2001
Category : B mesons
ISBN :
Book Description
Study of B{sup {+-}} 2!J/[psi] [pi]{sup {+-}} and B{sup {+-}} 2!J/[psi] K{sup {+-}} Decays
Author :
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Page : 7 pages
File Size : 50,91 MB
Release : 2004
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Book Description
The authors study B{sup ±} → J/[psi] [pi]{sup ±} and B{sup ±} → J/[psi] K{sup ±} decays in a sample of about 89 million B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric B-factory at SLAC. They observe a signal of 244 ± 20 B{sup ±} → J/[psi] [pi]{sup ±} events and determine the ratio [Beta](B{sup {+-}} → J/[psi] [pi]{sup {+-}})/[Beta](B{sup {+-}} → J/[psi] K{sup {+-}}) to be [5.37 {+-} 0.45(stat.) {+-} 0.11(syst.)]%. The charge asymmetries for the B{sup {+-}} → J/[psi] [pi]{sup {+-}} and B{sup {+-}} → J/[psi] K{sup {+-}} decays are determined to be [Alpha]{sub {pi}} = 0.123 {+-} 0.085(stat.) {+-} 0.004(syst.) and [Alpha]{sub K} = 0.030 {+-} 0.015(stat.) {+-} 0.006(syst.), respectively.
Study of the $\psi_2(3823)$ and $\chi_c1}(3872)$ States in $B^+ \rightarrow \left( J\psi\pi^+\pi^-\right)K^+$ Decays
Author : Roel Aaij
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Page : 0 pages
File Size : 35,76 MB
Release : 2020
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Book Description
Kul'tura Turkmenii v srednie veka
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Page : pages
File Size : 32,16 MB
Release : 1980
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Book Description
Study of Direct CP Violation in B+- ---] J/psi K+- (pi+- ) File Decays
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Page : 7 pages
File Size : 38,78 MB
Release : 2008
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Book Description
The authors present a search for direct CP violation in B{sup ±} 2!J/[psi]K{sup ±}[pi]{sup ±} decays. The event sample is selected from 2.8 fb−1 of p{bar p} collisions recorded by D0 experiment in Run II of the Fermilab Tevatron Collider. The charge asymmetry A{sub CP}(B 2!J/[psi]K) = +0.0075 ± 0.0061(stat.) {+-} 0.0027(syst.) is obtained using a sample of approximately 40 thousand B{sup {+-}} 2!J/[psi]K{sup {+-}} decays. The achieved precision is of the same level as the expected deviation predicted by some extensions of the standard model. They also measured the charge asymmetry A{sub CP}(B+ 2!J/[psi][pi]+) = -0.09 {+-} 0.08(stat.){+-}0.03(syst.).
An Analysis of the K+[pi]+[pi]− Final State in B+ [right Arrow] J/[psi] K+[pi]+[pi]− and B+ [right Arrow] [psi]ʹ K+[pi]+[pi]−
Author : Hulya Guler
Publisher :
Page : 236 pages
File Size : 39,79 MB
Release : 2008
Category : B mesons
ISBN :
Book Description
Inclusive branching ratios have been measured for the decays B+ [right arrow] J/psi K+pi+pi− and B+ [right arrow] psiʹ K+pi+pi− using 492 fb−1 of data collected at the [Upsilon](4S) resonance by the Belle detector at KEKB. Three-dimensional amplitude analyses have been performed to study the resonant structure of the K+pi+pi− final state in these decay modes.
