Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
The authors report the results of a study of the decays B 2!J/[psi][omega]K and B° 2!J/[psi][omega]K{sub S}° using 383 million B{bar B} events from [Upsilon](4S) decays with the BABAR detector at the PEP-II asymmetric-energy e+e− storage rings. They observe evidence for Y(3940) 2!J/[psi][omega] with product branching fractions [Beta](B+ 2!Y K+, Y 2!J/[psi][omega]) = (4.9 ± 1.0(stat) ± 0.5(syst)) x 10−5 and [Beta](B° 2!Y K°, Y 2!J/[psi][omega]) = (1.5{sub -1.2}{sup +1.4}(stat){sub -0.2}{sup +0.2}(syst)) x 10−5. The measured mass and width are M(Y) = (3914.6{sub -3.4}{sup +3.8}(stat){sub -1.9}{sup +1.9}(syst)) MeV/c2 and [Lambda](Y) = (33−{sup +12}(stat)−5{sup +5}(syst)) MeV, respectively.
Observation of Y(3940) to J/psi Omega in B to J/psi Omega K at BABAR.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
The authors report the results of a study of the decays B 2!J/[psi][omega]K and B° 2!J/[psi][omega]K{sub S}° using 383 million B{bar B} events from [Upsilon](4S) decays with the BABAR detector at the PEP-II asymmetric-energy e+e− storage rings. They observe evidence for Y(3940) 2!J/[psi][omega] with product branching fractions [Beta](B+ 2!Y K+, Y 2!J/[psi][omega]) = (4.9 ± 1.0(stat) ± 0.5(syst)) x 10−5 and [Beta](B° 2!Y K°, Y 2!J/[psi][omega]) = (1.5{sub -1.2}{sup +1.4}(stat){sub -0.2}{sup +0.2}(syst)) x 10−5. The measured mass and width are M(Y) = (3914.6{sub -3.4}{sup +3.8}(stat){sub -1.9}{sup +1.9}(syst)) MeV/c2 and [Lambda](Y) = (33−{sup +12}(stat)−5{sup +5}(syst)) MeV, respectively.
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
The authors report the results of a study of the decays B 2!J/[psi][omega]K and B° 2!J/[psi][omega]K{sub S}° using 383 million B{bar B} events from [Upsilon](4S) decays with the BABAR detector at the PEP-II asymmetric-energy e+e− storage rings. They observe evidence for Y(3940) 2!J/[psi][omega] with product branching fractions [Beta](B+ 2!Y K+, Y 2!J/[psi][omega]) = (4.9 ± 1.0(stat) ± 0.5(syst)) x 10−5 and [Beta](B° 2!Y K°, Y 2!J/[psi][omega]) = (1.5{sub -1.2}{sup +1.4}(stat){sub -0.2}{sup +0.2}(syst)) x 10−5. The measured mass and width are M(Y) = (3914.6{sub -3.4}{sup +3.8}(stat){sub -1.9}{sup +1.9}(syst)) MeV/c2 and [Lambda](Y) = (33−{sup +12}(stat)−5{sup +5}(syst)) MeV, respectively.
Study of B -,0 -] J/Psi K K-K -,0 and Search for B0 -] J/Psi Phi at Babar
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
A BABAR Sensitivity Study on the Search for the Invisible Decay of J/psi in B+/- Mesons Going to K*+/- J/psi
Author: Racha Cheaib
Publisher:
ISBN: 9780494839188
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN: 9780494839188
Category :
Languages : en
Pages :
Book Description
Observation of the Narrow State X (3872) --] J/psi Pi+ Pi- in Pbar P Collisions at S**(1/2)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Observation of the Omega(b)- Baryon and Measurement of the Properties of the Xi(b)- and Omega(b)- Baryons
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 17
Book Description
The authors report the observation of the bottom, doubly-strange baryon?{sub b}− through the decay chain?{sub b}− → J/??−, where J/? →??−,?− →?K−, and? → p?−, using 4.2 fb−1 of data from p{bar p} collisions at √s = 1.96 TeV, and recorded with the Collider Detector at Fermilab. A signal is observed whose probability of arising from a background fluctuation is 4.0 x 10−8, or 5.5 Gaussian standard deviations. The?{sub b}− mass is measured to be 6054.4 ± 6.8(stat.) ± 0.9(syst.) MeV/c2. The lifetime of the?{sub b}− baryon is measured to be 1.13{sub -0.40}{sup +0.53}(stat.) ± 0.02(syst.) ps. In addition, for the?{sub b}− baryon they measure a mass of 5790.9 ± 2.6(stat.) ± 0.8(syst.) MeV/c2 and a lifetime of 1.56{sub -0.25}{sup +0.27}(stat.) ± 0.02(syst.) ps.
Publisher:
ISBN:
Category :
Languages : en
Pages : 17
Book Description
The authors report the observation of the bottom, doubly-strange baryon?{sub b}− through the decay chain?{sub b}− → J/??−, where J/? →??−,?− →?K−, and? → p?−, using 4.2 fb−1 of data from p{bar p} collisions at √s = 1.96 TeV, and recorded with the Collider Detector at Fermilab. A signal is observed whose probability of arising from a background fluctuation is 4.0 x 10−8, or 5.5 Gaussian standard deviations. The?{sub b}− mass is measured to be 6054.4 ± 6.8(stat.) ± 0.9(syst.) MeV/c2. The lifetime of the?{sub b}− baryon is measured to be 1.13{sub -0.40}{sup +0.53}(stat.) ± 0.02(syst.) ps. In addition, for the?{sub b}− baryon they measure a mass of 5790.9 ± 2.6(stat.) ± 0.8(syst.) MeV/c2 and a lifetime of 1.56{sub -0.25}{sup +0.27}(stat.) ± 0.02(syst.) ps.
Observation of an Excited Charm Baryon Omega^*_C Decaying to Omega^0_C Gamma
Author: B. Aubert
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
The authors report the first observation of an excited singly-charmed baryon {Omega}*{sub c} (css) in the radiative decay {Omega}{sub c}{sup 0}{gamma}, where the {Omega}{sub c}{sup 0} baryon is reconstructed in the decays to the final states {Omega}{sup -}{pi}{sup +}, {Omega}{sup -} {pi}{sup +}{pi}{sup 0}, {Omega}{sup -}{pi}{sup +}{pi}{sup -}{pi}{sup +}, and {Xi}{sup -} K{sup -} {pi}{sup +}{pi}{sup +}. This analysis is performed using a dataset of 230.7 fb{sup -1} collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center. The mass difference between the {Omega}*{sub c} and the {Omega}{sub c}{sup 0} baryons is measured to be 70.8 {+-} 1.0(stat) {+-} 1.1(syst) MeV/c{sup 2}. They also measure the ratio of inclusive production cross sections of {Omega}*{sub c} and {Omega}{sub c}{sup 0} in e{sup +}e{sup -} annihilation.
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
The authors report the first observation of an excited singly-charmed baryon {Omega}*{sub c} (css) in the radiative decay {Omega}{sub c}{sup 0}{gamma}, where the {Omega}{sub c}{sup 0} baryon is reconstructed in the decays to the final states {Omega}{sup -}{pi}{sup +}, {Omega}{sup -} {pi}{sup +}{pi}{sup 0}, {Omega}{sup -}{pi}{sup +}{pi}{sup -}{pi}{sup +}, and {Xi}{sup -} K{sup -} {pi}{sup +}{pi}{sup +}. This analysis is performed using a dataset of 230.7 fb{sup -1} collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center. The mass difference between the {Omega}*{sub c} and the {Omega}{sub c}{sup 0} baryons is measured to be 70.8 {+-} 1.0(stat) {+-} 1.1(syst) MeV/c{sup 2}. They also measure the ratio of inclusive production cross sections of {Omega}*{sub c} and {Omega}{sub c}{sup 0} in e{sup +}e{sup -} annihilation.
A Matter of Choices
Author: Fay Ajzenberg-Selove
Publisher: Rutgers University Press
ISBN: 9780813520353
Category : Biography & Autobiography
Languages : en
Pages : 260
Book Description
When the author became a nuclear physicist, the number of women in the field could be counted on one hand. In this memoir, she reveals her difficult journey to international recognition in physics. She is frank about the ways being a woman has made a difference in her opportunities and choices as a scientist--and how, by being a woman, she has made a difference in the world of physics.
Publisher: Rutgers University Press
ISBN: 9780813520353
Category : Biography & Autobiography
Languages : en
Pages : 260
Book Description
When the author became a nuclear physicist, the number of women in the field could be counted on one hand. In this memoir, she reveals her difficult journey to international recognition in physics. She is frank about the ways being a woman has made a difference in her opportunities and choices as a scientist--and how, by being a woman, she has made a difference in the world of physics.
QCD as a Theory of Hadrons
Author: S. Narison
Publisher: Cambridge University Press
ISBN: 9780521811644
Category : Science
Languages : en
Pages : 820
Book Description
An introduction to the basic theory and recent advances in QCD, for graduates and researchers.
Publisher: Cambridge University Press
ISBN: 9780521811644
Category : Science
Languages : en
Pages : 820
Book Description
An introduction to the basic theory and recent advances in QCD, for graduates and researchers.
Qcd Spectral Sum Rules
Author: Stephan Narison
Publisher: World Scientific
ISBN: 9814507547
Category : Science
Languages : en
Pages : 545
Book Description
The aim of the book is to give an introduction to the method of QCD Spectral Sum Rules and to review its developments. After some general introductory remarks, Chiral Symmetry, the Historical Developments of the Sum Rules and the necessary materials for perturbative QCD including the MS regularization and renormalization schemes are discussed. The book also gives a critical review and some improvements of the wide uses of the QSSR in Hadron Physics and QSSR beyond the Standard Hadron Phenomenology. The author has participated actively in this field since 1978 just before the expanding success of the SVZ QSSR.
Publisher: World Scientific
ISBN: 9814507547
Category : Science
Languages : en
Pages : 545
Book Description
The aim of the book is to give an introduction to the method of QCD Spectral Sum Rules and to review its developments. After some general introductory remarks, Chiral Symmetry, the Historical Developments of the Sum Rules and the necessary materials for perturbative QCD including the MS regularization and renormalization schemes are discussed. The book also gives a critical review and some improvements of the wide uses of the QSSR in Hadron Physics and QSSR beyond the Standard Hadron Phenomenology. The author has participated actively in this field since 1978 just before the expanding success of the SVZ QSSR.
The Quark Model
Author: J. J. J. Kokkedee
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 266
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 266
Book Description