Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
We study the reactions ee− 2!e+e− [eta]{sup (/)} in the single-tag mode and measure the [gamma][gamma]* 2![eta]{sup (/)} transition form factors in the momentum transfer range from 4 to 40 GeV2. The analysis is based on 469 fb−1 of integrated luminosity collected at PEP-II with the BABAR detector at e+e− center-of-mass energies near 10.6 GeV.
Measurement of the Gamma Gamma* --] Eta and Gamma Gamma* --] Eta' Transition Form Factors
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
We study the reactions ee− 2!e+e− [eta]{sup (/)} in the single-tag mode and measure the [gamma][gamma]* 2![eta]{sup (/)} transition form factors in the momentum transfer range from 4 to 40 GeV2. The analysis is based on 469 fb−1 of integrated luminosity collected at PEP-II with the BABAR detector at e+e− center-of-mass energies near 10.6 GeV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
We study the reactions ee− 2!e+e− [eta]{sup (/)} in the single-tag mode and measure the [gamma][gamma]* 2![eta]{sup (/)} transition form factors in the momentum transfer range from 4 to 40 GeV2. The analysis is based on 469 fb−1 of integrated luminosity collected at PEP-II with the BABAR detector at e+e− center-of-mass energies near 10.6 GeV.
Measurement of the Gamma Gamma* to Eta_c Transition Form Factor
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
The authors study the reaction ee− 2!ee− [eta]{sub c}, [eta]{sub c} 2!K{sub S}K{sup ±}[pi]{sup {-+}} and obtain [eta]{sub c} mass and width values 2982.2 ± 0.4 ± 1.6 MeV/c2 and 31.7 ± 1.2 ± 0.8 MeV, respectively. They find [Lambda]([eta]{sub c} 2![gamma][gamma])[Beta]([eta]{sub c} 2!K{bar K}[pi]) = 0.374 ± 0.009 {+-} 0.031 keV, and measure the [gamma][gamma]* 2![eta]{sub c} transition form factor in the momentum transfer range from 2 to 50 GeV2. The analysis is based on 469 fb−1 of integrated luminosity collected at PEP-II with the BABAR detector at e+e− center-of-mass energies near 10.6 GeV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
The authors study the reaction ee− 2!ee− [eta]{sub c}, [eta]{sub c} 2!K{sub S}K{sup ±}[pi]{sup {-+}} and obtain [eta]{sub c} mass and width values 2982.2 ± 0.4 ± 1.6 MeV/c2 and 31.7 ± 1.2 ± 0.8 MeV, respectively. They find [Lambda]([eta]{sub c} 2![gamma][gamma])[Beta]([eta]{sub c} 2!K{bar K}[pi]) = 0.374 ± 0.009 {+-} 0.031 keV, and measure the [gamma][gamma]* 2![eta]{sub c} transition form factor in the momentum transfer range from 2 to 50 GeV2. The analysis is based on 469 fb−1 of integrated luminosity collected at PEP-II with the BABAR detector at e+e− center-of-mass energies near 10.6 GeV.
Measurement of Th Eta and Etaprime Transition Form Factors at Q^2
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description
The authors report a study of the processes ee− 2![eta][gamma] and ee− 2![eta]'[gamma] at a center-of-mass energy of 10.58 GeV, using a 232 fb−1 data sample collected with the BABAR detector at the PEP-II collider at SLAC.
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description
The authors report a study of the processes ee− 2![eta][gamma] and ee− 2![eta]'[gamma] at a center-of-mass energy of 10.58 GeV, using a 232 fb−1 data sample collected with the BABAR detector at the PEP-II collider at SLAC.
Measurement of the Gamma Gamma* to Pi0 Transition Form Factor
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
Recent Results on Two-Photon Physics at BaBar
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
The authors present measurements of the [gamma][gamma]* → [pi]° transition form factor for the momentum transfer range Q2 = 4-40 GeV2 and the [gamma][gamma]* → [eta]{sub c} transition form factor for the range Q2 = 2-50 GeV2. The results of the measurement of the [eta]{sub c} mass, total and two-photon widths are also presented.
Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
The authors present measurements of the [gamma][gamma]* → [pi]° transition form factor for the momentum transfer range Q2 = 4-40 GeV2 and the [gamma][gamma]* → [eta]{sub c} transition form factor for the range Q2 = 2-50 GeV2. The results of the measurement of the [eta]{sub c} mass, total and two-photon widths are also presented.
Measurement of the Gamma Gamma* -] Pi0 Transition Form Factor
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
Book Description
Measurements of the Meson-Photon Transition Form Factors of Light Pseudoscalar Mesons at Large Momentum Transfer
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Using the CLEO II detector, we have measured the differential cross sections for exclusive two-photon production of light pseudoscalar mesons[pi][sup 0], [eta], and[eta][prime]. From our measurements we have obtained the form factors associated with the electromagnetic transitions[gamma]*[gamma][yields] meson. We have measured these form factors in the momentum transfer ranges from 1.5 to 9, 20, and 30 GeV2 for[pi][sup 0], [eta], and[eta][prime], respectively, and have made comparisons to various theoretical predictions.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Using the CLEO II detector, we have measured the differential cross sections for exclusive two-photon production of light pseudoscalar mesons[pi][sup 0], [eta], and[eta][prime]. From our measurements we have obtained the form factors associated with the electromagnetic transitions[gamma]*[gamma][yields] meson. We have measured these form factors in the momentum transfer ranges from 1.5 to 9, 20, and 30 GeV2 for[pi][sup 0], [eta], and[eta][prime], respectively, and have made comparisons to various theoretical predictions.
Annual Report 1989-90
Author: New Brunswick. Department of Transportation
Publisher:
ISBN: 9781550483925
Category :
Languages : en
Pages : 1272
Book Description
General activity review of associated branches and agencies to the Department which includes corporate securities registrations, a list of tenders received, and general financial data. Branches and agencies reviewed are responsible for motor vehicle activity, highway construction, traffic engineering, telecommunications and public utilities.
Publisher:
ISBN: 9781550483925
Category :
Languages : en
Pages : 1272
Book Description
General activity review of associated branches and agencies to the Department which includes corporate securities registrations, a list of tenders received, and general financial data. Branches and agencies reviewed are responsible for motor vehicle activity, highway construction, traffic engineering, telecommunications and public utilities.
Measurement of the Eta and Search for Other Resonances in Gamma Gamma to Eta
Author: D. Antreasynan
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description