Author: Ross C. KingPublisher:
ISBN:
Category :
Languages : en
Pages : 346
Book Description
A Precise Measurement of the Left-right Asymmetry of Z Boson Production at the Stanford Linear Collider
Author: Ross C. KingA Precise Measurement of the Left-right Asymmetry of Z Boson Production at the SLAC Linear Collider
Author: A Precise Measurement of the Left-right Cross Section Asymmetry in Z Boson Production
Author: Amitabh Lathמחזה אהרן
Author: Measurement of the Left-right Asymmetry in Z Boson Production by Electron-positron Collisions
Author: Precise Measurement of the Left-right Cross Section Asymmetry in Z Boson Production by Electron-positron Collisions
Author: Precise Measurement of the Left-right Cross Section Asymmetry in Z Boson Production by Esup +esup Minus Collisions
Author: A Precise Measurement of the Left-right Cross Section Asymmetry in Z Boson Production
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The thesis presents a measurement of the left-right asymmetry, A[sub LR], n the production cross section of Z Bosons produced by e[sup+]e[sup -] annihilations, using polarized electrons, at a center of mass energy of 91.26 Gev. The data presented was recorded by the SLD detector at the SLAC Linear Collider during the 1993 run. The mean luminosity-weighted polarization of the electron beam was[rho][sup lum]= (63.0[+-]1.1)%. Using a sample of 49,392 Z events, we measure A[sub LR] to be 0.1626[+-]0.0071(stat)[+-]0.0030(sys.), which determined the effective weak mixing angle to be sin[sup 2][theta][sub W][sup eff]= 0.2292[+-]0.0009(stat.)[+-]0.0004(sys.). This result differs from that expected by the Standard Model of Particles and Fields by 2.5 standard deviations.
Precise Measurement of the Left-right Cross Section Asymmetry in Z Boson Production by E[sup+]e[sup[minus] Collisions
![Precise Measurement of the Left-right Cross Section Asymmetry in Z Boson Production by E[sup+]e[sup[minus] Collisions PDF](https://books.google.com/books/content/images/frontcover/Biz6jwEACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The authors present a precise measurement of the left-right cross section asymmetry (A[sub LR]) for Z boson production by e[sup+]e[sup[minus]] collisions. The measurement was performed at a center-of-mass energy of 91.26 GeV with the SLD detector at the SLAC Linear Collider (SLC). The luminosity-weighted average polarization of the SLC electron beam was (63.0[+-] 1.1)%. Using a sample of 49,392 Z decays, they measure A[sub LR] to be 0.1628[+-] 0.0071 (stat.)[+-] 0.0028(syst.) which determines the effective weak mixing angle to be sin[sup 2][theta][sub W][sup eff]= 0.2292[+-] 0.0009(stat.)[+-] 0.0004(syst.). They combine this result with the result obtained in 1992 and obtain sin[sup 2][theta][sub W][sup eff]= 0.2294[+-] 0.0010, which constitutes the best measurement of sin[sup 2][theta][sub W][sup eff] in a single experiment presently available.
Author: