Longitudinal Double-Spin Asymmetry of Electrons from Heavy Flavor Decays in Polarized p + p Collisions at s = 200 GeV (Springer Theses) free ebook download.

Home : Book details

Longitudinal Double-Spin Asymmetry of Electrons from Heavy Flavor Decays in Polarized p + p Collisions at s = 200 GeV (Springer Theses) free ebook download

Category:
Physics

Views: 78
Likes: 201

Catalogue

Author(s):	Katsuro Nakamura

Date:	May 22, 2014	Format:	pdf	Language:	English	ISBN/ASIN:	4431546154
Pages:	141	OCR:		Quality:		ISBN13:
Uploader:	alex21s	Upload Date:	10/19/2019 9:10:33 PM

To download click on link in the Links Table below

Description: Click to see full description

In this thesis, the measurement of double-spin asymmetry for electron production from heavy flavor decays was performed in a Relativistic Heavy Ion Collider (RHIC) in the PHENIX experiment at Brookhaven National Laboratory to measure the polarized parton distribution function of gluon in the small Bjorken x region (x~0.01).
For this experiment, for the first time a Hadron Blind Detector (HBD), which is a position-sensitive gas Cherenkov counter with Gas Electron Multiplier whose surface is evaporated by CsI, was employed. This HBD contributes to reducing the background from electron pairs produced by real and virtual photon conversion. Furthermore, the author develops a new analysis method for the background reduction, and the signal-to-background ratio is improved by a factor of roughly 2.0. Using the combination of the HBD and a new analysis method, the double-spin asymmetry of the electron production with transverse momentum ranging 0.5 pT 3.0 GeV/c is measured and confirmed to be zero-consistent within the limit of the statistical uncertainty of about 1%. This result identifies the constraint of the gluon polarization in the small Bjorken x region, a worldwide first.

Links Table

	Title	Link	Password	Size (MB)	Thank to	Inform Admin
2611405	Book	https://nitroflare.com/view/31C2834C750E...		9.68	alex21s

Tags: Asymmetry Collisions Decays Electrons Flavor Heavy Longitudinal Polarized Springer Theses

Title	Link	Password	Size	Reason

Those who downloaded this book also downloaded the following books:
Comments

New comment: