Andere Kunden interessierten sich auch für
![Longitudinal Double-Spin Asymmetry of Electrons from Heavy Flavor Decays in Polarized p + p Collisions at ¿s = 200 GeV]( "Longitudinal Double-Spin Asymmetry of Electrons from Heavy Flavor Decays in Polarized p + p Collisions at ¿s = 200 GeV")
Longitudinal Double-Spin Asymmetry of Electrons from Heavy Flavor Decays in Polarized p + p Collisions at ¿s = 200 GeV74,99 €![Search for Flavor-Changing Neutral Current Top Quark Decays t ¿ Hq, with H ¿ bb¿ , in pp Collisions at ¿s = 8 TeV with the ATLAS Detector]( "Search for Flavor-Changing Neutral Current Top Quark Decays t ¿ Hq, with H ¿ bb¿ , in pp Collisions at ¿s = 8 TeV with the ATLAS Detector")
Search for Flavor-Changing Neutral Current Top Quark Decays t ¿ Hq, with H ¿ bb¿ , in pp Collisions at ¿s = 8 TeV with the ATLAS Detector74,99 €![Charge Multiplicity Asymmetry Correlation Study Searching for Local Parity Violation at RHIC for STAR Collaboration]( "Charge Multiplicity Asymmetry Correlation Study Searching for Local Parity Violation at RHIC for STAR Collaboration")
Charge Multiplicity Asymmetry Correlation Study Searching for Local Parity Violation at RHIC for STAR Collaboration74,99 €![Measurement of the Inclusive Electron Cross-Section from Heavy-Flavour Decays and Search for Compressed Supersymmetric Scenarios with the ATLAS Experiment]( "Measurement of the Inclusive Electron Cross-Section from Heavy-Flavour Decays and Search for Compressed Supersymmetric Scenarios with the ATLAS Experiment")
Measurement of the Inclusive Electron Cross-Section from Heavy-Flavour Decays and Search for Compressed Supersymmetric Scenarios with the ATLAS Experiment37,99 €![Measurement of the Inclusive Electron Cross-Section from Heavy-Flavour Decays and Search for Compressed Supersymmetric Scenarios with the ATLAS Experiment]( "Measurement of the Inclusive Electron Cross-Section from Heavy-Flavour Decays and Search for Compressed Supersymmetric Scenarios with the ATLAS Experiment")
Measurement of the Inclusive Electron Cross-Section from Heavy-Flavour Decays and Search for Compressed Supersymmetric Scenarios with the ATLAS Experiment37,99 €![Search for New Physics in tt ¿ Final States with Additional Heavy-Flavor Jets with the ATLAS Detector]( "Search for New Physics in tt ¿ Final States with Additional Heavy-Flavor Jets with the ATLAS Detector")
Search for New Physics in tt ¿ Final States with Additional Heavy-Flavor Jets with the ATLAS Detector74,99 €![Search for Supersymmetry in pp Collisions at ¿s = 8 TeV with a Photon, Lepton, and Missing Transverse Energy]( "Search for Supersymmetry in pp Collisions at ¿s = 8 TeV with a Photon, Lepton, and Missing Transverse Energy")
Search for Supersymmetry in pp Collisions at ¿s = 8 TeV with a Photon, Lepton, and Missing Transverse Energy37,99 €
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.
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.