Study of Direct Single Photons and Correlated Particles in Proton-proton Collisions At. Sqrt. S PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Study of Direct Single Photons and Correlated Particles in Proton-proton Collisions At. Sqrt. S PDF full book. Access full book title Study of Direct Single Photons and Correlated Particles in Proton-proton Collisions At. Sqrt. S by . Download full books in PDF and EPUB format.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Invariant cross sections for direct single photon production were measured with thresholds of 3, 5, 7, and 9 GeV/c in p/sub T/. The fraction .gamma./all of single-photon events in the data sample is plotted. The +/- charge ratio in the hemisphere opposite the trigger was determined for single-.gamma. and .pi.°-type events. 4 figures. (RWR).
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Invariant cross sections for direct single photon production were measured with thresholds of 3, 5, 7, and 9 GeV/c in p/sub T/. The fraction .gamma./all of single-photon events in the data sample is plotted. The +/- charge ratio in the hemisphere opposite the trigger was determined for single-.gamma. and .pi.°-type events. 4 figures. (RWR).
Author: You-Hao Chang Publisher: Springer ISBN: 9811038244 Category : Science Languages : en Pages : 107
Book Description
This book mainly focuses on the study of photon + 3 jets final state in Proton-Proton Collisions at √s = 7TeV, searching for patterns of two (or more) distinct hard scatterings in the same collision, i.e the so-called Double Parton Scattering (DPS). A new method by using Monte Carlo generators was performed and provides higher order corrections to the description of the Single Parton Scattering (SPS) background. Further it is investigated whether additional contributions from DPS can improve the agreement between the measured data and the Monte Carlo predictions. The current theoretical uncertainties related to the SPS background are found to be larger than expectation. At the same time a rich set of DPS-sensitive measurements is reported for possible further interpretation.
Author: Publisher: ISBN: Category : Languages : en Pages : 183
Book Description
The center-of-mass angular distribution of direct photon events, resulting from proton-antiproton collisions at a center-of-mass energy of 1.8 TeV, as measured by the Collider Detector at Fermi lab (CDF) during the 1988-1089 experimental run, is presented. The direct photon events are identified primarily through the direct photon's characteristic isolation from other particles. The main source of background is from rare fragmentation of QCD partons into single isolated neutral mesons, which decay into two or more photons. The background is removed statistically by exploitation of tile expected difference in the resulting shower profiles. The resulting angular distribution for direct photons, in the transverse momentum range from 22 to 45 Ge V is found to agree favorably with the predictions of Quantum Cbromodynamics (QCD) for an interaction with a fermion (spin 1/2) propagator.
Author: Jonathan Coull Publisher: ISBN: Category : Languages : en Pages :
Book Description
In this thesis, we study photon production and photon-hadron correlations at next-to-leading order (NLO) in proton-proton collisions, in both the cases of isolated and non-isolated photons. To begin, fundamentals of perturbative Quantum Chromodynamics (pQCD) are reviewed, with an emphasis on describing how to compute spectra for single particle production and correlated pairs at both leading order (LO) and NLO in hadronic collisions. In particular, a discussion of infrared and collinear singularities at NLO will provide a natural introduction to the concept of factorization. These results are then specifically applied to the case of computing photon and pion single-particle cross-sections in proton-proton collisions at Relativistic Heavy-Ion Collider (RHIC) and Large Hadron Collider(LHC) energies, and compared to experimental data from the PHENIX and CMS experiments respectively. Included in this will be a short study of the theoretical systematic uncertainty ...
Author: 
Author: 
Author: You-Hao Chang
Author: Jonathan Coull
Author: 
Author: 
Author: 
Author: Jonathan Coull
Author: David Michael Morse
Author: ![Direct Photon Center-of-mass Angular Distribution in Proton-antiproton Collisions at [square Root]s PDF](https://books.google.com/books/content/images/frontcover/VKAFtwAACAAJ?fife=w80-h100)
Author: Leslie F. Nakae