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Author : M. J. Russcher
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (847 download)
Download or read book Direct Photon Measurement in Proton-proton and Deuteron-gold Collisions written by M. J. Russcher and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : You-Hao Chang
Publisher : Springer
ISBN 13 : 9811038244
Total Pages : 107 pages
Book Rating : 4.8/5 (11 download)
Download or read book Study of Double Parton Scattering in Photon + 3 Jets Final State written by You-Hao Chang and published by Springer. This book was released on 2017-01-20 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Study of Direct Single Photons and Correlated Particles in Proton-proton Collisions At. Sqrt. S written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Dana Partos
Publisher :
ISBN 13 :
Total Pages : 157 pages
Book Rating : 4.:/5 (476 download)
Download or read book Measurement of the Square Root of S Dependence of Isolated Direct Photon Production in Proton-antiproton Collisions written by Dana Partos and published by . This book was released on 2001 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christian Erd
Publisher :
ISBN 13 :
Total Pages : 238 pages
Book Rating : 4.:/5 (636 download)
Download or read book Measurement of Direct Photons at Low Transverse Momentum in Proton-nucleus Collisions at 450 GeV/c written by Christian Erd and published by . This book was released on 1991 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for Direct Photon Production at Large P/sub T/ in Proton-proton Collisions At. Sqrt. S written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary results from the CCOR Group, Experiment R-108, at the CERN ISR are reported. In addition, previously published results from the Rome-Brookhaven-CERN Group at the ISR will be reviewed.
Author : Tatia Engelmore
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (1 download)
Download or read book Electron-Muon Correlations in Proton+Proton and Deuteron+Gold Collisions at PHENIX written by Tatia Engelmore and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sébastien Prince
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (18 download)
Download or read book First Measurement of the Associated Production of a Photon and a Bottom Quark in Proton-proton Collisions written by Sébastien Prince and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The first measurement of the differential cross section of the associated production of a photon and a bottom quark in proton-proton collisions is presented. Protons are accelerated and brought into collision at a center-of-mass energy of 8 TeV by the Large Hadron Collider. The collisions are recorded with the ATLAS detector and correspond to an integrated luminosity of up to 20.2 fb-1. The measurement is performed in two regions of the absolute value of the photon pseudorapidity: from 0 to 1.37 and from 1.56 to 2.37. The measurement is performed as a function of the photon transverse energy, from 25 to 400 GeV in the former pseudorapidity region and from 25 to 350 GeV in the latter region. The relative uncertainty in the measurement varies between 13% and 54% and is dominated by the uncertainty in the efficiency of identifying jets containing bottom quarks. The ratio of the cross section in the two pseudorapidity regions is also measured to reduce the positively correlated systematic uncertainties in the measurement between the two regions. The measurement is compared to predictions of perturbative quantum chromodynamics at the leading order and at the next-to-leading order. At low transverse energy, a good agreement is observed between the measured and the predicted values. At high transverse energy, however, the measured values are observed to be up to a factor of two larger than the most precise predicted values. This measurement can help improve the modelling of bottom quarks in perturbative quantum chromodynamics." --
Author :
Publisher :
ISBN 13 :
Total Pages : 668 pages
Book Rating : 4.:/5 (319 download)
Download or read book Canadian Journal of Physics written by and published by . This book was released on 2008 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.:/5 (982 download)
Download or read book Inclusive Direct Photon Production in the Central and Forward Rapidity Regions in Proton - Anti-proton Collisions at a Center-of-mass Energy of 1800-GeV. written by and published by . This book was released on 1997 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of isolated direct photon production in proton-antiproton collisions at a center of mass energy √s= 1800 Ge V is reported, as measured at the D0 Fermilab Tevatron. Cross sections for the central (0 ≤
Author : Matthias Heiden
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (251 download)
Download or read book A Measurement of Direct Electron Production in Proton-proton Collisions at the CERN ISR written by Matthias Heiden and published by . This book was released on 1981 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 183 pages
Book Rating : 4.:/5 (985 download)
Download or read book Direct Photon Center-of-Mass Angular Distributions in $p\bar{p}$ Collisions at $\sqrt{s}$ written by and published by . This book was released on 1992 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (683 download)
Download or read book Measurement of Direct Photons in 200·A GeV 32S + Au Collisions written by and published by . This book was released on 1996 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two years ago at the 10th Winter Workshop on Nuclear Dynamics, we reported preliminary results from our measurements of photons in reactions of 200·A GeV 32S ions with Au nuclei. The results had been presented earlier at Quark Matter '93. For central collisions we reported a small, but statistically significant, excess of photons over those that can be accounted for by the two-photon decay branches of neutral pions and eta mesons and by the small photon contributions from other radiative decays. This paper is, in a sense, a sequel to the 1994 presentation. Here we present the final WA80 single 'direct' photon results, and we discuss their implications for various theoretical calculations. 13 refs., 2 figs., 1 tab.
Author : C. O. Escobar
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (125 download)
Download or read book Direct Production of Photons with Large Transverse Momentum in Proton-Proton Collisions written by C. O. Escobar and published by . This book was released on 1976 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Direct Photon Center-of-mass Angular Distribution in Proton-antiproton Collisions at [square Root]s PDF Online Free](https://books.google.com/books/content/images/frontcover/VKAFtwAACAAJ?fife=w200-h370)
Author : Leslie F. Nakae
Publisher :
ISBN 13 :
Total Pages : 167 pages
Book Rating : 4.:/5 (277 download)
Download or read book Direct Photon Center-of-mass Angular Distribution in Proton-antiproton Collisions at [square Root]s written by Leslie F. Nakae and published by . This book was released on 1992 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fabrizio Grosa
Publisher : Springer Nature
ISBN 13 : 3030711315
Total Pages : 227 pages
Book Rating : 4.0/5 (37 download)
Download or read book Strange and Non-Strange D-meson Production in pp, p-Pb, and Pb-Pb Collisions with ALICE at the LHC written by Fabrizio Grosa and published by Springer Nature. This book was released on 2021-04-17 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis provides a comprehensive view of the physics of charmed hadrons in high-energy proton-proton and heavy-ion collisions. Given their large masses, charm quarks are produced in the early stage of a heavy-ion collision and they subsequently experience the full system evolution probing the colour-deconfined medium called quark-gluon plasma (QGP) created in such collisions. In this thesis, the mechanisms of charm-quark in-medium energy loss and hadronisation are discussed via the measurements of the production of charm mesons with (Ds+) and without (D+) strange-quark content in different colliding systems, using data collected by the ALICE experiment at the CERN LHC. The participation of the charm quark and its possible thermalisation in the QGP are studied via measurements of azimuthal anisotropies in the production of D+ mesons. Finally, the prospects for future measurements with the upgraded ALICE experimental apparatus and with more refined machine learning techniques are presented.
Author : Timothy James Hester
Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.:/5 (834 download)
Download or read book Measurement of Neutral Pions and Direct Photons in Copper + Copper Collisions at 62.4 GeV Center of Mass Energy written by Timothy James Hester and published by . This book was released on 2012 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
