Author: Lachlan Andrew David HillPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A Study of Charged Particle Spectra in 158 GeV/c Pb-Pb Collisions
Author: Lachlan Andrew David HillPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Identified Particle Spectra from DE/dx Ionization Measurements in Pb + Pb Collisions at 158 A. GeV/c
Author: Jason Warren DunnMeasurements of Charged-particle Transverse Momentum Spectra in PbPb Collisions at [square Root Of]nn
![Measurements of Charged-particle Transverse Momentum Spectra in PbPb Collisions at [square Root Of]nn PDF](https://books.google.com/books/content/images/frontcover/p8CHoAEACAAJ?fife=w80-h100)
Author: Eric AppeltPublisher:
ISBN:
Category : Collisions (Nuclear physics)
Languages : en
Pages : 148
Book Description
Study of High Transverse Momentum Charged Particle Suppression in Heavy Ion Collisions at LHC
Author: Andre Sungho YoonPublisher:
ISBN:
Category :
Languages : en
Pages : 284
Book Description
The charged particle spectrum at large transverse momentum (PT), dominated by hadrons originating from parton fragmentation, is an important observable for studying the properties of the hot, dense medium produced in high-energy heavy-ion collisions. The study of the modifications of the PT spectrum in PbPb compared to pp collisions at the same collision energy can shed light on the detailed mechanism by which hard partons lose energy traversing the medium. In this thesis, the transverse momentum spectra of charged particles in pp and PbPb collisions at [square root of]Snn = 2.76 TeV measured up to PT = 100 GeV/c with the CMS experiment at the Large Hadron Collider (LHC) are presented. In the transverse momentum range PT = 5-10 GeV/c, the charged particle yield in the most central PbPb collisions is suppressed by up to a factor of 7 compared to the pp yield scaled by the number of incoherent nucleon-nucleon collisions. At higher PT, this suppression is significantly reduced, approaching roughly a factor of 2 for particles with PT in the range PT = 40-100 GeV/c. A simple modeling of the parton energy loss applied to the PYTHIA Monte-Carlo (MC) reveals that the charged particle spectrum with the pQCD-motivated fractional parton energy loss can describes the shape of the measured suppression well in the range PT = 5-100 GeV/c.
Modification of K0s and Lambda(AntiLambda) Transverse Momentum Spectra in Pb-Pb Collisions at √sNN = 2.76 TeV with ALICE
Author: Simone SchuchmannPublisher: Springer
ISBN: 3319434586
Category : Science
Languages : en
Pages : 216
Book Description
This thesis offers an excellent, comprehensive introduction to the physics of the quark–gluon plasma. It clearly explains the connection between theory and experiment, making the topic accessible to non-specialists in this field. The experimental work, which contributes significantly to our understanding of the quark–gluon plasma, is described in great detail. The results described in the final chapters of the thesis provide interesting new ideas about the connection between proton-proton and Pb-Pb collisions. Simone Schuchmann received the 'ALICE Thesis Award 2016' for this excellent work.
Baryon Stopping and Hadronic Spectra in Pb-Pb Collisons at 158 GeV/nucleon
Author: Glenn Elliot CooperParticle Production Studies in Pb [and] Pb Collisions at 158 A GeV/c
![Particle Production Studies in Pb [and] Pb Collisions at 158 A GeV/c PDF](https://books.google.com/books/content/images/frontcover/TjuVoAEACAAJ?fife=w80-h100)
Author: Franziskus StoffelDie sieben hohen und kräftigen Namen Gottes - Ms.267
Author: Measurement of Charged-particle Spectra in Pb+Pb Collisions at \(\sqrt{s_{\mathrm{NN}}}
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Charged-particle spectra obtained in Pb+Pb interactions at \(\sqrt{s_{\mathrm{NN}}}=2.76 \) TeV and pp interactions at \(\sqrt{s_{\mathrm{NN}}}=2.76 \) TeV with the ATLAS detector at the LHC are presented, using data with integrated luminosities of 0.15 nb−1 and 4.2 pb−1, respectively, in a wide transverse momentum (0.5
Study of Parton Energy Loss in Heavy Ion Collisions Using Charged Particle Spectra Measured with CMS
Author: Austin A. BatyPublisher:
ISBN:
Category :
Languages : en
Pages : 245
Book Description
The phenomenology of the strong nuclear force is still not well understood at low momentum transfers and requires experimental input to constrain. Collisions of heavy ions at the Large Hadron Collider provide a unique opportunity to explore this kinematic region because they create a novel form of matter: the quark-gluon plasma (QGP). Using the CMS detector, spectra of charged particles originating from protonproton (pp), proton-lead (pPb), and lead-lead (PbPb) collisions at a center of mass energy per nucleon pair ( [square root of SNN) of 5.02 TeV are examined as a function of transverse momentum and centrality. Nuclear modification factors and fragmentation functions are constructed from these spectra. By comparing to pp collision reference spectra, a puzzle concerning previous measurements in pPb collisions is clarified. A strong suppression of particle production observed in PbPb collisions is also quantified. Finally, collisions of xenon nuclei are also studied to constrain the path length dependence of parton energy loss. The strength of energy loss is found to increase with both [square root of SNN and the average path length through the QGP. Comparisons to theoretical models and previous measurements indicate that the path length dependence is between linear and quadratic, as expected from a combination of collisional and radiative energy loss mechanisms.