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Testing the case for the creation of...

Adil, Azfar.

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Testing the case for the creation of a strongly interacting quark gluon plasma at RHIC.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Testing the case for the creation of a strongly interacting quark gluon plasma at RHIC./
作者:	Adil, Azfar.
面頁冊數:	224 p.
附註:	Source: Dissertation Abstracts International, Volume: 68-09, Section: B, page: 6032.
Contained By:	Dissertation Abstracts International68-09B.
標題:	Physics, Elementary Particles and High Energy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3285033
ISBN:	9780549270850

Testing the case for the creation of a strongly interacting quark gluon plasma at RHIC.
Adil, Azfar.

Testing the case for the creation of a strongly interacting quark gluon plasma at RHIC. - 224 p.

Source: Dissertation Abstracts International, Volume: 68-09, Section: B, page: 6032.

Thesis (Ph.D.)--Columbia University, 2007.

Recent data from the Relativistic Heavy Ion Collider (RHIC) has provided information regarding the creation of dense QCD matter in Heavy Ion Collisions (HIC). Two of the most puzzling issues raised are; (1) models using ideal hydrodynamics to describe bulk evolution have met with great success in reproducing data in HIC at RHIC, and (2) the recent data detailing the production of non-photonic electrons from heavy meson decays has shown a large quenching of heavy quark jets that is not explained by radiative energy loss calculations. These two surprising results lend credence to the claim that a Strongly Coupled Quark Gluon Plasma (sQGP) has been created at RHIC; with the strong coupling characteristics providing both the low viscosity needed by (1) and the large momentum transfers needed by (2). In order to properly quantify this, one needs to get a better understanding of the detailes of jet tomography so that one can truly adjudicate the need for sQGP creation.

ISBN: 9780549270850Subjects--Topical Terms:

1019488
Physics, Elementary Particles and High Energy.

Testing the case for the creation of a strongly interacting quark gluon plasma at RHIC.
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245 1 0 $a Testing the case for the creation of a strongly interacting quark gluon plasma at RHIC.
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500 $a Source: Dissertation Abstracts International, Volume: 68-09, Section: B, page: 6032.
502 $a Thesis (Ph.D.)--Columbia University, 2007.
520 $a Recent data from the Relativistic Heavy Ion Collider (RHIC) has provided information regarding the creation of dense QCD matter in Heavy Ion Collisions (HIC). Two of the most puzzling issues raised are; (1) models using ideal hydrodynamics to describe bulk evolution have met with great success in reproducing data in HIC at RHIC, and (2) the recent data detailing the production of non-photonic electrons from heavy meson decays has shown a large quenching of heavy quark jets that is not explained by radiative energy loss calculations. These two surprising results lend credence to the claim that a Strongly Coupled Quark Gluon Plasma (sQGP) has been created at RHIC; with the strong coupling characteristics providing both the low viscosity needed by (1) and the large momentum transfers needed by (2). In order to properly quantify this, one needs to get a better understanding of the detailes of jet tomography so that one can truly adjudicate the need for sQGP creation.
520 $a We consider the theoretical uncertainties stemming from the Poisson convolution assumption in energy loss calculations. We examine two different ways to account for the leakage of probabilities into unphysical regions and show that the evolution of the nuclear modification factor, RAA, with center of mass energy is sensitive to these differences.
520 $a The success of ideal hydrodynamics in describing the evolution of bulk matter in the QGP phase is dependent on the choice of initial state that is fed into the evolution equations. The Participant Brodsk-Gunion-Kuhn initial conditions lead to a good agreement with the data while initial states inspired by Color Glass Condensate (CGC) models overestimate the data and seem to imply the need for viscous dissipative corrections to the dynamics. We propose 3D jet tomography as a probe to experimentally differentiate between the BGK and CGC initial state models. We find and induced non zero directed flow vl in the high p&bottom; spectra in both BGK and CGC models that can be used to differentiate between the two models.
520 $a Finally, we investigate alternative energy loss mechanisms for heavy quarks in a QGP. We consider elastic energy loss of heavy quarks for jets created at a finite time in the medium. We find a finite time delay effect that depresses the energy loss for small lengths &sim; 1/mu D but then a subsequent buildup back to the infinite time case, making collisional energy loss a viable source of heavy quark jet quenching. We also consider the energy loss caused by repeated dissociation of heavy mesons due to transverse kicks from the medium. We model this process using coupled rate equations in the medium and find appreciable quenching of both bottom and charm quarks.
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650 4 $a Physics, Nuclear. $3 1019065
650 4 $a Physics, Theory. $3 1019422
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710 2 $a Columbia University. $3 571054
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