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Investigating Parton Energy Loss in ...

Ohlson, Alice Elisabeth.

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Investigating Parton Energy Loss in the Quark-Gluon Plasma with Jet-hadron Correlations and Jet Azimuthal Anisotrophy at STAR.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Investigating Parton Energy Loss in the Quark-Gluon Plasma with Jet-hadron Correlations and Jet Azimuthal Anisotrophy at STAR./
Author:	Ohlson, Alice Elisabeth.
Description:	148 p.
Notes:	Source: Dissertation Abstracts International, Volume: 75-05(E), Section: B.
Contained By:	Dissertation Abstracts International75-05B(E).
Subject:	Nuclear physics and radiation. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3578426
ISBN:	9781303716058

Investigating Parton Energy Loss in the Quark-Gluon Plasma with Jet-hadron Correlations and Jet Azimuthal Anisotrophy at STAR.
Ohlson, Alice Elisabeth.

Investigating Parton Energy Loss in the Quark-Gluon Plasma with Jet-hadron Correlations and Jet Azimuthal Anisotrophy at STAR. - 148 p.

Source: Dissertation Abstracts International, Volume: 75-05(E), Section: B.

Thesis (Ph.D.)--Yale University, 2013.

This item must not be sold to any third party vendors.

In high-energy collisions of gold nuclei at the Relativistic Heavy Ion Collider (RHIC) and of lead nuclei at the Large Hadron Collider (LHC), a new state of matter known as the Quark-Gluon Plasma (QGP) is formed. This strongly-coupled, deconfined state of quarks and gluons represents the high energy-density limit of quantum chromodynamics. The QGP can be probed by high-momentum quarks and gluons (collectively known as partons) that are produced in hard scatterings early in the collision. The partons traverse the QGP and fragment into collimated "jets" of hadrons. Studies of parton energy loss within the QGP, or medium-induced jet quenching, can lead to insights into the interactions between a colored probe (a parton) and the colored medium (the QGP).

ISBN: 9781303716058Subjects--Topical Terms:

3173793
Nuclear physics and radiation.

Investigating Parton Energy Loss in the Quark-Gluon Plasma with Jet-hadron Correlations and Jet Azimuthal Anisotrophy at STAR.
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020 $a 9781303716058
035 $a (MiAaPQ)AAI3578426
035 $a AAI3578426
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100 1 $a Ohlson, Alice Elisabeth. $3 3173892
245 1 0 $a Investigating Parton Energy Loss in the Quark-Gluon Plasma with Jet-hadron Correlations and Jet Azimuthal Anisotrophy at STAR.
300 $a 148 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-05(E), Section: B.
500 $a Adviser: John Harris.
502 $a Thesis (Ph.D.)--Yale University, 2013.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a In high-energy collisions of gold nuclei at the Relativistic Heavy Ion Collider (RHIC) and of lead nuclei at the Large Hadron Collider (LHC), a new state of matter known as the Quark-Gluon Plasma (QGP) is formed. This strongly-coupled, deconfined state of quarks and gluons represents the high energy-density limit of quantum chromodynamics. The QGP can be probed by high-momentum quarks and gluons (collectively known as partons) that are produced in hard scatterings early in the collision. The partons traverse the QGP and fragment into collimated "jets" of hadrons. Studies of parton energy loss within the QGP, or medium-induced jet quenching, can lead to insights into the interactions between a colored probe (a parton) and the colored medium (the QGP).
520 $a Two analyses of jet quenching in relativistic heavy ion collisions are presented here. In the jet-hadron analysis, the distributions of charged hadrons with respect to the axis of a reconstructed jet are investigated as a function of azimuthal angle and transverse momentum (pT). It is shown that jets that traverse the QGP are softer (consisting of fewer high-pT fragments and more low-p T constituents) than jets in p+p collisions. There are also indications that the shapes of the distributions of charged hadrons about the jet axis are modified by interactions with the QGP. The results are quantitatively consistent with two models of medium-induced radiative parton energy loss.
520 $a A measurement of jet v2, defined as the correlation between reconstructed jets and the reaction plane or 2nd-harmonic participant plane (approximated by the 2nd-harmonic event plane), provides information about the medium-induced pathlength-dependence of parton energy loss. The event plane is reconstructed with detectors at forward pseudorapidity in order to reduce the artificial jet -- event plane bias, which results from jet fragments being included in the event plane calculation. A non-zero jet v2 is measured, indicating that more jets are reconstructed with a higher energy in-plane compared to out-of-plane, which demonstrates that the parton energy loss depends on the length of the parton's path through the QGP.
520 $a The data analyzed here were collected in sNN = 200 GeV Au+Au and p+p collisions at the STAR detector at RHIC. A novel method for measuring jet v2 is also proposed and tested in simulation.
590 $a School code: 0265.
650 4 $a Nuclear physics and radiation. $3 3173793
650 4 $a High energy physics. $3 2144759
690 $a 0756
690 $a 0798
710 2 $a Yale University. $3 515640
773 0 $t Dissertation Abstracts International $g 75-05B(E).
790 $a 0265
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3578426