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Investigation of hadronic resonances...

Salur, Sevil.

Investigation of hadronic resonances with STAR.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Investigation of hadronic resonances with STAR.
Author:	Salur, Sevil.
Description:	163 p.
Notes:	Adviser: John Harris.
Notes:	Source: Dissertation Abstracts International, Volume: 67-04, Section: B, page: 2054.
Contained By:	Dissertation Abstracts International67-04B.
Subject:	Physics, Nuclear.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3214291
ISBN:	9780542653650

Investigation of hadronic resonances with STAR.
Salur, Sevil.

Investigation of hadronic resonances with STAR. - 163 p.

Adviser: John Harris.

Thesis (Ph.D.)--Yale University, 2006.

It has been hypothesized that pentaquarks, consisting of various combinations of five light u, d, and s quarks, may be produced in the high density collisions occurring at RHIC. Simulation studies and improved resonance identification techniques are used to search for pentaquarks.

ISBN: 9780542653650Subjects--Topical Terms:

227654
Physics, Nuclear.

Investigation of hadronic resonances with STAR.
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100 0 $a Salur, Sevil. $3 264086
245 1 0 $a Investigation of hadronic resonances with STAR.
300 $a 163 p.
500 $a Adviser: John Harris.
500 $a Source: Dissertation Abstracts International, Volume: 67-04, Section: B, page: 2054.
502 $a Thesis (Ph.D.)--Yale University, 2006.
520 # $a It has been hypothesized that pentaquarks, consisting of various combinations of five light u, d, and s quarks, may be produced in the high density collisions occurring at RHIC. Simulation studies and improved resonance identification techniques are used to search for pentaquarks.
520 # $a Strongly interacting, high density matter is produced in heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC). Hadronic resonances, due to their short lifetimes, can be used to investigate the freeze-out mechanisms after hadronization. The production of the strange baryonic resonance Sigma*(1385) is investigated for the first time in heavy ion collisions and, through comparison with other resonances, the evolution of the fireball is investigated.
520 # $a The data used for the analyses in this thesis were taken with the Solenoidal Tracker at RHIC (STAR) detector. Measurements of Sigma*(1385), through the hadronic decay channel Sigma*(1385)+/- →Λ + pi+/-, in the 0-5% most central Au+Au and minimum bias p+p and d+Au collisions are presented. The invariant mass spectra of the Sigma*(1385) are reconstructed using a combinatorial technique, and a mixed-event technique is applied to estimate the uncorrelated background. The corrected pT spectra, inverse slope parameters, and yields of the Sigma(1385)+/- and their antiparticles are measured and compared. The &lang;pT&rang; measurements of the Sigma*(1385) is compared to those of other heavy particles to investigate effects of radial flow and particle production mechanisms. The Sigma*(1385)/Λ ratio, along with other resonance to stable particle ratios, suggests that a regeneration mechanism recovers signal loss due to re-scattering in the final state in Au+Au collisions. The nuclear modification factors, RdAu and RAA for Sigma*(1385) are studied in comparison to those stable particles.
590 $a School code: 0265.
650 # 0 $a Physics, Nuclear. $3 227654
650 # 0 $a Physics, Elementary Particles and High Energy. $3 227490
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790 1 0 $a Harris, John, $e advisor
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792 $a 2006
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