Extracting kinetic freeze-out temperature and radial flow velocity from an improved Tsallis distribution
. We analyze the transverse-momentum (p T ) spectra of identified particles ( π ± , K ± , p , and p ¯ ) produced in gold-gold (Au-Au) and lead-lead (Pb-Pb) collisions over a s N N (center-of-mass energy per nucleon pair) range from 14.5 GeV (one of the Relativistic Heavy Ion Collider (RHIC) energies...
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container_title | The European physical journal. A, Hadrons and nuclei |
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creator | Lao, Hai-Ling Liu, Fu-Hu Lacey, Roy A. |
description | .
We analyze the transverse-momentum (p
T
) spectra of identified particles (
π
±
,
K
±
,
p
, and
p
¯
) produced in gold-gold (Au-Au) and lead-lead (Pb-Pb) collisions over a
s
N
N
(center-of-mass energy per nucleon pair) range from 14.5 GeV (one of the Relativistic Heavy Ion Collider (RHIC) energies) to 2.76 TeV (one of the Large Hadron Collider (LHC) energies). For the spectra with a narrow p
T
range, an improved Tsallis distribution which is in fact the Tsallis distribution with radial flow is used. For the spectra with a wide p
T
range, a superposition of the improved Tsallis distribution and an inverse power law is used. Both the extracted kinetic freeze-out temperature (T
0
) and radial flow velocity (
β
T
) increase with the increase of
s
N
N
, which indicates a higher excitation and larger expansion of the interesting system at the LHC. Both the values of T
0
and
β
T
in central collisions are slightly larger than those in peripheral collisions, and they are independent of isospin and slightly dependent on mass. |
doi_str_mv | 10.1140/epja/i2017-12238-1 |
format | Article |
fullrecord | <record><control><sourceid>proquest_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_1536904</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1880760093</sourcerecordid><originalsourceid>FETCH-LOGICAL-c346t-fa8f3a49f0fde1b2d476e3fffdfa6d51cc038a83092a9df8b94faa80748551d33</originalsourceid><addsrcrecordid>eNp1kM9LwzAYhosoOKf_gKeg57qkSbv2KGP-gIEXBW8hS75smW1Tk3Q6_3qzVcSLp3yQ5315eZLkkuAbQhieQLcRE5NhMk1JltEyJUfJiDDK0gKT1-PfG5PT5Mz7DcaYZVUxStbzz-CEDKZdoTfTQjASaQfwBantAwrQdOBE6B0g0SrkhDKiRrq2H2gLtZUm7CJvm_iLTNM5uwWFnr2oa-ORMj44s-yDse15cqJF7eHi5x0nL3fz59lDuni6f5zdLlJJWRFSLUpNBas01grIMlNsWgDVWistCpUTKTEtRUlxlYlK6XJZMS1EiaeszHOiKB0nV0Ov9cFwHweCXEvbtiADJzktKswidD1AcfB7Dz7wje1dG3dxUsayKKraV2UDJZ313oHmnTONcDtOMN9r53vt_KCdH7RzEkN0CPkItytwf6r_T30DAl6J6g</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1880760093</pqid></control><display><type>article</type><title>Extracting kinetic freeze-out temperature and radial flow velocity from an improved Tsallis distribution</title><source>SpringerLink Journals</source><creator>Lao, Hai-Ling ; Liu, Fu-Hu ; Lacey, Roy A.</creator><creatorcontrib>Lao, Hai-Ling ; Liu, Fu-Hu ; Lacey, Roy A. ; State Univ. of New York (SUNY), Albany, NY (United States)</creatorcontrib><description>.
We analyze the transverse-momentum (p
T
) spectra of identified particles (
π
±
,
K
±
,
p
, and
p
¯
) produced in gold-gold (Au-Au) and lead-lead (Pb-Pb) collisions over a
s
N
N
(center-of-mass energy per nucleon pair) range from 14.5 GeV (one of the Relativistic Heavy Ion Collider (RHIC) energies) to 2.76 TeV (one of the Large Hadron Collider (LHC) energies). For the spectra with a narrow p
T
range, an improved Tsallis distribution which is in fact the Tsallis distribution with radial flow is used. For the spectra with a wide p
T
range, a superposition of the improved Tsallis distribution and an inverse power law is used. Both the extracted kinetic freeze-out temperature (T
0
) and radial flow velocity (
β
T
) increase with the increase of
s
N
N
, which indicates a higher excitation and larger expansion of the interesting system at the LHC. Both the values of T
0
and
β
T
in central collisions are slightly larger than those in peripheral collisions, and they are independent of isospin and slightly dependent on mass.</description><identifier>ISSN: 1434-6001</identifier><identifier>EISSN: 1434-601X</identifier><identifier>DOI: 10.1140/epja/i2017-12238-1</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Collisions ; Flow velocity ; Gold ; Hadrons ; Heavy Ions ; Large Hadron Collider ; Lead ; Nuclear Fusion ; Nuclear Physics ; Particle accelerators ; Particle and Nuclear Physics ; Physics ; Physics and Astronomy ; Radial flow ; Regular Article - Theoretical Physics ; Relativistic Heavy Ion Collider ; Spectra</subject><ispartof>The European physical journal. A, Hadrons and nuclei, 2017-03, Vol.53 (3), p.1-21, Article 44</ispartof><rights>SIF, Springer-Verlag Berlin Heidelberg 2017</rights><rights>Copyright Springer Science & Business Media 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c346t-fa8f3a49f0fde1b2d476e3fffdfa6d51cc038a83092a9df8b94faa80748551d33</citedby><cites>FETCH-LOGICAL-c346t-fa8f3a49f0fde1b2d476e3fffdfa6d51cc038a83092a9df8b94faa80748551d33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1140/epja/i2017-12238-1$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1140/epja/i2017-12238-1$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>230,314,776,780,881,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/1536904$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Lao, Hai-Ling</creatorcontrib><creatorcontrib>Liu, Fu-Hu</creatorcontrib><creatorcontrib>Lacey, Roy A.</creatorcontrib><creatorcontrib>State Univ. of New York (SUNY), Albany, NY (United States)</creatorcontrib><title>Extracting kinetic freeze-out temperature and radial flow velocity from an improved Tsallis distribution</title><title>The European physical journal. A, Hadrons and nuclei</title><addtitle>Eur. Phys. J. A</addtitle><description>.
We analyze the transverse-momentum (p
T
) spectra of identified particles (
π
±
,
K
±
,
p
, and
p
¯
) produced in gold-gold (Au-Au) and lead-lead (Pb-Pb) collisions over a
s
N
N
(center-of-mass energy per nucleon pair) range from 14.5 GeV (one of the Relativistic Heavy Ion Collider (RHIC) energies) to 2.76 TeV (one of the Large Hadron Collider (LHC) energies). For the spectra with a narrow p
T
range, an improved Tsallis distribution which is in fact the Tsallis distribution with radial flow is used. For the spectra with a wide p
T
range, a superposition of the improved Tsallis distribution and an inverse power law is used. Both the extracted kinetic freeze-out temperature (T
0
) and radial flow velocity (
β
T
) increase with the increase of
s
N
N
, which indicates a higher excitation and larger expansion of the interesting system at the LHC. Both the values of T
0
and
β
T
in central collisions are slightly larger than those in peripheral collisions, and they are independent of isospin and slightly dependent on mass.</description><subject>Collisions</subject><subject>Flow velocity</subject><subject>Gold</subject><subject>Hadrons</subject><subject>Heavy Ions</subject><subject>Large Hadron Collider</subject><subject>Lead</subject><subject>Nuclear Fusion</subject><subject>Nuclear Physics</subject><subject>Particle accelerators</subject><subject>Particle and Nuclear Physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Radial flow</subject><subject>Regular Article - Theoretical Physics</subject><subject>Relativistic Heavy Ion Collider</subject><subject>Spectra</subject><issn>1434-6001</issn><issn>1434-601X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp1kM9LwzAYhosoOKf_gKeg57qkSbv2KGP-gIEXBW8hS75smW1Tk3Q6_3qzVcSLp3yQ5315eZLkkuAbQhieQLcRE5NhMk1JltEyJUfJiDDK0gKT1-PfG5PT5Mz7DcaYZVUxStbzz-CEDKZdoTfTQjASaQfwBantAwrQdOBE6B0g0SrkhDKiRrq2H2gLtZUm7CJvm_iLTNM5uwWFnr2oa-ORMj44s-yDse15cqJF7eHi5x0nL3fz59lDuni6f5zdLlJJWRFSLUpNBas01grIMlNsWgDVWistCpUTKTEtRUlxlYlK6XJZMS1EiaeszHOiKB0nV0Ov9cFwHweCXEvbtiADJzktKswidD1AcfB7Dz7wje1dG3dxUsayKKraV2UDJZ313oHmnTONcDtOMN9r53vt_KCdH7RzEkN0CPkItytwf6r_T30DAl6J6g</recordid><startdate>20170301</startdate><enddate>20170301</enddate><creator>Lao, Hai-Ling</creator><creator>Liu, Fu-Hu</creator><creator>Lacey, Roy A.</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><general>Springer</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20170301</creationdate><title>Extracting kinetic freeze-out temperature and radial flow velocity from an improved Tsallis distribution</title><author>Lao, Hai-Ling ; Liu, Fu-Hu ; Lacey, Roy A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c346t-fa8f3a49f0fde1b2d476e3fffdfa6d51cc038a83092a9df8b94faa80748551d33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Collisions</topic><topic>Flow velocity</topic><topic>Gold</topic><topic>Hadrons</topic><topic>Heavy Ions</topic><topic>Large Hadron Collider</topic><topic>Lead</topic><topic>Nuclear Fusion</topic><topic>Nuclear Physics</topic><topic>Particle accelerators</topic><topic>Particle and Nuclear Physics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Radial flow</topic><topic>Regular Article - Theoretical Physics</topic><topic>Relativistic Heavy Ion Collider</topic><topic>Spectra</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lao, Hai-Ling</creatorcontrib><creatorcontrib>Liu, Fu-Hu</creatorcontrib><creatorcontrib>Lacey, Roy A.</creatorcontrib><creatorcontrib>State Univ. of New York (SUNY), Albany, NY (United States)</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>The European physical journal. A, Hadrons and nuclei</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lao, Hai-Ling</au><au>Liu, Fu-Hu</au><au>Lacey, Roy A.</au><aucorp>State Univ. of New York (SUNY), Albany, NY (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Extracting kinetic freeze-out temperature and radial flow velocity from an improved Tsallis distribution</atitle><jtitle>The European physical journal. A, Hadrons and nuclei</jtitle><stitle>Eur. Phys. J. A</stitle><date>2017-03-01</date><risdate>2017</risdate><volume>53</volume><issue>3</issue><spage>1</spage><epage>21</epage><pages>1-21</pages><artnum>44</artnum><issn>1434-6001</issn><eissn>1434-601X</eissn><abstract>.
We analyze the transverse-momentum (p
T
) spectra of identified particles (
π
±
,
K
±
,
p
, and
p
¯
) produced in gold-gold (Au-Au) and lead-lead (Pb-Pb) collisions over a
s
N
N
(center-of-mass energy per nucleon pair) range from 14.5 GeV (one of the Relativistic Heavy Ion Collider (RHIC) energies) to 2.76 TeV (one of the Large Hadron Collider (LHC) energies). For the spectra with a narrow p
T
range, an improved Tsallis distribution which is in fact the Tsallis distribution with radial flow is used. For the spectra with a wide p
T
range, a superposition of the improved Tsallis distribution and an inverse power law is used. Both the extracted kinetic freeze-out temperature (T
0
) and radial flow velocity (
β
T
) increase with the increase of
s
N
N
, which indicates a higher excitation and larger expansion of the interesting system at the LHC. Both the values of T
0
and
β
T
in central collisions are slightly larger than those in peripheral collisions, and they are independent of isospin and slightly dependent on mass.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1140/epja/i2017-12238-1</doi><tpages>21</tpages></addata></record> |
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issn | 1434-6001 1434-601X |
language | eng |
recordid | cdi_osti_scitechconnect_1536904 |
source | SpringerLink Journals |
subjects | Collisions Flow velocity Gold Hadrons Heavy Ions Large Hadron Collider Lead Nuclear Fusion Nuclear Physics Particle accelerators Particle and Nuclear Physics Physics Physics and Astronomy Radial flow Regular Article - Theoretical Physics Relativistic Heavy Ion Collider Spectra |
title | Extracting kinetic freeze-out temperature and radial flow velocity from an improved Tsallis distribution |
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