Inconsistencies in, and short pathlength correction to, RAA(pT) in A+A and p+A collisions
We present the first leading hadron suppression predictions in Pb + Pb and p + Pb collisions from a convolved radiative and collisional energy loss model in which partons propagate through a realistic background and in which the radiative energy loss receives a short pathlength correction. We find t...
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| Veröffentlicht in: | The European physical journal. C, Particles and fields Particles and fields, 2023-11, Vol.83 (11), p.1060 |
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| creator | Faraday, Coleridge Grindrod, Antonia Horowitz, W. A. |
| description | We present the first leading hadron suppression predictions in
Pb
+
Pb
and
p
+
Pb
collisions from a convolved radiative and collisional energy loss model in which partons propagate through a realistic background and in which the radiative energy loss receives a short pathlength correction. We find that the short pathlength correction is small for
D
and
B
meson
R
AA
(
p
T
)
in both
Pb
+
Pb
and
p
+
Pb
collisions. However the short pathlength correction leads to a surprisingly large reduction in suppression for
π
mesons in
p
+
Pb
and even
Pb
+
Pb
collisions. We systematically check the consistency of the assumptions used in the radiative energy loss derivation-such as collinearity, softness, and large formation time-with the final numerical model. While collinearity and softness are self-consistently satisfied in the final numerics, we find that the large formation time approximation breaks down at modest to high momenta
p
T
≳
30
GeV
. We find that both the size of the small pathlength correction to
R
AA
(
p
T
)
and the
p
T
at which the large formation time assumption breaks down are acutely sensitive to the chosen distribution of scattering centers in the plasma. |
| doi_str_mv | 10.1140/epjc/s10052-023-12234-y |
| format | Article |
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Pb
+
Pb
and
p
+
Pb
collisions from a convolved radiative and collisional energy loss model in which partons propagate through a realistic background and in which the radiative energy loss receives a short pathlength correction. We find that the short pathlength correction is small for
D
and
B
meson
R
AA
(
p
T
)
in both
Pb
+
Pb
and
p
+
Pb
collisions. However the short pathlength correction leads to a surprisingly large reduction in suppression for
π
mesons in
p
+
Pb
and even
Pb
+
Pb
collisions. We systematically check the consistency of the assumptions used in the radiative energy loss derivation-such as collinearity, softness, and large formation time-with the final numerical model. While collinearity and softness are self-consistently satisfied in the final numerics, we find that the large formation time approximation breaks down at modest to high momenta
p
T
≳
30
GeV
. We find that both the size of the small pathlength correction to
R
AA
(
p
T
)
and the
p
T
at which the large formation time assumption breaks down are acutely sensitive to the chosen distribution of scattering centers in the plasma.</description><identifier>ISSN: 1434-6044</identifier><identifier>EISSN: 1434-6052</identifier><identifier>DOI: 10.1140/epjc/s10052-023-12234-y</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Approximation ; Astronomy ; Astrophysics and Cosmology ; Central limit theorem ; Collinearity ; Collisions ; Elementary Particles ; Energy ; Fluid mechanics ; Hadrons ; Heavy Ions ; Mathematical models ; Measurement Science and Instrumentation ; Nuclear Energy ; Nuclear Physics ; Numerical models ; Partons ; Physicists ; Physics ; Physics and Astronomy ; Pions ; Quantum Field Theories ; Quantum Field Theory ; Quarks ; Radiation ; Regular Article - Theoretical Physics ; Softness ; String Theory</subject><ispartof>The European physical journal. C, Particles and fields, 2023-11, Vol.83 (11), p.1060</ispartof><rights>The Author(s) 2023</rights><rights>The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0003-3063-148X ; 0000-0001-5804-2738 ; 0009-0004-6515-311X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1140/epjc/s10052-023-12234-y$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://doi.org/10.1140/epjc/s10052-023-12234-y$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,860,27901,27902,41096,41464,42165,42533,51294,51551</link.rule.ids></links><search><creatorcontrib>Faraday, Coleridge</creatorcontrib><creatorcontrib>Grindrod, Antonia</creatorcontrib><creatorcontrib>Horowitz, W. A.</creatorcontrib><title>Inconsistencies in, and short pathlength correction to, RAA(pT) in A+A and p+A collisions</title><title>The European physical journal. C, Particles and fields</title><addtitle>Eur. Phys. J. C</addtitle><description>We present the first leading hadron suppression predictions in
Pb
+
Pb
and
p
+
Pb
collisions from a convolved radiative and collisional energy loss model in which partons propagate through a realistic background and in which the radiative energy loss receives a short pathlength correction. We find that the short pathlength correction is small for
D
and
B
meson
R
AA
(
p
T
)
in both
Pb
+
Pb
and
p
+
Pb
collisions. However the short pathlength correction leads to a surprisingly large reduction in suppression for
π
mesons in
p
+
Pb
and even
Pb
+
Pb
collisions. We systematically check the consistency of the assumptions used in the radiative energy loss derivation-such as collinearity, softness, and large formation time-with the final numerical model. While collinearity and softness are self-consistently satisfied in the final numerics, we find that the large formation time approximation breaks down at modest to high momenta
p
T
≳
30
GeV
. We find that both the size of the small pathlength correction to
R
AA
(
p
T
)
and the
p
T
at which the large formation time assumption breaks down are acutely sensitive to the chosen distribution of scattering centers in the plasma.</description><subject>Approximation</subject><subject>Astronomy</subject><subject>Astrophysics and Cosmology</subject><subject>Central limit theorem</subject><subject>Collinearity</subject><subject>Collisions</subject><subject>Elementary Particles</subject><subject>Energy</subject><subject>Fluid mechanics</subject><subject>Hadrons</subject><subject>Heavy Ions</subject><subject>Mathematical models</subject><subject>Measurement Science and Instrumentation</subject><subject>Nuclear Energy</subject><subject>Nuclear Physics</subject><subject>Numerical models</subject><subject>Partons</subject><subject>Physicists</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Pions</subject><subject>Quantum Field Theories</subject><subject>Quantum Field Theory</subject><subject>Quarks</subject><subject>Radiation</subject><subject>Regular Article - Theoretical Physics</subject><subject>Softness</subject><subject>String Theory</subject><issn>1434-6044</issn><issn>1434-6052</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>BENPR</sourceid><recordid>eNpFkMtKAzEUQIMoWKvfYMCNYsfmNdN0ORQfhYIgXbkJmUzSThmSmMRF_8Zv8cvMtKKbey-Xcx8cAK4xesCYoan2OzWNGKGSFIjQAhNCWbE_ASPMclHl_ulfzdg5uIhxhxAiDPEReF9a5WzsYtJWdTrCzk6gtC2MWxcS9DJte203aQuVC0Gr1DkLk5vAt7q-9eu7zH9_1ff1YcbnrFzfdzFT8RKcGdlHffWbx2D99LhevBSr1-flol4VHrPZviBNY1pMDSllNUclbtqZrireNKziknJtyEzydogtxSS_baiS0piGIFXqOR2Dm-NaH9zHp45J7NxnsPmiIHyOq7LCaKD4kYo-dHajwz-FkRhEikGkOIoUWaQ4iBR7-gOhdGjU</recordid><startdate>20231101</startdate><enddate>20231101</enddate><creator>Faraday, Coleridge</creator><creator>Grindrod, Antonia</creator><creator>Horowitz, W. 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A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p147y-2bbfd13f25a69051bd7e668bb468a38ef27a8df27ad312024f3caaffb20c5e93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Approximation</topic><topic>Astronomy</topic><topic>Astrophysics and Cosmology</topic><topic>Central limit theorem</topic><topic>Collinearity</topic><topic>Collisions</topic><topic>Elementary Particles</topic><topic>Energy</topic><topic>Fluid mechanics</topic><topic>Hadrons</topic><topic>Heavy Ions</topic><topic>Mathematical models</topic><topic>Measurement Science and Instrumentation</topic><topic>Nuclear Energy</topic><topic>Nuclear Physics</topic><topic>Numerical models</topic><topic>Partons</topic><topic>Physicists</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Pions</topic><topic>Quantum Field Theories</topic><topic>Quantum Field Theory</topic><topic>Quarks</topic><topic>Radiation</topic><topic>Regular Article - Theoretical Physics</topic><topic>Softness</topic><topic>String Theory</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Faraday, Coleridge</creatorcontrib><creatorcontrib>Grindrod, Antonia</creatorcontrib><creatorcontrib>Horowitz, W. 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C, Particles and fields</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Faraday, Coleridge</au><au>Grindrod, Antonia</au><au>Horowitz, W. A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Inconsistencies in, and short pathlength correction to, RAA(pT) in A+A and p+A collisions</atitle><jtitle>The European physical journal. C, Particles and fields</jtitle><stitle>Eur. Phys. J. C</stitle><date>2023-11-01</date><risdate>2023</risdate><volume>83</volume><issue>11</issue><spage>1060</spage><pages>1060-</pages><issn>1434-6044</issn><eissn>1434-6052</eissn><abstract>We present the first leading hadron suppression predictions in
Pb
+
Pb
and
p
+
Pb
collisions from a convolved radiative and collisional energy loss model in which partons propagate through a realistic background and in which the radiative energy loss receives a short pathlength correction. We find that the short pathlength correction is small for
D
and
B
meson
R
AA
(
p
T
)
in both
Pb
+
Pb
and
p
+
Pb
collisions. However the short pathlength correction leads to a surprisingly large reduction in suppression for
π
mesons in
p
+
Pb
and even
Pb
+
Pb
collisions. We systematically check the consistency of the assumptions used in the radiative energy loss derivation-such as collinearity, softness, and large formation time-with the final numerical model. While collinearity and softness are self-consistently satisfied in the final numerics, we find that the large formation time approximation breaks down at modest to high momenta
p
T
≳
30
GeV
. We find that both the size of the small pathlength correction to
R
AA
(
p
T
)
and the
p
T
at which the large formation time assumption breaks down are acutely sensitive to the chosen distribution of scattering centers in the plasma.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1140/epjc/s10052-023-12234-y</doi><orcidid>https://orcid.org/0000-0003-3063-148X</orcidid><orcidid>https://orcid.org/0000-0001-5804-2738</orcidid><orcidid>https://orcid.org/0009-0004-6515-311X</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Approximation Astronomy Astrophysics and Cosmology Central limit theorem Collinearity Collisions Elementary Particles Energy Fluid mechanics Hadrons Heavy Ions Mathematical models Measurement Science and Instrumentation Nuclear Energy Nuclear Physics Numerical models Partons Physicists Physics Physics and Astronomy Pions Quantum Field Theories Quantum Field Theory Quarks Radiation Regular Article - Theoretical Physics Softness String Theory |
| title | Inconsistencies in, and short pathlength correction to, RAA(pT) in A+A and p+A collisions |
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