Academic Journal
Transverse momentum distributions and freeze-out parameters of ϕ meson in nuclear collisions.
| Τίτλος: | Transverse momentum distributions and freeze-out parameters of ϕ meson in nuclear collisions. |
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| Συγγραφείς: | Mir, Sameer Ahmad1,2 (AUTHOR) sameerphst@gmail.com, Uddin, Saeed1 (AUTHOR), Bashir, Inam-ul3 (AUTHOR) |
| Πηγή: | European Physical Journal A -- Hadrons & Nuclei. Mar2026, Vol. 62 Issue 3, p1-12. 12p. |
| Θεματικοί όροι: | *Momentum distributions, *Vector mesons, *Collisions (Nuclear physics), *Hydrodynamics, *Proton-proton interactions, *Large Hadron Collider |
| Περίληψη: | We investigate the transverse momentum distribution spectra of ϕ meson production from proton–proton (p+p), proton–nucleus (p+A) and nucleus–nucleus (A+A) collisions at various Large Hadron Collider center-of-mass collision energies ranging from s NN = 2.76–13 TeV for most central and peripheral collisions within a unified statistical thermal freeze-out model (USTFM). The comparison to experimental data on transverse momentum ( p T ) spectra from the above mentioned collisions enhances the understanding of freeze-out conditions. The freeze-out characteristics, including the kinetic freeze-out temperature (T), transverse flow velocity parameter ( β T 0 ), and velocity flow profile parameter (n), are extracted from various fits and analyzed within the context of thermal and statistical framework. We anchor the decoupling scale to statistical-hadronization systematics and fix the temperature at T = 152.0 ± 4.0 MeV across centralities at midrapidity, while fitting the collective sector via the transverse flow magnitude β T 0 and its profile index n. USTFM consistently couples longitudinal and transverse dynamics and contains the Blast-Wave (BW) limit, we perform a system- and energy-spanning analysis of ϕ spectra and quantify the evolution of β T 0 and n with system size and centrality. The collision energy ( s NN ) dependence of the freeze-out temperature is taken from the previous works where it is extracted by fitting the relative hadronic yields. The transverse flow velocity parameter decreases from the most central to peripheral collisions. The model calculation shows an excellent match with the experimental transverse momentum spectra of the ϕ meson up to approximately 4 GeV/c. The proposed model accounts for the influence of both longitudinal and transverse hydrodynamic flow, highlighting their roles in shaping the observed spectra and particle yields. [ABSTRACT FROM AUTHOR] |
| Βάση Δεδομένων: | Academic Search Index |
| FullText | Text: Availability: 0 CustomLinks: – Url: https://dx.doi.org/doi:10.1140/epja/s10050-026-01815-6 Name: EDS - Springer Nature Journals (s7799221) Category: fullText Text: View record at Springer – Url: https://resolver.ebsco.com/c/fiv2js/result?sid=EBSCO:asx&genre=article&issn=14346001&ISBN=&volume=62&issue=3&date=20260301&spage=1&pages=1-12&title=European Physical Journal A -- Hadrons & Nuclei&atitle=Transverse%20momentum%20distributions%20and%20freeze-out%20parameters%20of%20%CF%95%20meson%20in%20nuclear%20collisions.&aulast=Mir%2C%20Sameer%20Ahmad&id=DOI:10.1140/epja/s10050-026-01815-6 Name: Full Text Finder (for New FTF UI) (ns324271) Category: fullText Text: Full Text Finder MouseOverText: Full Text Finder |
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| Header | DbId: asx DbLabel: Academic Search Index An: 192983397 RelevancyScore: 1411 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 1411.07177734375 |
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| Items | – Name: Title Label: Title Group: Ti Data: Transverse momentum distributions and freeze-out parameters of ϕ meson in nuclear collisions. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mir%2C+Sameer+Ahmad%22">Mir, Sameer Ahmad</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> sameerphst@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Uddin%2C+Saeed%22">Uddin, Saeed</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bashir%2C+Inam-ul%22">Bashir, Inam-ul</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+A+--+Hadrons+%26+Nuclei%22">European Physical Journal A -- Hadrons & Nuclei</searchLink>. Mar2026, Vol. 62 Issue 3, p1-12. 12p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Momentum+distributions%22">Momentum distributions</searchLink><br />*<searchLink fieldCode="DE" term="%22Vector+mesons%22">Vector mesons</searchLink><br />*<searchLink fieldCode="DE" term="%22Collisions+%28Nuclear+physics%29%22">Collisions (Nuclear physics)</searchLink><br />*<searchLink fieldCode="DE" term="%22Hydrodynamics%22">Hydrodynamics</searchLink><br />*<searchLink fieldCode="DE" term="%22Proton-proton+interactions%22">Proton-proton interactions</searchLink><br />*<searchLink fieldCode="DE" term="%22Large+Hadron+Collider%22">Large Hadron Collider</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We investigate the transverse momentum distribution spectra of ϕ meson production from proton–proton (p+p), proton–nucleus (p+A) and nucleus–nucleus (A+A) collisions at various Large Hadron Collider center-of-mass collision energies ranging from s NN = 2.76–13 TeV for most central and peripheral collisions within a unified statistical thermal freeze-out model (USTFM). The comparison to experimental data on transverse momentum ( p T ) spectra from the above mentioned collisions enhances the understanding of freeze-out conditions. The freeze-out characteristics, including the kinetic freeze-out temperature (T), transverse flow velocity parameter ( β T 0 ), and velocity flow profile parameter (n), are extracted from various fits and analyzed within the context of thermal and statistical framework. We anchor the decoupling scale to statistical-hadronization systematics and fix the temperature at T = 152.0 ± 4.0 MeV across centralities at midrapidity, while fitting the collective sector via the transverse flow magnitude β T 0 and its profile index n. USTFM consistently couples longitudinal and transverse dynamics and contains the Blast-Wave (BW) limit, we perform a system- and energy-spanning analysis of ϕ spectra and quantify the evolution of β T 0 and n with system size and centrality. The collision energy ( s NN ) dependence of the freeze-out temperature is taken from the previous works where it is extracted by fitting the relative hadronic yields. The transverse flow velocity parameter decreases from the most central to peripheral collisions. The model calculation shows an excellent match with the experimental transverse momentum spectra of the ϕ meson up to approximately 4 GeV/c. The proposed model accounts for the influence of both longitudinal and transverse hydrodynamic flow, highlighting their roles in shaping the observed spectra and particle yields. [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1140/epja/s10050-026-01815-6 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1 Subjects: – SubjectFull: Momentum distributions Type: general – SubjectFull: Vector mesons Type: general – SubjectFull: Collisions (Nuclear physics) Type: general – SubjectFull: Hydrodynamics Type: general – SubjectFull: Proton-proton interactions Type: general – SubjectFull: Large Hadron Collider Type: general Titles: – TitleFull: Transverse momentum distributions and freeze-out parameters of ϕ meson in nuclear collisions. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mir, Sameer Ahmad – PersonEntity: Name: NameFull: Uddin, Saeed – PersonEntity: Name: NameFull: Bashir, Inam-ul IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 14346001 Numbering: – Type: volume Value: 62 – Type: issue Value: 3 Titles: – TitleFull: European Physical Journal A -- Hadrons & Nuclei Type: main |
| ResultId | 1 |