Scaling Properties of the Mean Multiplicity and Pseudorapidity Density in e+e-, e+p, p+p, p+A and A+A(B) Collisions

The charged-particle pseudorapidity density (dN(ch)/d eta) for p((p) over bar)+p, p+A and A+A(B) collisions and the mean multiplicity [ N-ch ] for e(-)+e(+), e(+/-)+p, and p((p) over bar)+p collisions are studied for a wide range of beam energies (root s). Characteristic scaling patterns are observe...

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Formátum: folyóiratcikk
Megjelenés: 2018
Online elérés:http://hdl.handle.net/10831/48874
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spelling edit-10831-488742020-08-10T09:04:00Z Scaling Properties of the Mean Multiplicity and Pseudorapidity Density in e+e-, e+p, p+p, p+A and A+A(B) Collisions Roy, A Lacey Peifeng, Liu Niseem, Magdy Máté, Csanád Benjamin, Schweid Nuggehalli, N Ajitanand John, Alexander Robert, Pak The charged-particle pseudorapidity density (dN(ch)/d eta) for p((p) over bar)+p, p+A and A+A(B) collisions and the mean multiplicity < N-ch > for e(-)+e(+), e(+/-)+p, and p((p) over bar)+p collisions are studied for a wide range of beam energies (root s). Characteristic scaling patterns are observed for both dN(ch)/d eta and < N-ch >, consistent with a thermal particle production mechanism for the bulk of the soft particles created in all of these systems. The scaling patterns found also validate an essential role for quark participants in these collisions. The measured values for dN(ch)/d eta and < N-ch > are observed to factorize into contributions that depend on log (root s) and the number of nucleon or quark participant pairs N-pp. The quantification of these contributions gives expressions that serve to systematize dN(ch)/d eta and < N-ch > measurements spanning nearly 4 orders of magnitude in root s and to predict their values as a function of root s and N-pp. 2018 info:eu-repo/semantics/article http://hdl.handle.net/10831/48874 doi:10.3390/universe4010022 elte:000424097100018 elte:85053153907 elte:3329721 elte:1 elte:UNIVERSE elte:UNIVERSE elte:4 elte:10067248 info:eu-repo/semantics/openAccess application/pdf LOMS: https://edit.elte.hu/xmlui/bitstream/10831/48874/1/Scaling%20properties%20of%20the%20mean%20multiplicity%20and%20pseudorapidit.pdf
institution L_EDIT
description The charged-particle pseudorapidity density (dN(ch)/d eta) for p((p) over bar)+p, p+A and A+A(B) collisions and the mean multiplicity [ N-ch ] for e(-)+e(+), e(+/-)+p, and p((p) over bar)+p collisions are studied for a wide range of beam energies (root s). Characteristic scaling patterns are observed for both dN(ch)/d eta and [ N-ch ], consistent with a thermal particle production mechanism for the bulk of the soft particles created in all of these systems. The scaling patterns found also validate an essential role for quark participants in these collisions. The measured values for dN(ch)/d eta and [ N-ch ] are observed to factorize into contributions that depend on log (root s) and the number of nucleon or quark participant pairs N-pp. The quantification of these contributions gives expressions that serve to systematize dN(ch)/d eta and [ N-ch ] measurements spanning nearly 4 orders of magnitude in root s and to predict their values as a function of root s and N-pp.
format Journal Article
physical application/pdf
author Roy, A Lacey
spellingShingle Roy, A Lacey
Scaling Properties of the Mean Multiplicity and Pseudorapidity Density in e+e-, e+p, p+p, p+A and A+A(B) Collisions
author_facet Roy, A Lacey
Peifeng, Liu
Niseem, Magdy
Máté, Csanád
Benjamin, Schweid
Nuggehalli, N Ajitanand
John, Alexander
Robert, Pak
author2 Peifeng, Liu
Niseem, Magdy
Máté, Csanád
Benjamin, Schweid
Nuggehalli, N Ajitanand
John, Alexander
Robert, Pak
title Scaling Properties of the Mean Multiplicity and Pseudorapidity Density in e+e-, e+p, p+p, p+A and A+A(B) Collisions
title_short Scaling Properties of the Mean Multiplicity and Pseudorapidity Density in e+e-, e+p, p+p, p+A and A+A(B) Collisions
title_full Scaling Properties of the Mean Multiplicity and Pseudorapidity Density in e+e-, e+p, p+p, p+A and A+A(B) Collisions
title_fullStr Scaling Properties of the Mean Multiplicity and Pseudorapidity Density in e+e-, e+p, p+p, p+A and A+A(B) Collisions
title_full_unstemmed Scaling Properties of the Mean Multiplicity and Pseudorapidity Density in e+e-, e+p, p+p, p+A and A+A(B) Collisions
title_sort scaling properties of the mean multiplicity and pseudorapidity density in e+e-, e+p, p+p, p+a and a+a(b) collisions
publishDate 2018
publishDateSort 2018
url http://hdl.handle.net/10831/48874
first_indexed 2020-08-10T09:04:00Z
last_indexed 2023-09-01T11:10:43Z
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