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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Online elérés: | http://hdl.handle.net/10831/48874 |
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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 |
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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. |
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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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1775825787511898112 |
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13,367411 |