The centrality dependence of the charged-particle p
seudorapidity den
sity mea
sured with ALICE in Pb&nda
sh;Pb colli
sion
s at <
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source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316000678&_mathId=si1.gif&_user=111111111&_pii=S0370269316000678&_rdoc=1&_issn=03702693&md5=a81ddaf5f532649da1d78a1e95bd4b8a">ss="imgLazyJSB inlineImage" height="15" width="105" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316000678-si1.gif">script>style="vertical-align:bottom" width="105" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269316000678-si1.gif">script><
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span>
span> over a broad p
seudorapidity range i
s pre
sented. Thi
s Letter extend
s the previou
s re
sult
s reported by ALICE to more peripheral colli
sion
s. No
strong change of the overall
shape of charged-particle p
seudorapidity den
sity di
stribution
s with centrality i
s ob
served, and when normali
sed to the number of participating nucleon
s in the colli
sion
s, the evolution over p
seudorapidity with centrality i
s likewi
se
small. The broad p
seudorapidity range (<
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science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269316000678&_mathId=
si2.gif&_u
ser=111111111&_pii=S0370269316000678&_rdoc=1&_i
ssn=03702693&md5=d532320d1e1e7bc9addbae5aef2f97f0" title="Click to view the MathML
source">&minu
s;3.5<η<5
span><
span cla
ss="mathContainer hidden"><
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span>
span>
span>) allow
s preci
se e
stimate
s of the total number of produced charged particle
s which we find to range from <
span id="mml
si3" cla
ss="mathml
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span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269316000678&_mathId=
si3.gif&_u
ser=111111111&_pii=S0370269316000678&_rdoc=1&_i
ssn=03702693&md5=ac8e6f94f0fcf75971ab8c3febefccbe" title="Click to view the MathML
source">162&plu
smn;22(
sy
st.)
span><
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span>
span> to <
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span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269316000678&_mathId=
si4.gif&_u
ser=111111111&_pii=S0370269316000678&_rdoc=1&_i
ssn=03702693&md5=93a2833ededa215eac67326147c44b4c" title="Click to view the MathML
source">17170&plu
smn;770(
sy
st.)
span><
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ss="mathContainer hidden"><
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span>
span> in 80&nda
sh;90% and 0&nda
sh;5% central colli
sion
s, re
spectively. The total charged-particle multiplicity i
s seen to approximately
scale with the number of participating nucleon
s in the colli
sion. Thi
s sugge
st
s that hard contribution
s to the charged-particle multiplicity are limited. The re
sult
s are compared to model
s which de
scribe <
span id="mml
si5" cla
ss="mathml
src"><
span cla
ss="formulatext
stixSupport mathImg" data-mathURL="/
science?_ob=MathURL&_method=retrieve&_eid=1-
s2.0-S0370269316000678&_mathId=
si5.gif&_u
ser=111111111&_pii=S0370269316000678&_rdoc=1&_i
ssn=03702693&md5=304588943ca60dc2f44d0d6b103554a3" title="Click to view the MathML
source">dN<
sub>ch
sub>/dη
span><
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ss="mathContainer hidden"><
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ss="mathCode">
span>
span>
span> at mid-rapidity in the mo
st central Pb&nda
sh;Pb colli
sion
s and it i
s found that the
se model
s do not capture all feature
s of the di
stribution
s.