Pseudorapidity and transverse-momentum distributions of charged particles in proton-proton collisions at
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- 作者：ALICE Collaboration
- 刊名：Physics Letters B
- 出版年：2016
- 出版时间：10 February 2016
- 年：2016
- 卷：753
- 期：Complete
- 页码：319-329
- 全文大小：1105 K
文摘
The pseudorapidity (η ) and transverse-momentum (pan id="mmlsi11" class="mathmlsrc">pan class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009788&_mathId=si11.gif&_user=111111111&_pii=S0370269315009788&_rdoc=1&_issn=03702693&md5=d2d211c01f252a712c30ecfd5b464626" title="Click to view the MathML source">pT pan>pan class="mathContainer hidden">pan class="mathCode"> pan> pan> pan>) distributions of charged particles produced in proton–proton collisions are measured at the centre-of-mass energy pan id="mmlsi1" class="mathmlsrc">pii=S0370269315009788&_rdoc=1&_issn=03702693&md5=1ea0c32d11bede802a71b9050704e35b">![View the MathML source]()
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p://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269315009788-si1.gif"> pt>pan class="mathContainer hidden">pan class="mathCode"> pan> pan> pan>. The pseudorapidity distribution in pan id="mmlsi3" class="mathmlsrc">pan class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009788&_mathId=si3.gif&_user=111111111&_pii=S0370269315009788&_rdoc=1&_issn=03702693&md5=f3c0006de24526029765aef4a509f38a" title="Click to view the MathML source">|η|<1.8 pan>pan class="mathContainer hidden">pan class="mathCode"> pan> pan> pan> is reported for inelastic events and for events with at least one charged particle in pan id="mmlsi10" class="mathmlsrc">pan class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009788&_mathId=si10.gif&_user=111111111&_pii=S0370269315009788&_rdoc=1&_issn=03702693&md5=ffa3efaf5d78e7cf227c9338e0b447bc" title="Click to view the MathML source">|η|<1 pan>pan class="mathContainer hidden">pan class="mathCode"> pan> pan> pan>. The pseudorapidity density of charged particles produced in the pseudorapidity region pan id="mmlsi5" class="mathmlsrc">pan class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009788&_mathId=si5.gif&_user=111111111&_pii=S0370269315009788&_rdoc=1&_issn=03702693&md5=046778b78971197d660a2ce4616fb836" title="Click to view the MathML source">|η|<0.5 pan>pan class="mathContainer hidden">pan class="mathCode"> pan> pan> pan> is pan id="mmlsi50" class="mathmlsrc">pan class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009788&_mathId=si50.gif&_user=111111111&_pii=S0370269315009788&_rdoc=1&_issn=03702693&md5=67195bec065de1d377ce9cca73c70f72" title="Click to view the MathML source">5.31±0.18 pan>pan class="mathContainer hidden">pan class="mathCode"> pan> pan> pan> and pan id="mmlsi7" class="mathmlsrc">pan class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009788&_mathId=si7.gif&_user=111111111&_pii=S0370269315009788&_rdoc=1&_issn=03702693&md5=d099703854200f5ec6c39aa88b544fd2" title="Click to view the MathML source">6.46±0.19 pan>pan class="mathContainer hidden">pan class="mathCode"> pan> pan> pan> for the two event classes, respectively. The transverse-momentum distribution of charged particles is measured in the range pan id="mmlsi8" class="mathmlsrc">pan class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009788&_mathId=si8.gif&_user=111111111&_pii=S0370269315009788&_rdoc=1&_issn=03702693&md5=9bd5846240873d3ceeb5fa7b3a2e2b00" title="Click to view the MathML source">0.15<pT<20 GeV/c pan>pan class="mathContainer hidden">pan class="mathCode"> pan> pan> pan> and pan id="mmlsi15" class="mathmlsrc">pan class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009788&_mathId=si15.gif&_user=111111111&_pii=S0370269315009788&_rdoc=1&_issn=03702693&md5=cf7c1ef2e614bae11d3efe4193af5556" title="Click to view the MathML source">|η|<0.8 pan>pan class="mathContainer hidden">pan class="mathCode"> pan> pan> pan> for events with at least one charged particle in pan id="mmlsi10" class="mathmlsrc">pan class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009788&_mathId=si10.gif&_user=111111111&_pii=S0370269315009788&_rdoc=1&_issn=03702693&md5=ffa3efaf5d78e7cf227c9338e0b447bc" title="Click to view the MathML source">|η|<1 pan>pan class="mathContainer hidden">pan class="mathCode"> pan> pan> pan>. The evolution of the transverse momentum spectra of charged particles is also investigated as a function of event multiplicity. The results are compared with calculations from PYTHIA and EPOS Monte Carlo generators.