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Azimuthal anisotropy of charged jet production in Pb-Pb collisions
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We present measurements of the azimuthal dependence of charged jet production in central and semi-central <span id="mmlsi1" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009958&_mathId=si1.gif&_user=111111111&_pii=S0370269315009958&_rdoc=1&_issn=03702693&md5=af3704114ca547b5a0517604f2f8bf64">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-S0370269315009958-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-S0370269315009958-si1.gif">script><span class="mathContainer hidden"><span class="mathCode">si1.gif" overflow="scroll">sqrt>sub>sNNsub>sqrt>=2.76 TeVspan>span>span> Pb&ndash;Pb collisions with respect to the second harmonic event plane, quantified as <span id="mmlsi3" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009958&_mathId=si3.gif&_user=111111111&_pii=S0370269315009958&_rdoc=1&_issn=03702693&md5=a502abb3ef571b344332c237a661101d">ss="imgLazyJSB inlineImage" height="20" width="37" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269315009958-si3.gif">script>style="vertical-align:bottom" width="37" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269315009958-si3.gif">script><span class="mathContainer hidden"><span class="mathCode">si3.gif" overflow="scroll">subsup>v2ch jetsubsup>span>span>span>. Jet finding is performed employing the anti-<span id="mmlsi4" class="mathmlsrc"><span class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009958&_mathId=si4.gif&_user=111111111&_pii=S0370269315009958&_rdoc=1&_issn=03702693&md5=8bde6446c7e4c21bf5d7e21865c1dbd1" title="Click to view the MathML source">k<sub>Tsub>span><span class="mathContainer hidden"><span class="mathCode">si4.gif" overflow="scroll">sub>kTsub>span>span>span> algorithm with a resolution parameter <span id="mmlsi5" class="mathmlsrc"><span class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009958&_mathId=si5.gif&_user=111111111&_pii=S0370269315009958&_rdoc=1&_issn=03702693&md5=f17e38ffc9bf41b4ab05059c2afe8ae2" title="Click to view the MathML source">R=0.2span><span class="mathContainer hidden"><span class="mathCode">si5.gif" overflow="scroll">R=0.2span>span>span> using charged tracks from the ALICE tracking system. The contribution of the azimuthal anisotropy of the underlying event is taken into account event-by-event. The remaining (statistical) region-to-region fluctuations are removed on an ensemble basis by unfolding the jet spectra for different event plane orientations independently. Significant non-zero <span id="mmlsi3" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009958&_mathId=si3.gif&_user=111111111&_pii=S0370269315009958&_rdoc=1&_issn=03702693&md5=a502abb3ef571b344332c237a661101d">ss="imgLazyJSB inlineImage" height="20" width="37" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269315009958-si3.gif">script>style="vertical-align:bottom" width="37" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269315009958-si3.gif">script><span class="mathContainer hidden"><span class="mathCode">si3.gif" overflow="scroll">subsup>v2ch jetsubsup>span>span>span> is observed in semi-central collisions (30&ndash;50% centrality) for <span id="mmlsi6" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009958&_mathId=si6.gif&_user=111111111&_pii=S0370269315009958&_rdoc=1&_issn=03702693&md5=2fa6848d63c95add4d7a510e3f1234bd">ss="imgLazyJSB inlineImage" height="20" width="145" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269315009958-si6.gif">script>style="vertical-align:bottom" width="145" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269315009958-si6.gif">script><span class="mathContainer hidden"><span class="mathCode">si6.gif" overflow="scroll">20<subsup>pTch jetsubsup><90 GeVstretchy="false">/cspan>span>span>. The azimuthal dependence of the charged jet production is similar to the dependence observed for jets comprising both charged and neutral fragments, and compatible with measurements of the <span id="mmlsi7" class="mathmlsrc"><span class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009958&_mathId=si7.gif&_user=111111111&_pii=S0370269315009958&_rdoc=1&_issn=03702693&md5=944f8b730bcac9bffb264c63b0082d73" title="Click to view the MathML source">v<sub>2sub>span><span class="mathContainer hidden"><span class="mathCode">si7.gif" overflow="scroll">sub>v2sub>span>span>span> of single charged particles at high <span id="mmlsi8" class="mathmlsrc"><span class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269315009958&_mathId=si8.gif&_user=111111111&_pii=S0370269315009958&_rdoc=1&_issn=03702693&md5=d326eba5bc19e18321ee2db7aae3cd7f" title="Click to view the MathML source">p<sub>Tsub>span><span class="mathContainer hidden"><span class="mathCode">si8.gif" overflow="scroll">sub>pTsub>span>span>span>. Good agreement between the data and predictions from JEWEL, an event generator simulating parton shower evolution in the presence of a dense QCD medium, is found in semi-central collisions.

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