First study of the CP-violating phase and decay-width difference in decays
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A time-dependent angular analysis of <span id="mmlsi1" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316305226&_mathId=si1.gif&_user=111111111&_pii=S0370269316305226&_rdoc=1&_issn=03702693&md5=af5298c521eb850c281f70e1ef92e7f0">ss="imgLazyJSB inlineImage" height="17" width="86" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316305226-si1.gif">script>style="vertical-align:bottom" width="86" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269316305226-si1.gif">script><span class="mathContainer hidden"><span class="mathCode">si1.gif" overflow="scroll">subsup>Bs0subsup>stretchy="false">→ψstretchy="false">(2Sstretchy="false">)ϕspan>span>span> decays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of <span id="mmlsi16" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316305226&_mathId=si16.gif&_user=111111111&_pii=S0370269316305226&_rdoc=1&_issn=03702693&md5=26629ba5f05ef5491799399403726f19">ss="imgLazyJSB inlineImage" height="14" width="48" 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-S0370269316305226-si16.gif">script>style="vertical-align:bottom" width="48" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269316305226-si16.gif">script><span class="mathContainer hidden"><span class="mathCode">si16.gif" overflow="scroll">3.0space width="0.2em">space>sup>fb&minus;1sup>span>span>span> collected during Run 1 of the LHC. The CP  -violating phase and decay-width difference of the <span id="mmlsi179" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316305226&_mathId=si179.gif&_user=111111111&_pii=S0370269316305226&_rdoc=1&_issn=03702693&md5=12230061d470949a8a4a9690fd9c70b4">ss="imgLazyJSB inlineImage" height="17" width="17" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316305226-si179.gif">script>style="vertical-align:bottom" width="17" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269316305226-si179.gif">script><span class="mathContainer hidden"><span class="mathCode">si179.gif" overflow="scroll">subsup>Bs0subsup>span>span>span> system are measured to be <span id="mmlsi4" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316305226&_mathId=si4.gif&_user=111111111&_pii=S0370269316305226&_rdoc=1&_issn=03702693&md5=f30428e4d550321c1678b9029158e0bb">ss="imgLazyJSB inlineImage" height="19" width="152" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316305226-si4.gif">script>style="vertical-align:bottom" width="152" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269316305226-si4.gif">script><span class="mathContainer hidden"><span class="mathCode">si4.gif" overflow="scroll">sub>ϕssub>=subsup>0.23&minus;0.28+0.29subsup>&plusmn;0.02space width="0.2em">space>radspan>span>span> and <span id="mmlsi5" class="mathmlsrc">source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316305226&_mathId=si5.gif&_user=111111111&_pii=S0370269316305226&_rdoc=1&_issn=03702693&md5=45294b831db949d5bf74b33d8b7287a5">ss="imgLazyJSB inlineImage" height="19" width="191" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269316305226-si5.gif">script>style="vertical-align:bottom" width="191" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0370269316305226-si5.gif">script><span class="mathContainer hidden"><span class="mathCode">si5.gif" overflow="scroll">Δsub>Γssub>=subsup>0.066&minus;0.044+0.041subsup>&plusmn;0.007space width="0.2em">space>sup>ps&minus;1sup>span>span>span>, respectively, where the first uncertainty is statistical and the second systematic. This is the first time that <span id="mmlsi10" class="mathmlsrc"><span class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316305226&_mathId=si10.gif&_user=111111111&_pii=S0370269316305226&_rdoc=1&_issn=03702693&md5=c7691096a9966575cde8c9c6202c699c" title="Click to view the MathML source">ϕ<sub>ssub>span><span class="mathContainer hidden"><span class="mathCode">si10.gif" overflow="scroll">sub>ϕssub>span>span>span> and <span id="mmlsi133" class="mathmlsrc"><span class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316305226&_mathId=si133.gif&_user=111111111&_pii=S0370269316305226&_rdoc=1&_issn=03702693&md5=1e4fcbd023b652949f0f051cf703b261" title="Click to view the MathML source">ΔΓ<sub>ssub>span><span class="mathContainer hidden"><span class="mathCode">si133.gif" overflow="scroll">Δsub>Γssub>span>span>span> have been measured in a decay containing the <span id="mmlsi56" class="mathmlsrc"><span class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316305226&_mathId=si56.gif&_user=111111111&_pii=S0370269316305226&_rdoc=1&_issn=03702693&md5=4665416de8f1092f2090a62ab2b48a9e" title="Click to view the MathML source">ψ(2S)span><span class="mathContainer hidden"><span class="mathCode">si56.gif" overflow="scroll">ψstretchy="false">(2Sstretchy="false">)span>span>span> resonance.

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