Precision measurement of the ratio of the to lifetimes
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The LHCb measurement of the lifetime ratio of the hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269314003232&_mathId=si1.gif&_user=111111111&_pii=S0370269314003232&_rdoc=1&_issn=03702693&md5=c655beeaa08faa060a8ca257c266baec">height="18" width="18" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269314003232-si1.gif">hContainer hidden">hCode">h altimg="si1.gif" overflow="scroll">b0h> baryon to the hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269314003232&_mathId=si2.gif&_user=111111111&_pii=S0370269314003232&_rdoc=1&_issn=03702693&md5=0b99828119809b542144111ec9de7def">height="13" width="17" 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-S0370269314003232-si2.gif">hContainer hidden">hCode">h altimg="si2.gif" overflow="scroll">B¯0h> meson is updated using data corresponding to an integrated luminosity of 3.0 fb−1 collected using 7 and 8 TeV centre-of-mass energy pp   collisions at the LHC. The decay modes used are hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269314003232&_mathId=si3.gif&_user=111111111&_pii=S0370269314003232&_rdoc=1&_issn=03702693&md5=515550d5adde13167d04f6c263e0c4af">height="19" width="95" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269314003232-si3.gif">hContainer hidden">hCode">h altimg="si3.gif" overflow="scroll">b0hy="false">→Jhy="false">/pKh> and hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269314003232&_mathId=si4.gif&_user=111111111&_pii=S0370269314003232&_rdoc=1&_issn=03702693&md5=6dc3e442a3f9f72cc5d3e5d90e3654f8">height="16" width="105" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269314003232-si4.gif">hContainer hidden">hCode">h altimg="si4.gif" overflow="scroll">B¯0hy="false">→Jhy="false">/+Kh>, where the hmlsrc">hImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269314003232&_mathId=si5.gif&_user=111111111&_pii=S0370269314003232&_rdoc=1&_issn=03702693&md5=89c7826734d7f34be743c0c9ba60b77f" title="Click to view the MathML source">蟺+KhContainer hidden">hCode">h altimg="si5.gif" overflow="scroll">+Kh> mass is consistent with that of the hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269314003232&_mathId=si6.gif&_user=111111111&_pii=S0370269314003232&_rdoc=1&_issn=03702693&md5=b7019f307afce4a1e0490ab94ea60f9e">height="16" width="56" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269314003232-si6.gif">hContainer hidden">hCode">h altimg="si6.gif" overflow="scroll">K¯鈦?/mo>0hy="false">(892hy="false">)h> meson. The lifetime ratio is determined with unprecedented precision to be hmlsrc">hImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269314003232&_mathId=si7.gif&_user=111111111&_pii=S0370269314003232&_rdoc=1&_issn=03702693&md5=da8b6de480debaa5ad305b97c2a38f5a" title="Click to view the MathML source">0.974±0.006±0.004hContainer hidden">hCode">h altimg="si7.gif" overflow="scroll">0.974±0.006±0.004h>, where the first uncertainty is statistical and the second systematic. This result is in agreement with original theoretical predictions based on the heavy quark expansion. Using the current world average of the hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269314003232&_mathId=si2.gif&_user=111111111&_pii=S0370269314003232&_rdoc=1&_issn=03702693&md5=0b99828119809b542144111ec9de7def">height="13" width="17" 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-S0370269314003232-si2.gif">hContainer hidden">hCode">h altimg="si2.gif" overflow="scroll">B¯0h> lifetime, the hmlsrc">he MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269314003232&_mathId=si8.gif&_user=111111111&_pii=S0370269314003232&_rdoc=1&_issn=03702693&md5=678caf5a6a9e0f8ff22af32a6434d5a0">height="18" width="18" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0370269314003232-si8.gif">hContainer hidden">hCode">h altimg="si8.gif" overflow="scroll">b0h> lifetime is found to be hmlsrc">hImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269314003232&_mathId=si9.gif&_user=111111111&_pii=S0370269314003232&_rdoc=1&_issn=03702693&md5=1c51ed31fa23cfe35bda39b1676bd89b" title="Click to view the MathML source">1.479±0.009±0.010 pshContainer hidden">hCode">h altimg="si9.gif" overflow="scroll">1.479±0.009±0.010 psh>.

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