Differential measurement of signal strength of the Higgs boson in diphoton decay channel with the CMS detector

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• 作者：Swagata Mukherjee ; On behalf of the CMS Collaboration
• 关键词：Higgs ; Diphoton ; CMS
• 刊名：Nuclear and Particle Physics Proceedings
• 出版年：2016
• 出版时间：April-June 2016
• 年：2016
• 卷：273-275
• 期：Complete
• 页码：2442-2444
• 全文大小：240 K

文摘

CMS and ATLAS collaborations have observed a Higgs-like boson at around 125 GeV. Differential measurements of signal strength(μ  ) of the Higgs-like boson in diphoton decay channel is reported here. The analysis uses the entire dataset collected by the CMS experiment during the years 2011 and 2012. The dataset corresponds to integrated luminosities of formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S2405601415009086&_mathId=si1.gif&_user=111111111&_pii=S2405601415009086&_rdoc=1&_issn=24056014&md5=512d76c4630b198fd01057af923846e7" title="Click to view the MathML source">5.1fb⁻¹$5.1f{b}^{-1}$ at the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S2405601415009086&_mathId=si2.gif&_user=111111111&_pii=S2405601415009086&_rdoc=1&_issn=24056014&md5=2603aa22cc03526fa5a574b619d36fc3">the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S2405601415009086-si2.gif">$\sqrt{s}=7\text{TeV}$ and formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S2405601415009086&_mathId=si3.gif&_user=111111111&_pii=S2405601415009086&_rdoc=1&_issn=24056014&md5=3d4987d5e4a4cf053bde77a62fb42be4" title="Click to view the MathML source">19.7fb⁻¹$19.7f{b}^{-1}$ at the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S2405601415009086&_mathId=si4.gif&_user=111111111&_pii=S2405601415009086&_rdoc=1&_issn=24056014&md5=275a8601e196d8ad6c8d14c6d684a439">the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S2405601415009086-si4.gif">$\sqrt{s}=8\text{TeV}$. Spin hypothesis tests have been performed comparing the standard model Higgs boson with a spin-2 graviton-like model with minimal couplings. The hypothesis of the signal being the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S2405601415009086&_mathId=si5.gif&_user=111111111&_pii=S2405601415009086&_rdoc=1&_issn=24056014&md5=db22d559e5212bda04bc14dc29b2b2d5">the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S2405601415009086-si5.gif">$2_m^{+}$ is disfavoured.