Measurement of the Higgs boson total decay width using the; <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline">; <mml:mrow>; <mml:mi>H</mml:mi>; <mml:mo stretchy="false">→</mml:mo>; <mml:mi>W</mml:mi>; <mml:mi>W</mml:mi>; <mml:mo stretchy="false">→</mml:mo>; <mml:mi>e</mml:mi>; <mml:mi>ν</mml:mi>; <mml:mi>μ</mml:mi>; <mml:mi>ν</mml:mi>; </mml:mrow>; </mml:math>; decay channel in proton-proton collisions at; <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline">; <mml:msqrt>; <mml:mi>s</mml:mi>; </mml:msqrt>; <mml:mo>=</mml:mo>; <mml:mn>13</mml:mn>; <mml:mtext> </mml:mtext>; <mml:mtext> </mml:mtext>; <mml:mi>TeV</mml:mi>; </mml:math> | CU Experts

; The Higgs boson (H) decay width is determined from the ratio of off- and on-shell production of; ; H; →; W; W; →; e; ν; μ; ν; ; using proton–proton collision data corresponding to an integrated luminosity of; ; 138; ; ; ; fb; ; −; 1; ; ; ; collected at; ; ; s; ; =; 13; ; ; TeV; ; by the CMS experiment at the Large Hadron Collider. The off-shell signal strength is measured as; ; ; μ; ; off; −; shell; ; ; =; ; 1.2; ; −; 0.7; ; ; +; 0.8; ; ; ; . The Higgs boson total decay width is; ; ; Γ; H; ; =; ; 3.9; ; −; 2.2; ; ; +; 2.7; ; ; ; ; MeV; ; , in agreement with the standard model prediction. The uncertainty in this result represents a factor of 3 improvement over the previous CMS result in this decay channel.;

Hayrapetyan A; Makarenko V; Tumasyan A; Adam W; Benato L; Bergauer T; Dragicevic M; Hussain PS; Jeitler M; Krammer N

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