A framework for Higgs characterisation

Artoisenet, P.; Ravindran, V.; Maltoni, F.; Torrielli, P.; Frederix, R.; Mathews, P.; Frixione, S.; Mandal, M.K.; Mawatari, K.; Demartin, F.; Zaro, M.; Seth, S.; de Aquino, P.

doi:10.1007/JHEP11(2013)043

Article
Report number	arXiv:1306.6464 ; CERN-PH-TH-2013-148 ; CERN-PH-TH-2013-148
Title	A framework for Higgs characterisation
Author(s)	Artoisenet, P. (NIKHEF, Amsterdam) ; de Aquino, P. (Brussels U., IIHE ; Intl. Solvay Inst., Brussels ; Vrije U., Brussels) ; Demartin, F. (Louvain U., CP3) ; Frederix, R. (CERN) ; Frixione, S. (CERN ; ITPP, Lausanne) ; Maltoni, F. (Louvain U., CP3) ; Mandal, M.K. (Harish-Chandra Res. Inst.) ; Mathews, P. (Saha Inst.) ; Mawatari, K. (Brussels U., IIHE ; Intl. Solvay Inst., Brussels ; Vrije U., Brussels) ; Ravindran, V. (IMSc, Chennai) ; Seth, S. (Saha Inst.) ; Torrielli, P. (Zurich U.) ; Zaro, M. (Louvain U., CP3)
Publication	2013
Imprint	27 Jun 2013
Number of pages	37
Note	Comments: 36 pages, 13 figures, 3 tables 36 pages, 13 figures, 3 tables; v2: some issues clarified and references added, version to appear in JHEP; v3: sign error of g_AVV in table 2 corrected
In:	JHEP 11 (2013) 043
DOI	10.1007/JHEP11(2013)043
Subject category	Particle Physics - Phenomenology
Abstract	We introduce a framework, based on an effective field theory approach, that allows one to perform characterisation studies of the boson recently discovered at the LHC, for all the relevant channels and in a consistent, systematic and accurate way. The production and decay of such a boson with various spin and parity assignments can be simulated by means of multi-parton, tree-level matrix elements and of next-to-leading order QCD calculations, both matched with parton showers. Several sample applications are presented which show, in particular, that beyond-leading-order effects in QCD have non-trivial phenomenological implications.
Copyright/License	Preprint: © 2013-2025 CERN (License: CC-BY-3.0)

$Normalised distributions in $pp\to X_0\to\mu^+\mu^-e^+e^-$ for different choices of $X_0ZZ$ couplings: the invariant masses of the two lepton pairs $m_1$, $m_2$ (with $m_1>m_2$), $\cos\theta^*$, $\cos\theta_1$, and $\Delta\phi$, as defined in ref.~\cite{Bolognesi:2012mm}. Event simulation performed at the leading order, parton level only (no shower/hadronisation).$ $Normalised distributions in $pp\to X_0\to\mu^+\mu^-e^+e^-$ for different choices of $X_0ZZ$ couplings: the invariant masses of the two lepton pairs $m_1$, $m_2$ (with $m_1>m_2$), $\cos\theta^*$, $\cos\theta_1$, and $\Delta\phi$, as defined in ref.~\cite{Bolognesi:2012mm}. Event simulation performed at the leading order, parton level only (no shower/hadronisation).$ $Normalised distributions in $pp\to X_0\to\mu^+\mu^-e^+e^-$ for different choices of $X_0ZZ$ couplings: the invariant masses of the two lepton pairs $m_1$, $m_2$ (with $m_1>m_2$), $\cos\theta^*$, $\cos\theta_1$, and $\Delta\phi$, as defined in ref.~\cite{Bolognesi:2012mm}. Event simulation performed at the leading order, parton level only (no shower/hadronisation).$ Show more plots

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Записът е създаден на 2013-06-28, последна промяна на 2024-09-12

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