8th LNF Mini-workshop series: Challenges in Higgs Phenomenology
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Europe/Rome
Aula Bruno Touschek (INFN - Laboratori Nazionali di Frascati)
Aula Bruno Touschek
INFN - Laboratori Nazionali di Frascati
Via Enrico Fermi, 40
00044 Frascati
(Roma)
Gennaro Corcella(LNF), Manuela Boscolo(LNF)
Descrizione
A few months ago the two LHC experiments ATLAS and CMS announced that they had independently discovered a previously undetected particle, of mass about 125 GeV, whose phenomenology is close to the one predicted by the Standard Model for the Higgs boson.
The analysis of new data has confirmed this observation and allowed the first measurement of the Higgs properties, such as its mass, spin and couplings.
From the theoretical viewpoint, the evidence of a Higgs with a 125 GeV mass strongly constrains the New Physics models proposed to solve the Standard Model drawbacks, such as the hierarchy problem.
Furthermore, the existing calculations and Monte Carlo codes for the Standard Model Higgs signals and backgrounds have been continuously improved.
The Mini-workshop `Challenges in Higgs phenomenology' will address the above issues and the recent results on the Higgs boson searches at 7 and 8 TeV will be presented by both CMS and ATLAS collaborations.
On the theoretical side, special attention will be paid to Higgs production in vector boson fusion and to the role played by the inclusion of higher-order radiative corrections.
I will discuss the phenomenology of Higgs boson production via vector boson fusion (VBF), as well as the impact of anomalous couplings and next-to-leading order corrections on the production cross section and kinematic distributions.
I will also discuss the calculation of the radiative corrections for electroweak Higgs
boson plus three-jet production (VBF plus a jet) and its relevancy in the computation of the central jet veto efficiency.
I will present the status of the Standard Model Higgs boson search at the CMS experiment at the LHC. The results are based on proton-proton collisions data corresponding to integrated luminosities of up to 5.1/fb at the centre-of-mass energy of TeV and 12.2/fb at 8 TeV. The observation of a new boson at a mass near 125 GeV has been confirmed by the analysis of the new data and first measurements of the boson properties have been delivered.
Relatore:
Francesco Fabozzi(NA)
Slides
3
Status of the Standard Model Higgs boson searches with the ATLAS detector
I will present the results, based on proton-proton collision data recorded at a centre-of-mass energy of 7 TeV in 2011 and 8 TeV in 2012, for the observation of a new Higgs-like particle at 125 GeV.
I will also discuss the first measurements of its properties, such as its mass, couplings, spin and CP values.
