Publications (2)0 Total impact
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ABSTRACT: We first build a minimal model of vector-like quarks where the dominant Higgs
boson production process at LHC -- the gluon fusion -- can be significantly
suppressed, being motivated by the recent stringent constraints from the search
for direct Higgs production over a wide Higgs mass range. Within this model,
compatible with the present experimental constraints on direct Higgs searches,
we demonstrate that the Higgs ($h$) production via a heavy vector-like
top-partner ($t_2$) decay, $pp \to t_2 \bar t_2$, $t_2\to t h$, allows to
discover a Higgs boson at the LHC and measure its mass, through the decay
channels $h\to \gamma\gamma$ or $h\to ZZ$. We also comment on the recent hint
in LHC data from a possible $\sim 125$ GeV Higgs scalar, in the presence of
heavy vector-like top quarks.
04/2012;
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G. Brooijmans,
B. Gripaios,
F. Moortgat,
J. Santiago,
P. Skands,
D. Albornoz Vásquez,
B. C. Allanach,
A. Alloul,
A. Arbey,
A. Azatov, [......],
D. G. E. Walker,
A. Weiler,
S. M. West,
C. D. White,
A. J. Williams,
A. Wingerter,
C. Wymant,
J. -H. Yu,
C. -P. Yuan,
D. Zerwas
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ABSTRACT: We present the activities of the "New Physics" working group for the "Physics
at TeV Colliders" workshop (Les Houches, France, 30 May-17 June, 2011). Our
report includes new agreements on formats for interfaces between computational
tools, new tool developments, important signatures for searches at the LHC,
recommendations for presentation of LHC search results, as well as additional
phenomenological studies.
03/2012;
