Singular ways to search for the Higgs boson
A bstract The discovery or exclusion of the fundamental standard scalar is a hot topic, given the data of LEP, the Tevatron and the LHC, as well as the advanced status of the pertinent theoretical calculations. With the current statistics at the hadron colliders, the workhorse decay channel, at all...
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Published in | The journal of high energy physics Vol. 2012; no. 6 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.06.2012
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | A
bstract
The discovery or exclusion of the fundamental standard scalar is a hot topic, given the data of LEP, the Tevatron and the LHC, as well as the advanced status of the pertinent theoretical calculations. With the current statistics at the hadron colliders, the workhorse decay channel, at all relevant
H
masses, is
H
→
W W,
followed by
W
→
ℓν
,
ℓ
=
e
or
μ
. Using phase-space singularity techniques, we construct and study a plethora of “singularity variables” meant to facilitate the difficult tasks of separating signal and backgrounds and of measuring the mass of a putative signal. The simplest singularity variables are not invariant under boosts along the
pp
or
axes and the simulation of their distributions requires a good understanding of parton distribution functions, perhaps not a serious shortcoming during the boson hunting season. The derivation of longitudinally boost-invariant variables, which are functions of the four charged-lepton observables that share this invariance, is quite elaborate. But their use is simple and they are, in a kinematical sense, optimal. |
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ISSN: | 1029-8479 1029-8479 |
DOI: | 10.1007/JHEP06(2012)091 |