3,190 research outputs found
With four Standard Model families, the LHC could discover the Higgs boson with a few fb^-1
The existence of a 4th SM family would produce a large enhancement of the
gluon fusion channel of Higgs boson production at hadron colliders. In this
case, the SM Higgs boson could be seen at the CERN Large Hadron Collider (LHC)
via the golden mode (H->4l) with an integral luminosity of only a few fb^-1.Comment: 7 pages, 2 figures, 2 tables, references updated in v
Has the anomalous single production of the fourth SM family quarks decaying into light Higgs boson been observed by CDF?
Superjet events observed by the CDF Collaboration are interpreted as
anomalous single production of the fourth SM family u_4 quark, decaying into a
new light scalar particle. The specific predictions of the proposed mechanism
are discussed.Comment: 5 pages, 1 tabl
Invariance quantum group of the fermionic oscillator
The fermionic oscillator defined by the algebraic relations cc^*+c^*c=1 and
c^{2}=0 admits the homogeneous group O(2) as its invariance group. We show
that, the structure of the inhomogeneous invariance group of this oscillator is
a quantum group.Comment: 7 A4 page
Anomalous single production of the fourth SM family quarks at Tevatron
Possible single productions of fourth family u_{4} and d_{4} quarks via
anomalous q_{4}qV interactions at Tevatron are studied. Signature of such
processes are discussed and compared with the recent results from Tevatron.Comment: 6 pages, 1 figure, 4 table
Impact of the relatively light fourth family neutrino on the Higgs boson search
The existence of a fourth fermion generation has mostly been considered as a
source of enhanced Higgs signals with respect to the 3 family Standard Model
predictions. However, a fourth Standard Model family neutrino could cause the
opposite situation. It is shown that relatively light fourth family neutrino
(2m_(nu_(4))<m_(H)) could drastically change the interpretation of the search
results for the Higgs boson, especially if m_(H)<170 GeV.Comment: 5 pages, 9 figure
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