4,074 research outputs found
Generalizing the Coleman-Hill Theorem
Following the work of Khare {\it et al}, we show that the generalization to
systems with spontaneous symmetry breaking of the Coleman-Hill theorem to
one-loop order, can be extended to the case including fermions with the most
general interactions. Although the correction to the parity-odd part of the
vacuum polarization looks complicated in the Higgs phase, it turns out that the
correction to the Chern-Simons term is identical to that in the symmetric
phase, with the difference coming only from the contribution of the would be
Chern-Simons term. We also discuss the implication of our result to nonabelian
systems.Comment: 11 pages, uses phyzzx. Abstract and conclusion modified, new
reference adde
Detecting the Higgs Bosons of Minimal Supergravity with Muon Pairs
The prospects at the CERN LHC are investigated for the discovery via decays
into muon pairs of neutral Higgs bosons in the minimal supergravity model.
Promising results are found for the CP-odd pseudoscalar () and the heavier
CP-even scalar () Higgs bosons at large . For
\tan\beta \agt 10 and 100 GeV \alt m_A,m_H \alt 550 GeV, the and the
masses could be precisely reconstructed from the dimuon invariant mass.Comment: 12 pages, REVTEX, 4 figure
Confirming the LHC Higgs Discovery with WW
We investigate the prospects of observing a neutral Higgs boson decaying into
a pair of bosons (one real and the other virtual), followed by the
decays into or at the CERN Large Hadron Collider
(LHC). Assuming that the missing transverse energy comes solely from the
neutrino in decay, we can reconstruct the masses and then the Higgs
mass. At the LHC with a center of mass energy () of 8 TeV and an
integrated luminosity () of 25 fb, we can potentially establish a
signal. A discovery of for
TeV can be achieved with 6 fb. The discovery of
implies that the recently discovered new boson is a CP-even scalar
if its spin is zero. In addition, this channel will provide a good opportunity
to study the coupling
Self-Dual Chern-Simons Higgs Systems with an N=3 Extended Supersymmetry
We construct and study an N=3 supersymmetric Chern-Simons Higgs theory. This
theory is the maximally supersymmetric one containing the self-dual models with
a single gauge field and no gravity.Comment: 22 pages, phyzzx, CU-TP-56
Prospects for Higgs Searches with the Tri-bottom Channel in Unified SUSY Models
We investigate the prospects for the discovery of a neutral Higgs boson
produced in association with a quark, followed by the Higgs decay into a
pair of bottom quarks, , at the CERN Large
Hadron Collider (LHC) within the framework of unified supersymmetric models.
The Higgs boson can be a heavy scalar or a pseudoscalar .
Furthermore, this direct discovery channel is compared with the indirect Higgs
searches in the rare decay at hadron colliders. Promising
results are found for the minimal supergravity (mSUGRA) model, the anomaly
mediated supersymmetry breaking (AMSB) model, and the gauge mediated
supersymmetry breaking (GMSB) model. We find that the indirect search for
is complementary to the direct
search for with TeV and an integrated
luminosity () of 300 fb. In the AMSB and GMSB models, with fb covers a larger area in the parameter space
than . In addition, we present
constraints from and muon anomalous dipole moment () on the parameter space.Comment: REVTEX, 23 pages, 4 figure
Searching for the Higgs Bosons of Minimal Supersymmetry with Muon Pairs and Bottom Quarks
The prospects for the discovery of neutral Higgs bosons (phi^0 = H^0, h^0,
A^0) produced with bottom quarks via Higgs decays into muon pairs (pp --> b
b-bar phi^0 --> b b-bar mu mu-bar +X) at the CERN LHC are investigated in the
minimal supersymmetric model. The complete physics background from the
production of b b-bar mu mu-bar, b b-bar W^+ W^- (including t t-bar) and jj mu
mu-bar, j = g, u, d, s, c in the Standard Model is calculated with realistic
acceptance cuts. This discovery mode has a simple production mechanism from gg
--> b b-bar phi^0 with its cross section proportional to 1/cos^2(beta) and
could provide an opportunity to measure tan(beta) and the b b-bar phi^0
couplings. In addition, we compare the associated discovery mode above with the
inclusive discovery channel pp --> phi^0 --> mu mu-bar +X. Promising results
are found for the CP-odd pseudoscalar (A^0) and the heavier CP-even scalar
(H^0) Higgs bosons for tan(beta) equivalent to v_2/v_1 >~ 14 and m_A,m_H <~ 325
GeV.Comment: 12 pages, REVTeX, 4 Figure
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