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53,438
1 Fermiophobic Higgs
, 2002
"... This work describes the results of the searches for a Higgs boson decaying into gauge bosons carried out by the four LEP collaborations: ALEPH, DELPHI, L3 and OPAL. A lower bound of 109.7 GeV is set at 95 % confidence level on the mass of a fermiophobic Higgs boson decaying into photons. This mass l ..."
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This work describes the results of the searches for a Higgs boson decaying into gauge bosons carried out by the four LEP collaborations: ALEPH, DELPHI, L3 and OPAL. A lower bound of 109.7 GeV is set at 95 % confidence level on the mass of a fermiophobic Higgs boson decaying into photons. This mass
Decays of a fermiophobic Higgs
, 1994
"... We explore the phenomenology of a fermiophobic Higgs: a Higgs whose couplings to fermions are suppressed. We calculate the branching ratios of a Higgs decaying to γγ, W ∗ W ∗ , Z ∗ Z ∗ , Zb ¯ b, Zγ, γb ¯ b, and final states involving vector mesons like Υ, J/Ψ and ρ. In order to calculate these branc ..."
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Cited by 3 (0 self)
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these branching ratios we perform a complete oneloop renormalization of the vertices HZγ and Hγγ. The decay mode H → γγ is near unity for a Higgs below the W mass, which provides a clean way of discovering a light fermiophobic Higgs. Interesting modes involving the vector mesons Z, γ, ρ, J/Ψ, and Υ are carefully
Fermiophobic Higgs bosons at the Tevatron
, 1995
"... Higgs bosons with negligible couplings to fermions can arise in various non– minimal Higgs sectors. We show that such a particle could be discovered during the current run at the Tevatron, and would be evidence against a minimal supersymmetric Higgs sector. 1 ..."
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Cited by 1 (0 self)
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Higgs bosons with negligible couplings to fermions can arise in various non– minimal Higgs sectors. We show that such a particle could be discovered during the current run at the Tevatron, and would be evidence against a minimal supersymmetric Higgs sector. 1
application to a hidden fermiophobic Higgs.
, 1998
"... Three–body decays of Higgs bosons at LEP2 and ..."
Searching for a light Fermiophobic Higgs Boson at
, 2003
"... We propose new production mechanisms for light fermiophobic Higgs bosons (hf) with suppressed couplings to vector bosons (V) at the Fermilab Tevatron. These mechanisms (e.g. qq ′ → H ± hf) are complementary to the conventional process qq ′ → V hf, which suffers from a strong suppression of 1/tan 2 ..."
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We propose new production mechanisms for light fermiophobic Higgs bosons (hf) with suppressed couplings to vector bosons (V) at the Fermilab Tevatron. These mechanisms (e.g. qq ′ → H ± hf) are complementary to the conventional process qq ′ → V hf, which suffers from a strong suppression of 1/tan
SeibergWitten prepotential from instanton counting
, 2002
"... In my lecture I consider integrals over moduli spaces of supersymmetric gauge field configurations (instantons, Higgs bundles, torsion free sheaves). The applications are twofold: physical and mathematical; they involve supersymmetric quantum mechanics of Dparticles in various dimensions, direct co ..."
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Cited by 496 (9 self)
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In my lecture I consider integrals over moduli spaces of supersymmetric gauge field configurations (instantons, Higgs bundles, torsion free sheaves). The applications are twofold: physical and mathematical; they involve supersymmetric quantum mechanics of Dparticles in various dimensions, direct
Lowmass fermiophobic charged Higgs phenomenology in twoHiggsdoublet models
 JHEP 1409 (2014) 089. arXiv:1405.6639
"... After the recent discovery of a Higgslike boson, the possibility of an enlarged scalar sector arises as a natural question. Experimental searches for charged scalars have been already performed with negative results. We analyze the phenomenology associated with a fermiophobic charged Higgs (it does ..."
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Cited by 1 (1 self)
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After the recent discovery of a Higgslike boson, the possibility of an enlarged scalar sector arises as a natural question. Experimental searches for charged scalars have been already performed with negative results. We analyze the phenomenology associated with a fermiophobic charged Higgs (it
Macroscopic strings as heavy quarks in large N gauge theory and Antide Sitter supergravity
 PHYS. J. C22
"... Maldacena has put forward large N correspondence between superconformal field theories on the brane and antide Sitter supergravity in spacetime. We study some aspects of the correspondence between N = 4 superconformal gauge theory on D3brane and maximal supergravity on adS5 × S5 by introducing mac ..."
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Cited by 510 (1 self)
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Maldacena has put forward large N correspondence between superconformal field theories on the brane and antide Sitter supergravity in spacetime. We study some aspects of the correspondence between N = 4 superconformal gauge theory on D3brane and maximal supergravity on adS5 × S5 by introducing macroscopic strings as heavy (anti)quark probes. The macroscopic strings are semiinfinite Type IIB strings ending on D3brane worldvolume. We first study deformation and fluctuation of D3brane when a macroscopic BPS string is attached. We find that both dynamics and boundary conditions agree with those for macroscopic string in antide Sitter supergravity. As a byproduct we clarify how Polchinski’s Dirichlet and Neumann open string boundary conditions arise. We then study nonBPS macroscopic string antistring pair configuration as physical realization of heavy quark Wilson loop. We obtain Q ¯ Q static potential and again find agreements between the gauge theory and the supergravity results. By turning on RamondRamond zeroform potential, we also study θ vacuum angle dependence of the static potential. We finally discuss dynamical realization of loop equation via turning on local electric field and recoil of heavy quark thereof, and of heavy baryon via of Nprong string junction. Throughout comparisons of the correspondence, we emphasize crucial role played by ‘geometric duality ’ between coordinates perpendicular to D3brane and parallel ones, hinting a possible explanation of emergence of the entire adS5 spacetime.
The large N limit of superconformal field theories and supergravity
, 1998
"... We show that the large N limit of certain conformal field theories in various dimensions include in their Hilbert space a sector describing supergravity on the product of AntideSitter spacetimes, spheres and other compact manifolds. This is shown by taking some branes in the full M/string theory and ..."
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Cited by 5673 (21 self)
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We show that the large N limit of certain conformal field theories in various dimensions include in their Hilbert space a sector describing supergravity on the product of AntideSitter spacetimes, spheres and other compact manifolds. This is shown by taking some branes in the full M/string theory and then taking a low energy limit where the field theory on the brane decouples from the bulk. We observe that, in this limit, we can still trust the near horizon geometry for large N. The enhanced supersymmetries of the near horizon geometry correspond to the extra supersymmetry generators present in the superconformal group (as opposed to just the superPoincare group). The ’t Hooft limit of 3+1 N = 4 superYangMills at the conformal point is shown to contain strings: they are IIB strings. We conjecture that compactifications of M/string theory on various AntideSitter spacetimes is dual to various conformal field theories. This leads to a new proposal for a definition of Mtheory which could be extended to include five or four noncompact dimensions. 1
Superconformal field theory on threebranes at a CalabiYau singularity
 Nucl. Phys. B
, 1998
"... Just as parallel threebranes on a smooth manifold are related to string theory on AdS5 × S 5, parallel threebranes near a conical singularity are related to string theory on AdS5 × X5, for a suitable X5. For the example of the conifold singularity, for which X5 = (SU(2) × SU(2))/U(1), we argue that ..."
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Cited by 690 (37 self)
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Just as parallel threebranes on a smooth manifold are related to string theory on AdS5 × S 5, parallel threebranes near a conical singularity are related to string theory on AdS5 × X5, for a suitable X5. For the example of the conifold singularity, for which X5 = (SU(2) × SU(2))/U(1), we argue that string theory on AdS5 × X5 can be described by a certain N = 1 supersymmetric gauge theory which we describe in detail.
Results 1  10
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53,438