Exotica and the confining flux

Kuti, Julius

doi:10.1016/s0920-5632(99)85008-7

Cited by 29 publications

(27 citation statements)

References 39 publications

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“…The spectrum of stable bound states includes several glueballs with different quantum numbers J P C . Some of these glueballs have been studied in some detail in various contexts; see for example [13,14,15,16,17,18,19] and a recent review [20]. The masses of the v-glueballs are determined by the confinement scale Λ v or, equivalently, the string tension σ through the relationship m 0 ++ ≈ 7Λ v ≈ 3.7σ.…”

Section: Introductionmentioning

confidence: 99%

Pure-glue hidden valleys through the Higgs portal

Juknevich¹

2010

J. High Energ. Phys.

100

152

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We consider the possibility that the Higgs boson can act as a link to a hidden sector in the context of pure-glue hidden valley models. In these models the standard model is weakly coupled, through loops of heavy messengers fields, to a hidden sector whose low energy dynamics is described by a pure-Yang-Mills theory. Such a hidden sector contains several metastable hidden glueballs. In this work we shall extend earlier results on hidden valleys to include couplings of the messengers to the standard model Higgs sector. The effective interactions at one-loop couple the hidden gluons to the standard model particles through the Higgs sector. These couplings in turn induce hidden glueball decays to fermion pairs, or cascade decays with multiple Higgs emission. The presence of effective operators of different mass dimensions, often competing with each other, together with a great diversity of states, leads to a great variability in the lifetimes and decay modes of the hidden glueballs. We find that most of the operators considered in this paper are not heavily constrained by precision electroweak physics, therefore leaving plenty of room in the parameter space to be explored by the future experiments at the LHC.

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Section: Introductionmentioning

confidence: 99%

Pure-glue hidden valleys through the Higgs portal

Juknevich¹

2010

J. High Energ. Phys.

100

152

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“…The large N data are from [4,5]. There are also many more data available for SU(3) and SU (8). The large N extrapolation is done by multiplying these data by √ N 2 − 1/N, as we did in 2 + 1.…”

Section: −8πmentioning

confidence: 99%

“…But before we do that we would like to make a few general comments on the qualitative properties of glueball mass spectrum in both 2 + 1 and 3 + 1 dimensions. It has been known for a while [14,8] that the low mass glueball spectrum can be qualitatively understood in terms of local gluon interpolating operators of minimal dimension: higher dimensional operators create higher mass states. In particular, in 2 + 1 dimensions there is a (mass) dimension-6 operator tr(B 3 ) with 0 −− quantum numbers and this is consistent with the lattice result concerning the existence of a light (with m 0 −− ≈ 1.5m 0 ++ ) 0 −− glueball state in the spectrum of pure Yang-Mills theory in 2 + 1 dimensions.…”

Section: Comments: Lattice Vs Theorymentioning

confidence: 99%

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On the spectrum of pure Yang-Mills theory

Sharpe¹,

Greenspoon²

2008

Advances in String Theory

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In this note we discuss the wave functional approach to the spectrum of pure YangMills theory in 2 + 1 and 3 + 1 dimensions by highlighting the issues of dynamical mass generation and the role played by the kinetic term. We extrapolate our recent analysis of 2 + 1 Yang-Mills theory to 3 + 1 dimensions, and under certain heuristic assumptions use a simple quasi-Gaussian vacuum wavefunctional for 3+1 Yang-Mills theory for a preliminary study of the spectrum of glueballs which nicely fits the available lattice simulations. *

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“…The success of this approach has triggered new efforts to measure hybrid potentials in an anisotropic gluon background and a comparative NRQCD analysis has demonstrated the validity of this adiabatic approximation for bbg hybrids. These attempts were reviewed in [9].…”

Section: Introductionmentioning

confidence: 99%

Exotic quarkonia from anisotropic lattices

Khan¹,

Aoki²,

Burkhalter³

et al. 2000

Nuclear Physics B - Proceedings Supplements

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We study in detail the spectrum of heavy quarkonia with different orbital angular momentum along with their radial and gluonic excitations. Using an anisotropic formulation of Lattice QCD we achieved an unprecedented control over statistical errors and were able to study systematic errors such as lattice spacing artefacts, finite volume effects and relativistic corrections. First results on the spin structure in heavy hybrids are also presented.

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Exotica and the confining flux

Cited by 29 publications

References 39 publications

Pure-glue hidden valleys through the Higgs portal

Pure-glue hidden valleys through the Higgs portal

On the spectrum of pure Yang-Mills theory

Exotic quarkonia from anisotropic lattices

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