Servant Leadership Theory

Dennis, Robert S.; Kinzler-Norheim, Linda; Bocârnea, Mihai C.

doi:10.1057/9780230299184_14

Cited by 32 publications

(23 citation statements)

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“…In the latter case, one of the custodial partners of the t R , denotedb R can be fairly light, and Ref. [118] considers its LHC signatures by looking at 4-W events. With 10 fb −1 , they show that the peak in the di-jet mass distribution stands out above the background.…”

Section: Kk Fermionsmentioning

confidence: 99%

Warped five-dimensional models: phenomenological status and experimental prospects

et al. 2010

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Warped 5-dimensional models, based on the original Randall-Sundrum geometry, have been extended beyond their initial purpose of resolving the gauge hierarchy problem. Over the past decade, various ingredients have been added to their basic structure in order to provide natural and predictive models of flavor and also to address existing constraints from precision data. In this review, we examine the theoretical and experimental status of realistic models that accommodate current data, while addressing the hierarchy and flavor puzzles of the Standard Model. We also discuss the prospects for future discovery of the TeV-scale Kaluza-Klein states that are predicted to emerge in these models, and outline some of the challenges that the detection of such particles pose for experiments at the Large Hadron Collider.The solutions are written in terms of Bessel functions of the first and second kind, J α (x) and Y α (x), for which we shall use the shorthand notationand similarly for Y 0,1,z α . Then‡ Another commonly used form for the AdS metric is ds 2 = e −2ky η µν dx µ dx ν − dy 2 , where k = 1/L 0 is the AdS curvature. The formulas in conformal coordinates can be transcribed into the "proper distance" coordinates by setting z/L 0 = e ky , ∂ y = a(z) −1 ∂ z and dy = a(z)dz.§ Other gauge choices can also be useful [18]. A gauge independent expansion can be obtained by choosing the KK modes of A 5 equal to ∂ z f n /m n .

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Section: Kk Fermionsmentioning

confidence: 99%

Warped five-dimensional models: phenomenological status and experimental prospects

et al. 2010

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“…The custodians in some models can have masses not much larger than 500 GeV. In particular, these custodians can be produced at the LHC with spectacular signatures, such as multi-W events [9]. Finding custodians at the LHC using same-sign dileptons final states coming from multi-W events was recently studied in [10].…”

Section: Introductionmentioning

confidence: 99%

Study of the discovery potential of light custodians in a clean decay channel at the LHC

Sandes

Rosenfeld

2009

J. Phys. G: Nucl. Part. Phys.

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Models of warped extra dimensions with custodial symmetry usually predict the existence of a light Kaluza-Klein fermion arising as a partner of the right-handed top quark, sometimes called light custodians which we will denotebR. The production of these particles at the LHC can give rise to multi-W events which could be observed in same-sign dilepton channels, but its mass reconstruction is challenging. In this letter we study the possibility of finding a signal for the pair production of this new particle at the LHC focusing on a rarer, but cleaner decay mode of a light custodian into a Z boson and a b-quark. In this mode it would be possible to reconstruct the light custodian mass. In addition to the dominant standard model QCD production processes, we include the contribution of a Kaluza-Klein gluon first mode. We find that thebR stands out from the background as a peak in the bZ invariant mass. However, when taking into account only the electronic and muonic decay modes of the Z boson and b−tagging efficiencies, the LHC will have access only to the very light range of masses, mb = O(500) GeV.

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“…This procedure has been tested on W + jet simulation to ensure that it does not sculpt the combinatorial background distribution. Detailed results of the W reconstructions and consequences forq identification are presented in [434]. The peak obtained in the dijet mass distribution suggests that it is possible to reach a signal significance beyond the 5σ level.…”

Section: The Impact On the Higgs Searchesmentioning

confidence: 99%

“…The goal in this analysis is to investigate the feasibility of multi-W reconstruction and therefore identifyq at the LHC. A simulation of this signal and its main background has been performed, and an analysis strategy outlined which distinguishes the signal from the sizable SM backgrounds [434]. There can be severalq-type KK quarks in the class of composite Higgs models under consideration, leading to the same signature.…”

Section: The Impact On the Higgs Searchesmentioning

confidence: 99%

“…For the present model analysis, the mass ofq is taken as mq = 500 GeV. The Lagrangian of the model [434] has been implemented into CalcHep 2.4.3 [435] for the simulation ofq pair production and decay through the tW channel. The actual number of 4W events coming from the pair production and decay of the other Q = −5/3 KK quarks, in a typical model, is taken into account by a multiplying factor.…”

Section: The Impact On the Higgs Searchesmentioning

confidence: 99%

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Collider aspects of flavor physics at high Q

Lari¹,

Pape²,

Porod³

et al. 2009

Flavor in the Era of the LHC

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This chapter of the "Flavor in the era of LHC" workshop report discusses flavor-related issues in the production and decays of heavy states at the LHC at high momentum transfer Q, both from the experimental and the theoretical perspective. We review top quark physics, and discuss the flavor aspects of several extensions of the standard model, such as supersymmetry, little Higgs models or models with extra dimensions. This includes discovery aspects, as well as the measurement of several properties of these heavy states. We also present publicly available computational tools related to this topic.

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Servant Leadership Theory

Cited by 32 publications

References 0 publications

Warped five-dimensional models: phenomenological status and experimental prospects

Warped five-dimensional models: phenomenological status and experimental prospects

Study of the discovery potential of light custodians in a clean decay channel at the LHC

Collider aspects of flavor physics at high Q

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