On the phase structure of vector-like gauge theories with massless fermions

Banks, Thomas; Zaks, A.

doi:10.1016/0550-3213(82)90035-9

Cited by 1,116 publications

(1,506 citation statements)

References 12 publications

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“…This leads as in [2] to a perturbatively accessible RG fixed point, with β(g * ) = 0 solved by g * small. A general expression for the RG fixed point coupling of SUSY gauge theories in this limit is [10] …”

Section: Acknowledgmentsmentioning

confidence: 99%

“…We can now study the O, D and E RG fixed points of (1.2) in a perturbative regime, along the lines of [1,2]. To do this, we take SU (N c ) with N c large and N f such that the theory is just barely asymptotically free.…”

Section: Acknowledgmentsmentioning

confidence: 99%

“…an interacting 4d CFT. Perturbative analysis suggested the possibility of the latter phase long ago, via the apparent weakly coupled RG fixed points in theories designed to be just barely asymptotically free [1,2]. There might have then been some lingering doubts about about whether or not interacting 4d CFTs really existed (theoretically) at the non-perturbative level.…”

Section: Introductionmentioning

confidence: 99%

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RG fixed points and flows in SQCD with adjoints

2004

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We map out and explore the zoo of possible 4d N = 1 superconformal theories which are obtained as RG fixed points of N = 1 SQCD with N f fundamental and N a adjoint matter representations. Using "a-maximization," we obtain exact operator dimensions at all RG fixed points and classify all relevant, Landau-Ginzburg type, adjoint superpotential deformations. Such deformations can be used to RG flow to new SCFTs, which are then similarly analyzed. Remarkably, the resulting 4d SCFT classification coincides with Arnold's ADE singularity classification. The exact superconformal R-charge and the central charge a are computed for all of these theories. RG flows between the different fixed points are analyzed, and all flows are verified to be compatible with the conjectured a-theorem.

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Section: Acknowledgmentsmentioning

confidence: 99%

Section: Acknowledgmentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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RG fixed points and flows in SQCD with adjoints

2004

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“…But there could be a hidden theory which is scale invariant, with a non-trivial infrared fixed point, whose fields are known as Banks-Zaks (BZ) fields [2]. It is further assumed that the scale invariant theory interacts very weakly with that of SM particles by the exchange of very massive particles with the generic form O SM O BZ /M k U .…”

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confidence: 99%

Probing the unparticle signal in b→d penguin processes

Mohanta

Giri

2008

Physics Letters B

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We investigate the effect of unparticles in the pure b → d penguin processes B 0 → K 0K 0 and B +,0 → φπ +,0 . Since these processes receive dominant contributions due to the top quark in the loop, direct and mixing-induced CP asymmetry parameters in these processes are expected to be vanishingly small in the standard model. We find that due to the unparticle effect sizable nonzero CP violation could be possible in these channels.

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“…In a recent paper, Georgi [1] has speculated on the existence of a high scale conformal sector [2] which may couple to the various gauge and matter fields of the Standard Model(SM).…”

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confidence: 99%

Contact interactions and resonance-like physics at present and future colliders from unparticles

Rizzo

2007

J. High Energy Phys.

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High scale conformal physics can lead to unusual unparticle stuff at our low energies. In this paper we discuss how the exchange of unparticles between Standard Model fields can lead to new contact interaction physics as well as a pseudoresonance-like structure, an unresonance, that might be observable at the Tevatron or LHC in the Drell-Yan channel. The specific signatures of this scenario are quite unique and can be used to easily identify this new physics given sufficient integrated luminosity.

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On the phase structure of vector-like gauge theories with massless fermions

Cited by 1,116 publications

References 12 publications

RG fixed points and flows in SQCD with adjoints

RG fixed points and flows in SQCD with adjoints

Probing the unparticle signal in b→d penguin processes

Contact interactions and resonance-like physics at present and future colliders from unparticles

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