University of Cambridge > Talks.cam > HEP phenomenology joint Cavendish-DAMTP seminar >  A naturally light dilaton and a small cosmological constant

  Browse A-Z

Log in

Cambridge users (raven)details Other usersdetails No account?details

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

A naturally light dilaton and a small cosmological constant

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Damien George.

I present a 5D holographic description of a conformal theory perturbed by a close-to-marginal operator of dimension 4-epsilon, which develops a condensate. As long as the dimension of the perturbing operator remains very close to marginal (even for large couplings) a stable minimum at hierarchically small scales is achieved, and the dilaton mass squared is suppressed by epsilon compared to the other KK modes. At the same time the dynamical contribution to the cosmological constant from the condensate is also suppressed by epsilon, and thus parametrically smaller than in a broken SUSY theory. As a byproduct I also present an exact solution to the scalar-gravity system that can be interpreted as a new holographic realization of spontaneously broken conformal symmetry. Even though this metric deviates substantially from AdS space in the deep IR it still describes a non-linearly realized exactly conformal theory.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

IfM Research Capability Development Programme Seminar Series Reproduction on Film: Outlaws God or multiverse? Cambridge University Astronomical Society (CUAS) International Cafe Scientifique Cambridge Area Sequencing Informatics Meeting VI (2014)

Other talks

Coin Betting for Backprop without Learning Rates and More Beyond crazy: Rationality, irrationality, and conspiracy theory Chains and Invisible Threads: Marx on Republican Liberty and Domination CANCELLED DUE TO STRIKE ACTION Concentrated, “pulsed” axial glacier flow: structural glaciological evidence from Kvíárjökull in SE Iceland Advanced NMR applications Prof Kate Jones (UCL): Biodiversity & Conservation Statistical Methods in Pre- and Clinical Drug Development: Tumour Growth-Inhibition Model Example Immigration and Freedom Black and British Migration The Anne McLaren Lecture: CRISPR-Cas Gene Editing: Biology, Technology and Ethics Cambridge Rare Disease Summit 2017 Mechanical properties of cells or cell components on the micro- and nanometer scale
 

© 2006-2024 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity