21-26 July 2014
Renold Building
Europe/London timezone
Alternative Theories
Place
Location: Renold Building
Date:
from 21 Jul 14:30 to 25 Jul 18:00
Conveners
-
21 Jul 14:30 - 15:50
- Dr. de Capua, Stefano (University Of Manchester)
-
21 Jul 16:30 - 18:00
- Dr. Gillioz, Marc (CP3-Origins, University of Southern Denmark)
-
22 Jul 14:30 - 15:50
- Dr. Schwanenberger, Christian (University of Manchester)
-
22 Jul 16:30 - 18:00
- Prof. Hosotani, Yutaka (Osaka University)
-
24 Jul 14:30 - 15:50
- Dr. Mitsou, Vasiliki (IFIC Valencia)
-
25 Jul 14:30 - 15:50
- Prof. Mavromatos, Nikolaos (King's College London)
-
25 Jul 16:30 - 18:00
- Prof. Mavromatos, Nikolaos (King's College London)
Timetable | Contribution List
Displaying 24
contributions
out of
24
We investigate a possibility of constructing 6-dimensional gauge-Higgs unification models compactified on T^2/Z_N that have a custodial symmetry. We consider all simple groups whose ranks are two and three as a 6D gauge group, and find appropriate orbifold boundary conditions that realize a realistic field content in 4D effective theory for each gauge group. We also calculate the Higgs potential a
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Presented by Dr. Yutaka SAKAMURA
on
25/07/2014
at
15:30
Galaxy clusters can efficiently convert axion-like particles (ALPs) to photons. We propose that the recently claimed detection of a 3.55--3.57 keV line in the stacked spectra of a large number of galaxy clusters and the Andromeda galaxy may originate from the decay of either a scalar or fermionic 7.1 keV dark matter species into an axion-like particle (ALP) of mass ma≲6⋅10−11 eV, which subse
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Presented by Mr. Markus RUMMEL
on
25/07/2014
at
15:50
I will show that lepton compositeness can have a non-negligible impact on the Higgs potential in Minimal Composite Higgs Models. This offers a possibility to raise the scale of the top partners above a TeV, thus reducing the tension with the current negative search results at the LHC for minimal setups of the quark sector.
Presented by Dr. Adrian CARMONA
on
25/07/2014
at
13:50
We present a non-supersymmetric theory with non-vanishing 4D curvature with a naturally light dilaton. It is based on 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 in the IR, and there is no large contribution to the
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Presented by Dr. Javi SERRA
on
22/07/2014
at
15:30
I present a progress report on the direct search for dark matter axions with ADMX upgraded with low noise RF SQUID amplifiers and cryogenics. Axions are a well motivated candidate to explain the discrepancy between the observed baryonic matter density and that inferred from precision measurements of the microwave background anisotropy, gravitational lensing, and the dynamics of spiral galaxies. As
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Presented by Dr. Ed DAW
on
25/07/2014
at
14:30
The results of ATLAS and CMS beyond the Standard Model searches are very useful to constrain various new physics modes, yet they are originally designed to search for a particular model. Recasting existing analyses on to an arbitrary model involves various subtleties and one has to simulate detector responses and selection cuts as realistic as possible. For this task, we developed two programs:
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Presented by Dr. Kazuki SAKURAI
on
21/07/2014
at
14:50
If new physics has to be discovered in the forthcoming years, the ultimate goal of the high-energy physics program will consist of fully characterizing the newly-discovered degrees of freedom in terms of properties such as their masses, spins and couplings. I will show how the availability of polarized beams at high-energy proton-proton colliders could yield a unique discriminating power between d
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Presented by Josselin PROUDOM
on
21/07/2014
at
17:10
A new relevant class of perturbative models involving elementary scalars is proposed in which the theory simultaneously satisfies the Veltman conditions and is conformal at the classical level. These are so-called perturbative natural conformal (PNC) theories. I will show that PNC models are very constrained and thus highly predictive. Among several PNC examples, we have discovered a remarkably s
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Presented by Mr. Matin MOJAZA
on
21/07/2014
at
16:30
The Large Hadron Collider experiments are testing the evolution of the strong coupling αs up to the TeV scale. We show that the ratio of 3- to 2-jets cross sections provides a good determination of αs, even in the presence of new physics. The experimental measurements can then be used to place a model-independent bound on new particles carrying QCD colour charge and can constrain such states to
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Presented by Dr. Diego BECCIOLINI
on
25/07/2014
at
16:10
I will present a gauge mediation principle for BSM theories where exact UV scale invariance is broken in a hidden sector: the relevant configurations are those in which the Standard Model and a hidden sector emanate from a scale invariant pair of UV theories that communicate only via gauge interactions. I will show that in such configurations, once scale invariance is broken in the hidden sector,
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Presented by Dr. Alberto MARIOTTI
on
22/07/2014
at
13:50
Axionlike particles (ALPs) are weakly interacting light pseudoscalars, much studied due to their potential relevance to the fields of particle physics, astrophysics and cosmology: axions are a specific example, involved in the solution of certain specific problems in QCD.
It is noteworthy that ALPs are also viable dark matter candidates, which is one of the main physical motivations for their th
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Presented by Prof. ALYSSON FABIO FERRARI
on
21/07/2014
at
15:10
Asymmetric dark matter models are useful in providing an explanation for the number density of dark matter in the universe but typically do not provide an explanation for the mass of dark matter particles.
In this talk I discuss the capacity for unified models to solve this problem by linking the confinement scales of baryons in visible and dark sectors to each other through the condition of unif
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Presented by Mr. Stephen LONSDALE
on
25/07/2014
at
14:10
Signatures of the SO(5) x U(1) gauge-Higgs unification at 14 TeV LHC are presented.
The Kaluza-Klein (KK) mass spectra of $¥gamma, Z, Z_R$ and the Higgs self-couplings
obey universality relations with the Aharonov-Bohm (AB) phase $¥theta_H$ in the fifth dimension. The current data at low energies and at LHC indicate $¥theta_H <0.2$.
Three neutral gauge bosons, the first KK modes $Z
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Presented by Prof. Yutaka HOSOTANI
on
24/07/2014
at
13:50
We consider explicit unified models based on the flipped SU(5)X U(1) and SU(6)X SU(2) gauge groups in which gauge mediated proton decay operators are suppressed at leading order due to the special placement of matter fields in unified multiplets. We discuss both the theoretical structure and phenomenological implications of these models. For the latter, we examine the viability of the physical spe
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Presented by Dr. Michael PARASKEVAS
on
24/07/2014
at
14:10
In this talk, I will introduce the concept of renormalization group flow and describe the general features that can be found in such flows in (gauge-)Yukawa theories. In perturbation theory, the renormalization group flow is given by the beta functions of the various couplings, and these can be calculated to different loop orders. It will become apparent that it is necessary to have a criterion th
... More
Presented by Mr. Esben MøLGAARD
on
22/07/2014
at
16:10
We study a possibility to search for extra dimensions via forward detectors at the LHC.
We investigate photon-induced ADD/RS graviton exchange reactions,
where the photons emitted from protons and quasi-real.
Presented by Ms. Kimiko YAMASHITA
on
21/07/2014
at
16:50
In many models of physics beyond the Standard Model the coupling of new
physics to third generation quarks is enhanced and signatures are
expected that mimic top production. We present a review of non-MSSM
based searches for new physics beyond the standard model in final states
containing top quarks and/or bottom quarks. This includes includes
searches for heavy gauge bosons, excited quarks,
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Presented by Rebekka HOEING
on
22/07/2014
at
13:30
Due to its heavy mass, top quarks are often expected among the decay products of heavy BSM particles. The unique decay pattern of the top quarks also make them great probe for new physics. In this talk, I present the latest results from the ATLAS collaboration, on a wide range of searches in the final states with top quarks. These include searches for top pair resonance, top-bottom resonance, as w
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Presented by Dr. Jiahang ZHONG
on
25/07/2014
at
13:30
Its forward acceptance and good resolution allow LHCb to perform competitive
searches for heavy particles beyond the Standard Model. We report about
searches for long lived particles with the LHCb detector and give our
prospects for future measurements.
Presented by Dr. Stefano DE CAPUA
on
22/07/2014
at
17:30
Exotic searches for non-SUSY physics beyond Standard Model using the 8 TeV data collected at the LHC is presented. The CMS collaboration has investigated various scenarios, including the possibility of new heavy gauge bosons and resonances, extra-dimensions, and excited quarks. No evidence for these signatures has been found therefore limits on various model parameters are extended.
Presented by Ms. Zeynep DEMIRAGLI
on
24/07/2014
at
13:30
A summary is given of non-SUSY searches for physics beyond the Standard Model with the ATLAS detector. Searches using leptons, photons, missing transverse energy, and jets are presented, as well as searches for resonances and for objects requiring custom reconstruction. No significant evidence of new physics is found in the data collected at center-of-mass energies of 7 TeV and 8 TeV. Limits
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Presented by Dr. Christopher MARINO
on
21/07/2014
at
14:30
We present some four-dimensional purely fermionic gauge theories that give a UV completion of composite Higgs models. We start at the group theoretical level, addressing the necessary (but not sufficient) conditions for the viability of these models, such as the existence of top partners and custodial symmetry. We then study the dynamics of some of the most promising models in more detail. Part of
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Presented by Gabriele FERRETTI
on
22/07/2014
at
14:10
The conformal symmetry plays an important role in quantum field theories, even when it is explicitly broken by a renormalization group flow. The Weyl consistency conditions reflect its presence in the renormalized theory. They provide relations among the beta functions of the theory at different loop orders. As an example, we show how the Weyl consistency conditions affect the computation of the v
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Presented by Dr. Marc GILLIOZ
on
22/07/2014
at
15:50
We searched for time-dependent solutions for the 5-dimensional system of a scalar field canonically coupled to gravity. For the case of time-independent scalar field, the time evolution of the scale factor is obtained for different values of the spatial curvature k=0,+1,-1. In the case of time-dependent scalar field, two classes of solutions are discussed and an extension of the superpotential for
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Presented by Aqeel AHMED
on
24/07/2014
at
14:30