RAPPORT SUR LES CONTRIBUTIONS - CODYCE - LIO INTERNATIONAL WORKSHOP ON FUNDAMENTAL THEORIES FOR BSM AND COSMOLOGY
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CoDyCE - LIO international
workshop on Fundamental
Theories for BSM and
cosmology
Rapport sur les
contributions
https://indico.in2p3.fr/e/fundamental2018CoDyCE - LIO in … / Rapport sur les contributions Registration
ID de Contribution: 1 Type: Non spécifié
Registration
September 30, 2023 Page 1CoDyCE - LIO in … / Rapport sur les contributions Fundamental Interactions, The Ne …
ID de Contribution: 2 Type: Non spécifié
Fundamental Interactions, The Next Revolutions
mardi 28 août 2018 10:00 (45 minutes)
Orateur: SANNINO, Francesco
September 30, 2023 Page 2CoDyCE - LIO in … / Rapport sur les contributions Effective actions and the Conform …
ID de Contribution: 3 Type: Non spécifié
Effective actions and the Conformal Scale for physics
BSM
mardi 28 août 2018 14:30 (45 minutes)
Orateur: CORIANO, Claudio
September 30, 2023 Page 3CoDyCE - LIO in … / Rapport sur les contributions Confronting (composite) DM mod …
ID de Contribution: 4 Type: Non spécifié
Confronting (composite) DM models and MOND
with rotation curves and astrophysical observations
mardi 28 août 2018 15:30 (45 minutes)
Orateur: FRANDSEN, Mads
September 30, 2023 Page 4CoDyCE - LIO in … / Rapport sur les contributions Central charges and their constraints
ID de Contribution: 5 Type: Non spécifié
Central charges and their constraints
mercredi 29 août 2018 10:00 (45 minutes)
I will introduce the idea of central charges and how they can imply constraints on UV/IR asymp-
totics of RG flows akin to ‘t Hooft anomalies. I will review some results on their monotonicity
properties and the so-called a-theorem stating that the central charge ‘a’ decreases along the RG
flow. I will then show how can central charges be computed in realistic theories and present
examples. These examples will include both asymptotically safe and asymptotically free theories.
Finally I will discuss the relation between central charges and certain convergent sum rules, which
can provide a way of putting the a-theorem on lattice.
Orateur: PROCHAZKA, Vladimir
September 30, 2023 Page 5CoDyCE - LIO in … / Rapport sur les contributions RG functions in semi-simple gauge …
ID de Contribution: 6 Type: Non spécifié
RG functions in semi-simple gauge theories at large
Nf
mercredi 29 août 2018 11:00 (30 minutes)
Orateur: DONDI, Nicola
September 30, 2023 Page 6CoDyCE - LIO in … / Rapport sur les contributions Forging a link between quantum g …
ID de Contribution: 7 Type: Non spécifié
Forging a link between quantum gravity and
(beyond) Standard Model physics
mercredi 29 août 2018 14:30 (30 minutes)
Renormalization Group flows provide a link between Planck- and electroweak-scale physics, that
could allow to test implications of quantum gravity at accessible energy scales [1]. Systematic trun-
cations suggest the existence of a regime of asymptotically safe quantum gravity, in which gravity
fluctuations induce a UV-completion of the matter sector. Within this scenario, the paradigm of
asymptotic safety surpasses the predictive power of the Standard Model. It could retrodict the
top mass, the bottom mass and the Abelian gauge coupling from first principles in a microscopic
model including quantum gravity [2,3]. In our approximation, quantitative agreement with obser-
vations is only possible if the electric charge ratio of bottom and top lies in close vicinity to the
Standard-Model value of Qb/Qt=-1/2. More generally, the asymptotic safety paradigm could give
guidance for model building beyond the Standard Model. For instance, it places novel constraints
on grand unification [4] and dark matter searches [5]. References: [1] A. Eichhorn and A. Held,
Phys. Rev. D 96, no. 8, 086025 (2017). [2] A. Eichhorn and A. Held, Phys. Lett. B 777, 217 (2018).
[3] A. Eichhorn and A. Held, arXiv:1803.04027 (2018). [4] A. Eichhorn, A. Held and C. Wetterich,
arXiv:1711.02949 (2017). [5] A. Eichhorn, A. Held and P. Vander Griend, arXiv:1802.08589 (2018)
Orateur: HELD, Aaron
September 30, 2023 Page 7CoDyCE - LIO in … / Rapport sur les contributions The flavor puzzle and the …
ID de Contribution: 8 Type: Non spécifié
The flavor puzzle and the Goldstone-Higgs
mercredi 29 août 2018 15:15 (30 minutes)
We propose a unified model of scalar particles that addresses the flavour hierarchies, solves the
strong CP problem, delivers a dark matter candidate,
and provides the trigger for electroweak symmetry breaking. Besides furnishing a unification of
the recently proposed axiflavon with a Goldstone-Higgs sector, the scenario can also be seen as
adding a model of flavour (and strong CP conservation along with axion dark matter) to elementary
Goldstone-Higgs setups.
Orateur: BLASI, Simone
September 30, 2023 Page 8CoDyCE - LIO in … / Rapport sur les contributions Dark Bound States of Vector-like f …
ID de Contribution: 9 Type: Non spécifié
Dark Bound States of Vector-like fermions
jeudi 30 août 2018 10:00 (30 minutes)
I will discuss the possibility that dark matter in the universe is composed of bound states of
fermions with vector-like masses. Those particles are well motivated theoretically in allow in
particular to realise asymptotically safe extensions of the Standard Model. I will show that those
fermions can form bound states due to a new gauge group, which confines above the tempera-
ture of the QCD phase transition or in the most economical set-up the confinement can be due to
Standard model strong interactions. Thus leading to weakly intreating massive particles made of
strongly interacting components.
Summary
Orateur: SMIRNOV, Juri
September 30, 2023 Page 9CoDyCE - LIO in … / Rapport sur les contributions Probing Baryogenesis through the …
ID de Contribution: 10 Type: Non spécifié
Probing Baryogenesis through the Higgs
Self-Coupling
jeudi 30 août 2018 10:45 (30 minutes)
The link between a modified Higgs self-coupling and the strong first-order phase transition nec-
essary for baryogenesis is well explored for polynomial extensions of the Higgs potential. We
broaden this argument beyond leading polynomial expansions of the Higgs potential to higher-
order polynomial terms and to non-polynomial Higgs potentials with the use of the functional
renormalization group. In all cases we find that a strong first-order phase transition manifests
itself in an enhancement of the Higgs self-coupling by at least 50%, implying that such modified
Higgs potentials should be accessible at the LHC. The modifications of the Higgs potential can be
linked to e.g. asymptotically safe extensions of the Standard Model.
Orateur: REICHERT, Manuel
September 30, 2023 Page 10CoDyCE - LIO in … / Rapport sur les contributions Duality along the RG flow
ID de Contribution: 11 Type: Non spécifié
Duality along the RG flow
mardi 28 août 2018 11:10 (45 minutes)
I will show an example of exact duality along the RG flow between the electric and magnetic
versions of SQCD in D=4. In the vicinity of Nf=3Nc/2 the non-perturbative electric flow can be
calculated in terms of the perturbative electric one.
Orateur: BAJC, Borut
September 30, 2023 Page 11CoDyCE - LIO in … / Rapport sur les contributions How to naturally break electrowea …
ID de Contribution: 12 Type: Non spécifié
How to naturally break electroweak symmetry
mardi 28 août 2018 12:05 (45 minutes)
Orateur: MA, Teng
September 30, 2023 Page 12CoDyCE - LIO in … / Rapport sur les contributions An almost elementary Higgs: theo …
ID de Contribution: 13 Type: Non spécifié
An almost elementary Higgs: theory and practice
jeudi 30 août 2018 14:30 (30 minutes)
Orateur: BARDUCCI, Daniele
September 30, 2023 Page 13CoDyCE - LIO in … / Rapport sur les contributions Flavor Physics and Flavor Anomal …
ID de Contribution: 14 Type: Non spécifié
Flavor Physics and Flavor Anomalies in Minimal
Fundamental Partial Compositeness
jeudi 30 août 2018 15:15 (30 minutes)
I would like to present the paper of the same name, written in collaboration with F. Sannino,
P. Stangl, and D. Straub. I will breifly review the Fundamental Partial Compositeness framework
which is a realistic model for composite dynamics. I then present our analysis of the falvor physics
in the minimal model. In particular the analysis finds parameter points that pass the current
precision tests. At the same time the new physics contribution to the flavor physics is found to be
testable at both current and future experiments. I will pay particular attention the hints of lepton
flavor violation in the R_{K^{(\ast)}} and R_{D^{(\ast)}} observables.
Orateur: THOMSEN, Anders
September 30, 2023 Page 14CoDyCE - LIO in … / Rapport sur les contributions Large mass hierarchies in strongly …
ID de Contribution: 15 Type: Non spécifié
Large mass hierarchies in strongly coupled theories
with multi-scale dynamics
vendredi 31 août 2018 10:00 (30 minutes)
Strongly coupled theories exhibiting walking dynamics provide a scenario for beyond the Standard
Model physics, in which electro-weak symmetry is broken dynamically and the large hierarchy
between the electro-weak and Planck energy scales is naturally generated. Due to the spontaneous
breaking of approximate scale invariance, a light dilaton can be expected to be present in the spec-
trum. In this talk, we present an example of a strongly coupled theory with multi-scale dynamics,
in which there is a light composite scalar state. Using gauge-gravity duality, we compute the spec-
trum of scalar and tensor glueballs by studying an 8-scalar sigma-model in five dimensions, the
solutions of which include the one-parameter family of backgrounds dual to the baryonic branch
of the Klebanov-Strassler field theory. We argue that far out on the moduli space, the ratio of
explicit to spontaneous breaking of scale invariance can be made small, leading one of the scalar
states, the pseudo-dilaton, to become parametrically light.
Orateur: ELANDER, Daniel
September 30, 2023 Page 15CoDyCE - LIO in … / Rapport sur les contributions Unearthing the electroweak struct …
ID de Contribution: 16 Type: Non spécifié
Unearthing the electroweak structure of warped
extra-dimensions at colliders
vendredi 31 août 2018 10:45 (30 minutes)
Orateur: IYER, Abhishek
September 30, 2023 Page 16CoDyCE - LIO in … / Rapport sur les contributions Probing the nature of Dark Matter …
ID de Contribution: 17 Type: Non spécifié
Probing the nature of Dark Matter at the ILC
vendredi 31 août 2018 11:50 (30 minutes)
We analyse the potential of the proposed international linear collider to detect Dark Matter (DM)
and determine its properties. In many models stability of Dark Matter particles D is ensured by
conservation of a new quantum number referred to as D-parity. Our models also contain charged
D-odd particles D± with the same spin as D. In this work, we study two minimal consistent models
corresponding to scalar and fermionic DM. The first of which is the inert higgs doublet model
(I2HDM), which is a Z2 symmetric Two Higgs Doublet Model, with the lightest neutral scalar being
identified as D. The latter contains an SU(2) doublet of vector-like Dirac fermions, and an additional
neutral singlet fermion. In this model, D is a mixture of neutral fermion singlet and doublet. For
minimal fermionic DM, we perform an analysis of constraints of the parameter space, coming from
DM relic density, DM direct detection, and collider. We propose a method to determine the mass
of DM and distinguish its spin, in the process e+ e− → D+ D− → DDW + W − toDD(q q̄)(ℓν)
with a signature dijet + µ (or e) + missing mass.
Orateur: LOCKE, Daniel
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