CP3-Origins/DESY/Göttingen Autumn School on Particle Physics and Cosmology

11 Oct 2011, 14:00 → 15 Oct 2011, 13:00 Europe/Berlin

Seminar Room 2, Building 2a (DESY)

Francesco Sannino (CP3-Origins - SDU), Georg Weiglein (DESY), Laura Covi (DESY)

Overview

This Autumn School is dedicated to first/second year Ph.D. students in theoretical Particle Physics and Cosmology.

Invited speakers and topics

J. R. Andersen "QCD Phenomenology/MC"

J. Haller "LHC first results"

A. Hebecker "String Phenomenology"

S. Heinemeyer "Higgs and BSM Phenomenology"

W. Porod "Neutrino and Flavour Physics"

F. Sannino "Technicolor and strongly coupled theories"

C. Scrucca "SUSY and SUGRA"

A. Weiler "Beyond the SM Models"

A. Westphal "Inflation"

P. Ullio "Dark Matter"

There will be a short talk session giving participants the opportunity to present their research projects. If you are interested to speak, please submit an abstract following the link on the left.

Tuesday, 11 October

14:30 → 17:10 Afternoon Lectures

14:30 Technicolor and strongly coupled theories

Speaker: Prof. Francesco Sannino

15:40 Inflation

Speaker: Dr Alexander Westphal (DESY)

Slides CP3_origins_autumn_school_-_Inflation_1.pdf

16:50 Coffee Break

Wednesday, 12 October

09:00 → 13:00 Morning Lectures

09:00 Technicolor and strongly coupled theories

Speaker: Prof. Francesco Sannino

10:10 Inflation

Speaker: Dr Alexander Westphal (DESY)

Slides CP3_origins_autumn_school_-_Inflation_2.pdf

11:20 Coffee Break

11:50 LHC first results

Speaker: Johannes Haller (University Hamburg)

14:30 → 17:10 Afternoon Lectures

14:30 SUSY and SUGRA

Speaker: Claudio Scrucca

Slides Scrucca.pdf

15:40 Neutrino and Flavour Physics

Speaker: Joern Kersten (Universität Hamburg)

Slides Vortrag.pdf

16:50 Coffee Break

17:10 → 18:20 Student's Session

17:10 A sufficient condition for de Sitter vacua in type IIB string theory

We derive a sufficient condition for realizing meta-stable de Sitter vacua with small positive cosmological constant within type IIB string theory flux compactifications with spontaneously broken supersymmetry. There are a number of `lamp post' constructions of de Sitter vacua in type IIB string theory and supergravity. We show that one of them -- the method of `K\"ahler uplifting' by F-terms from an interplay between non-perturbative effects and the leading $\alpha'$-correction -- allows for a more general parametric understanding of the existence of de Sitter vacua. The result is a condition on the values of the flux induced superpotential and the topological data of the Calabi-Yau compactification, which guarantees the existence of a meta-stable de Sitter vacuum if met. Our analysis explicitly includes the stabilization of all moduli, i.e. the K\"ahler, dilaton and complex structure moduli, by the interplay of the leading perturbative and non-perturbative effects at parametrically large volume.

Speaker: Mr Markus Rummel (University of Hamburg)

Slides deSitterIIB_MarkusRummel_FINAL.pdf

17:30 A Dark Matter Candidate from Inert Doublet Models

In spite of the fact that the existence of dark matter in the Universe is established, its nature remains unknown. Our aim is to provide a model which offers a candidate for dark matter and simultaneously tries to address some potential problems like CP-violation. The model is an extension of 2HDM with an additional inert doublet along with an unbroken symmetry. The unbroken Z2 symmetry ensures that the lightest particle of this new doublet is absolutely stable and that, it only couples very weakly to ordinary matter indirectly via the heavy gauge bosons. This very weak coupling is necessary in order not to be in conflict with laboratory data. We present that in a significant part of the parameter space the inert charged scalar could be long-lived, leaving displaced vertex in the detector. It enables one to discover the inert charged Higgs over the Standard Model background at the LHC.

Speaker: Mr Mahdi Poormohammadi (University of Bergen)

17:50 Matter and Dark Matter from heavy Majorana Neutrino Decay

The decays of heavy Majorana neutrinos and their superpartners shortly after inflation simultaneously give rise to three crucial ingredients for the hot early universe: (1) the entropy inherent to the thermal radiation that dominates the overall energy density, (2) the matter-antimatter asymmetry and (3) dark matter. For characteristic neutrino parameters baryogenesis can be accomplished by means of nonthermal leptogenesis. At the same time the reheating temperature is controlled by the neutrino lifetime in such a way that thermal production of the gravitino, which we assume to be the lightest superparticle, automatically yields the observed amount of dark matter. This connection between the neutrino sector and supergravity results in constraints on superparticle masses in terms of neutrino masses and vice versa. In order to generate a sufficient neutrino abundance after inflation we consider, as an exampple, neutrino production in the course of tachyonic preheating associated with spontaneous B - L breaking. Our scenario is sensitive to the light neutrino masses and the supergravity mass spectrum and can hence be tested by colliders and in cosmological observations.

Speaker: Ms Valerie Domcke (DESY)

Thursday, 13 October

09:00 → 13:10 Morning Lectures

09:00 SUSY and SUGRA

Speaker: Claudio Scrucca

Slides Scrucca.pdf

10:10 Neutrino and Flavour Physics

Speaker: Joern Kersten (Universität Hamburg)

11:20 Coffee Break

12:00 QCD Phenomenology/MC

Speaker: Dr Jeppe Andersen

14:30 → 17:10 Afternoon Lectures

14:30 Beyond the SM Models

Speaker: Andreas Weiler (DESY-T)

Slides Desy_lecture_bsm_web.pdf

15:40 Higgs and BSM Phenomenology

Speaker: Sven Heinemeyer (IFCA (CSIC, Santander))

Slides sven.pdf

16:50 Coffee Break

19:30 → 22:00 Dinner

19:30 How to go there

Speaker: Prof. Laura Covi (Institute for Theoretical Physics - Goettingen University)

Slides DinnerCDG11.pdf

Friday, 14 October

09:00 → 13:00 Morning Lectures

09:00 Higgs and BSM Phenomenology

Speaker: Sven Heinemeyer (IFCA (CSIC, Santander))

Slides sven.pdf

10:10 QCD Phenomenology/MC

Speaker: Dr Jeppe Andersen

11:20 Coffee Break

11:50 Beyond the SM Models

Speaker: Andreas Weiler (DESY-T)

Slides Desy_lecture_bsm_web_2.pdf

14:30 → 17:10 Afternoon Lectures

14:30 String Phenomenology

Speaker: Prof. Arthur Hebecker

Slides desy11.pdf

15:40 Dark Matter

Speaker: Prof. Piero Ullio

Slides ullio-lectures1+2-r.pdf

16:50 Coffee Break

Saturday, 15 October

09:00 → 13:00 Morning Lectures

09:00 String Phenomenology

Speaker: Prof. Arthur Hebecker

Slides desy11.pdf

10:10 Dark Matter

Speaker: Prof. Piero Ullio

Slides ullio-lectures1+2-r.pdf

11:20 Coffee Break

11:50 DESY Visit