**Higgs physics**

Alexander Azatov (*SISSA, Trieste*)

I will start by reviewing the basics of the Standard Model focusing on the Higgs field. Particular attention will be paid to the role of the Higg field in electroweak symmetry breaking. I will proceed further by discussing the measurements of the Higgs interactions at LHC and the possible implications for the physics Beyond Standard Model.

**References**

- M. E. Peskin and D. V. Schroeder, “An Introduction To Quantum Field Theory”
- H.Georgi, “Weak Interactions and Modern Particle Theory”
- S.Dawson TASI lectures, “Electroweak Symmetry Breaking and Effective Field Theory” 1712.07232

**The lecture notes **are sent by e-mail to all participants.

**Basics of Field Theory and Supersymmetry**

Borut Bajc (*Institute Jozef Stefan, Ljubljana*)

We will review some basic notions about perturbative field theory and gauge theories, which are needed for the description of the Standard Model. We will then try to motivate and introduce supersymmetry and describe some of its peculiar ingredients.

**References**

- L. H. Ryder, “Quantum Field Theory”
- M. E. Peskin and D. V. Schroeder, “An Introduction To Quantum Field Theory”
- S. Weinberg, The quantum theory of fields, Vol. 1,2,3
- S.P. Martin, “A Supersymmetry Primer”, hep-ph/9709356

**The lecture notes **are available on Borut Bajc’s homepage as *Short quantum field theory + susy*.

**Introduction to Cosmology in the Braneworld**

Neven Bilic (*Rudjer Boskovic Institute, Zagreb*)

After a preliminary review of standard cosmology, we will discuss cosmology on the braneworld universe. Braneworld cosmology is based on the scenario in which matter is confined on a brane in a higher-dimensional bulk with only gravity allowed to propagate in the bulk. The brane can be placed, e.g., at the boundary of a 5-dim asymptotically Anti-de Sitter space. We will demonstrate a deviation from the standard FRW cosmology and from the standard inflation.

**References**

- B. Ryden,
*Introduction to Cosmology*(2^{nd}ed.), Cambridge University Press, 2016 - J. Soda,
*AdS/CFT on the brane*, Lect. Notes Phys.**828,**235 (2011) arXiv:1001.1011 - N.Bilic,
*Randall-Sundrum versus holographic cosmology*, PRD**93**, 066010 (2016), arXiv:1511.07323 - N.Bilic, G.S. Djordjevic, D.D. Dimitrijevic et al.,
*Tachyon inflation in the holographic braneworld*, JCAP**08**(2019)034, arXiv:1809.0721

**Presentations**

**Introduction to holography**

Radoslav Rashkov, Kiril Hristov (*University of Sofia*)

(tutorials) Tsvetan Vetsov (*University of Sofia*)

The aim of this short course is to give a basic introduction to the AdS/CFT correspondence without involving any knowledge of string theory. We are going to start from the path integral approach to quantum field theory and introduce interacting theories with conformal and fermionic symmetries. We then briefly discuss the basic properties of anti de-Sitter space in order to formally define the holographic map.

**References**

- Johanna Erdmenger,
*Introduction to Gauge/Gravity Duality*, (TASI lectures 2017), [arXiv:1807.09872v1 [hep-th]]. - Veronika E. Hubeny,
*The AdS/CFT Correspondence*, [arXiv:1501.00007v2 [gr-qc]]. - Horatiu Nastase,
*Introduction to AdS-CFT*, [arXiv:0712.0689v2 [hep-th]]. - Joseph Polchinski,
*Introduction to Gauge/Gravity Duality*, Lectures at TASI, June 1-7, 2010, arXiv:1010.6134v1 [hep-th]. - Alfonso V. Ramallo,
*Introduction to the AdS/CFT**Correspondence*, [arXiv:1310.4319v3 [hep-th]]. - Hora¸tiu N˘astase,
*Introduction to the AdS/CFT Correspondence*, Cambridge University Press, 2015.

**Presentation**