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08/09/2015, 08:30
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Carlos Pajares Vales (Universidade de Santiago de Compostela (ES))08/09/2015, 09:00
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Antonio Pich (University of Valencia)08/09/2015, 09:15Strongly-coupled electroweak scenarios are characterized by a spectrum of massive states at high scales. Using effective field theory techniques, we analyse their phenomenological implications at low energies. Integrating out the heavy particles, one gets a definite pattern of low-energy couplings in the resulting effective Lagrangian, which depends on the quantum numbers associated with the...Go to contribution page
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Antonio Dobado (Universidad Complutense (ES))08/09/2015, 09:45The current data concerning the Higgs discovered at the LHC are compatible with having a strongly interacting electroweak symmetry breaking dynamics for the Higgs and the would-be Goldstone bosons. In this work we review this possibility and the consequences for LHC II.Go to contribution page
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Prof. Joan Solà (Universitat de Barcelona)08/09/2015, 10:15An accelerated universe should naturally have a vacuum energy density determined by its dynamical curvature. The so-called cosmological constant is most likely a temporary description of a cosmic variable that has been drastically evolving from the early inflationary era to the present. In this talk, I will discuss a unified picture (in fact a class of models) of the expansion history of our...Go to contribution page
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Antonio Lopez Maroto08/09/2015, 10:45The standard Higgs mechanism for electroweak symmetry breaking predicts, apart from the existence of a scalar boson, the presence of a constant vacuum expectation value of the Higgs field. The Higgs vev, being determined by the effective potential, can however acquire space-time fluctuations from loop effects in inhomogeneous metric backgrounds. In this talk, we will present recent...Go to contribution page
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Domenec Espriu Climent (University of Barcelona (ES))08/09/2015, 11:30We study the Dine-Fischler-Srednicki (DFS) model in the light of the recent Higgs LHC results and electroweak precision data. The DFS model is a natural extension of the two-Higgs doublet model endowed with a Peccei-Quinn symmetry and leading to a physically acceptable axion. For generic couplings, the model reproduces the minimal Standard Model showing only tiny deviations (extreme decoupling...Go to contribution page
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Sergey Afonin (Saint Petersburg State University)08/09/2015, 12:00One of the most known result of the string theory consists in the idea that some strongly coupled gauge theories may have a dual description in terms of a higher dimensional weakly coupled gravitational theory --- the so-called AdS/CFT correspondence or gauge/gravity correspondence. The attempts to apply this idea to the real QCD are often referred to as "holographic QCD" or "AdS/QCD...Go to contribution page
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Prof. Alfonso Ramallo (University of Santiago de Compostela)08/09/2015, 12:30After a brief review of the Landau Fermi liquid theory, we will discuss a holographic modeling of cold matter in terms of D-brane intersections. We will analyze the different regimes of these systems as a function of the temperature and, in particular, their zero-sound and diffusion modes.Go to contribution page
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Prof. Manuel Asorey (Universidad de Zaragoza)08/09/2015, 14:30We will review the latest developments on global properties of the renormalization group flow in different space-time dimensions (c-theorem, a-theorem and F-theorem). In particular, we will address the case of odd dimensions where new entropic conjectures have been recently formulated.Go to contribution page
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Prof. Joaquin SANCHEZ-GUILLEN (USC)08/09/2015, 15:00The foundations of new Skyrme models with integrability and BPS properties, are presented. Their main applications for hadrons, nuclei and nuclear matter are briefly reviewed. A new field theortical thermodinamics and a geometric theory of matter are thereby established and explained.Go to contribution page
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Prof. Xavier Viñas (University of Barcelona)08/09/2015, 15:30To be announced.Go to contribution page
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Mr Carlos Naya (USC)08/09/2015, 16:20The Skyrme model was conceived as a low energy effective field theory of strong interactions where the fundamental degrees of freedom are the pions and nuclei appear as collective excitations. In this talk, we will focus on a special case of these Skyrme theories called BPS Skyrme Model, which allows for a good description of binding energies of high nuclei. Further, here we will present two...Go to contribution page
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Prof. Yuri Pismak (Saint-Petersburg State University)08/09/2015, 16:40The results obtained in the models of interaction 2-dimensional material objects with QED fields, constructed on the basis of Symanzik approach are presented. The possibility of applications of such methods for modeling the interaction of photons and electrons with hadrons and nuclei is discussed.Go to contribution page
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Sergey Vernov (Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow Stat)08/09/2015, 17:00
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Prof. Francisco Fernandez (Universidad de Salamanca)08/09/2015, 17:20The discovery of the $X(3872)$ by the Belle collaboration [1] and its confirmation by BaBar and CDF has provided the best candidate to an exotic structure in the meson sector. Because of its proximity to the $D^*D$ threshold a description of this state in terms of a $c\bar c$ state coupled to a $D^*D$ molecular structure seems to be natural. For the heavy quark sector, the spin-dependent...Go to contribution page
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Andrey Slavnov (Steklov Mathematical Institute and Moscow State University)09/09/2015, 09:00A new method of quantization of the nonabelian gauge theories is reviewedGo to contribution page
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4. Summation of UV divergences in maximally supersymmetric Yang-Mills theories in diverse dimensionsProf. Dmitry Kazakov (JINR)09/09/2015, 09:30We consider the UV divergences in scattering amplitudes in maximally supersymmetric Yang-Mills theories in diverse dimensions: (D=6, N=2), (D=8, N=1) and (D=10, N=1) cases. The recurrence relation is found that allows one to get the leading divergences in all orders of PT for the four point amplitude. It is checked by explicit calculations in several loops. Infinite summation of the leading...Go to contribution page
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Dr Mateos Guilarte Juan (Universidad de Salamanca)09/09/2015, 10:00Many phenomena in statistical physics and quantum field theory are effectively described by means of spectral zeta function techniques. In particular, one-loop quantum fluctuations around classical backgrounds engender divergences that may be regularized via spectral zeta function analytic continuation regularization. Tipically, in solitonic and/or gravitational backgrounds, e.g., magnetic...Go to contribution page
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Ekaterina Pozdeeva (SINP MSU)09/09/2015, 10:20The possibility to construct inflationary models for the renormalization-group (RG) improved potentials corresponding to scalar electrodynamics and to SU(2) and SU(5) models is investigated. In all cases, the tree-level potential, which corresponds to the cosmological constant in the Einstein frame, is seen to be nonsuitable for inflation. Rather than adding the Hilbert-Einstein term to...Go to contribution page
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Alexey Golovnev09/09/2015, 10:40There are two basic ways of modifying gravity: considering either more general theories for the metric or allowing spacetime degrees of freedom besides the metric. Here the aim is to find possible relations between gravitational theories obtained within these two seemingly distinct approaches. In the framework of the so called C-theories the spacetime connection has a prescribed relation to...Go to contribution page
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Vladimir Andrianov (University of St Petesburg)09/09/2015, 11:20
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Alexander Andrianov (Saint Petersburg State University)09/09/2015, 11:50According to modern observational data the phantom equation of state for dark energy is not excluded. This scenario creates problems with stability of universe evolution. An alternative to phantom models is given by models of scalar matter with non-Hermitian, PTsymmetric interaction[1]. In this talk we present the set of such models with several scalar fields which are exactly...Go to contribution page
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Prof. J. Luis Miramontes (Universidade de Santiago de Compostela)09/09/2015, 12:10I will summarize recent work aimed to show that sigma models on (semi-)symmetric spaces F/G admit discrete integrable deformations that can be viewed as deformations of the F/F gauged WZW model. For the AdS(5)xS(5) world-sheet theory, F=PSU(2,2|4) and the resulting theory has just the right amount of kappa-symmetries, which points to the existence of a new fully consistent deformed string...Go to contribution page
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Oleg Novikov (Saint-Petersburg State University, V.A.Fock Department of Theoretical Physics)09/09/2015, 12:30The model of scalar matter that permits the formation of a domain wall (thick brane) is studied. The potential of the scalar matter is assumed to have $O(N)$ symmetry softly broken by terms quadratic in fields. One of the fields develops delocalized kink background while others may or may not form localized configurations depending on the relative values of the parameters. We present exact...Go to contribution page
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Oriol Pujolas Boix09/09/2015, 12:50Recently, a new mechanism to generate a naturally small electroweak scale has been proposed. It exploits the coupling of the Higgs to an axion-like field and a long era in the early universe where the axion unchains a dynamical screening of the Higgs mass. We present a new realization of this idea with the new feature that it leaves no signs of new physics up to a rather large scale, 10^9 GeV,...Go to contribution page
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Prof. Lev Lipatov (Petersburg Nuclear Physics Institute)10/09/2015, 09:00The theory of high energy processes in QCD is based on the gluon reggeization. In particular, Pomeron and Odderon are composite states of two and three reggeized gluons, respectively. We discuss the effective action and corresponding classical equations for quarks and gluons interacting with reggeized gluons. In the extended N=4 supersymmetric gauge model the Pomeron is dual to the...Go to contribution page
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Tolga Altinoluk10/09/2015, 09:30We reconsider the perturbative next-to-leading calculation of the single inclusive hadron production in the framework of the hybrid formalism, applied to hadron production in proton-nucleus collisions. We introduce the explicit requirement that fast fluctuations in the projectile wave function which only exists for a short time are not resolved by the target.This Ioffe time cutoff also...Go to contribution page
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Victor Kim (Petersburg Nuclear Physics Institute)10/09/2015, 10:00To be announced.Go to contribution page
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Prof. Mikhail Braun (Department of High Energy Physics, Saint-Petersburg State University, S. Petersburg, Russia)10/09/2015, 10:30High-energy collisions of two nucleons on two nucleons are studied in the BFKL approach in the leading approximation in $\alpha_sN_c$. Total cross-section as well as single and double inclusive cross-sections for gluon production are considered. Diagrams both with and without redistribution of colour are taken into account. It is found that intermediate BKP states consisting of 4...Go to contribution page
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Dr Grigori Feofilov (Saint-Petersburg State University)10/09/2015, 11:20\documentclass[]{article} \begin{document} \title{ Repulsion of quark-gluon strings and collective effects in two-particle angular long-range correlations in hadronic collisions } \author{ I.G.Altsybeev, G.A.Feofilov\\ {\it \small Saint-Petersburg State University}\\ } \date{}%draft v0.2} \maketitle Color flux tubes (quark-gluon strings), formed at early stages of...Go to contribution page
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Carlos Pajares Vales (Universidade de Santiago de Compostela (ES))10/09/2015, 11:40
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Vladimir Vechernin (Saint-Petersburg State University)10/09/2015, 12:00The explicit analytical expression for the asymptotic of the correlation coefficient between mean event transverse momenta of charged particles produced in separated rapidity intervals is derived. The asymptotic at large string density is obtained in the model with string fusion by introducing a lattice in the transverse plane and assuming the translational invariance of the particle...Go to contribution page
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Igor Altsybeev (St. Petersburg State University (RU))10/09/2015, 12:20I. Altsybeev for the ALICE Collaboration. The strength of forward-backward (FB) multiplicity correlations is measured by the ALICE detector in proton-proton collisions at $\sqrt{s}=0.9$, 2.76 and 7 TeV. Such correlations are considered to be a powerful tool for the exploration of the initial conditions of hadronic interactions. The measurement is performed in the central pseudorapidity...Go to contribution page
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Vladimir Kovalenko (St. Petersburg State University (RU))10/09/2015, 12:40The exploration of the QCD phase diagram and a search for the critical point is one of the main subjects of heavy ion physics. The experimental investigation of the phase diagram of a strongly interacting matter is related to the study of the fluctuations and correlations of observables in the nuclear collisions at high energy. Around the critical point, enhanced fluctuations are expected to...Go to contribution page
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Joaquim Gomis (Universitat de Barcelona)10/09/2015, 14:30We investigate particles whose dynamics are invariant under the (AdS) Carroll group. Although a single free (Ads) Carroll particle.has non-trivial dynamics, there is non-trivial dynamics when there is a coupling to background Carroll gauge fields or when we consider two particles. The extension to the supersymmetric case will be considered. The construction of a Carroll string will be...Go to contribution page
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Jose R. Pelaez (Universidad COmplutense)10/09/2015, 15:00In this talk I will review the present status of the lightest scalar meson resonance, which has been a controversial state for many decades despite playing a central role in our understanding of the QCD spontaneous symmetry breaking and the nucleon-nucleon attraction. Recently, the debate about its existence and parameters has been finally settled. In addition, there are strong indications...Go to contribution page
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Mr Manoel Rodríguez Calvo (Universidade de Santiago de Compostela)10/09/2015, 15:30Multiple gluon emissions of a high energetic parton passing through a hot and dense QCD medium are usually assumed to be independent and given by iterating the well-studied single inclusive gluon emission. However, it is known that interferences among different emitters in the parton cascades are known to lead to angular ordering of gluon emissions in the vacuum. Motivated by this, we consider...Go to contribution page
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Dr Pia Zurita (Universidade de Santiago de Compostela)10/09/2015, 16:20To be announced.Go to contribution page
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Angel Gomez Nicola (Universidad Complutense Madrid)10/09/2015, 16:40I will discuss recent progress in low-energy QCD at finite temperature regarding chiral symmetry restoration and properties of meson gases relevant for Heavy-Ion Physics and lattice simulations. In particular, I will present a recent analysis of scalar and pseudo-scalar susceptibilities $\chi_S$ and $\chi_P^a$, which allows to understand chiral partner degeneration at chiral symmetry...Go to contribution page
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Manoel R. Moldes10/09/2015, 17:00e+A collisions can bring useful information to questions that A+A cannot (fully) answer. In particular, they can shed light on the distribution of partons within nuclei. This is most relevant in the case of the gluon, which suffers from huge uncertainties in the small-x regime. We show how to implement data from e+A collisions into existing nPDFs and the impact these collisions have on said...Go to contribution page
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Xavier Viñas (Universidad de Barcelona)10/09/2015, 17:20
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Dmitry Gridnev (Saint Petersburg State University)10/09/2015, 17:30
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Mr Antonio J. Cuesta (Institut de Ciències del Cosmos - Universitat de Barcelona)11/09/2015, 09:00The tiny inhomogeneities left over from the inflationary phase seeded the early Universe with primordial density perturbations. The photon-baryon fluid reacted to these perturbations by forming spherical pressure waves known as baryon acoustic oscillations (BAO). These waves propagated through the primordial plasma until the Universe became transparent to radiation, effectively stopping the...Go to contribution page
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Jaime Alvarez-Muniz (Universidad de Santiago de Compostela)11/09/2015, 09:20The observation of ultrahigh energy neutrinos has become a priority in experimental Astroparticle Physics. They can be detected with a variety of techniques. In particular, neutrinos can interact in the atmosphere or in the Earth's crust, producing air showers that can be observed with arrays of detectors at the ground. With the Surface Detector of the Pierre Auger Observatory we are...Go to contribution page
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Manuel Masip (Universidad de Granada)11/09/2015, 09:40IceCube has published the observation of 37 events of TeV-PeV energies. We show that the angular distribution, the spectrum and the muon to shower ratio of these events can not be explained by atmospheric neutrinos. On the other hand, IceCube's interpretation in terms of a diffuse astrophysical flux with $E^{-2}$ spectrum implies events at the Glashow resonance (6.4 PeV) that have not been...Go to contribution page
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Prof. Emilio Elizalde (ICE-CSIC and IEEC, Barcelona)11/09/2015, 10:00What drives the acceleration of the Universe expansion? Dark energy, of course, but what is it? Beautiful mathematics, involving the zeta function of pseudodifferential operators, are key in answering this question. After summarizing the uses of the zeta function for the definition of regularized traces and determinants, the motivations behind the celebrated Chowla-Selberg formula will be...Go to contribution page
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Irina Aref'eva (Steklov mathematical Institute)11/09/2015, 10:20
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Valery Rubakov (Ins. for Nuclear Research, Ras, Moscow)11/09/2015, 10:40
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Ines Valino (University of Santiago de Compostela)11/09/2015, 11:30We highlight the main results obtained by the Pierre Auger Collaboration in its quest to unveil the mysteries associated with the nature and origin of the highest-energy cosmic rays. The observatory has steadily produced high-quality data for more than 10 years, which have already led to a number of major breakthroughs in the field contributing to the advance of our understanding of these...Go to contribution page
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Sergey Kolevatov (SPbSU)11/09/2015, 12:00We consider the effect that the appearance of pseudoscalar condensates in a neutron star can have on its cooling rate. We make no particular assumption on the origin and characteristics of these possible condensates and only assume that in regions where the pseudoscalar density varies the propagation of photons is governed by modified Maxwell-Chern-Simons electrodynamics. We find that this...Go to contribution page
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Alexei Starobinsky (Landau Inst. of Theoretical Physics, RAS, Moscow)11/09/2015, 12:30
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Sergey Afonin (Saint Petersburg State University)
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Carlos Naya Rodriguez (Universidade de Santiago de Compostela (ES))
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Alfonso Vázquez Ramallo (Universidade de Santiago de Compostela)
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Xavier Viñas (Universidad de Barcelona)
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Antonio Lopez Maroto
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Sergey Kolevatov (SPbSU)
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Francisco Fernandez (Universidad de Salamanca)
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Vladislav Korotkov (Institute for High Energy Physics (RU))
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Antonio Pich (University of Valencia)
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Yuri Pismak (University of St. Petesburg)
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Ricardo Vázquez (Universidade de Santiago de Compostela)
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Joan Sola (Universitat de Barcelona)
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Antonio Pich (University of Valencia)
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Antonio Dobado
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Ines Valino (University of Santiago de Compostela)
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Manuel Asorey (Unknown)
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