Event calendar file
24-28 November 2025
Pontificia Universidad Católica de Chile; Campus San Jaoquín
Chile/Continental timezone
- saul.ortiz@umich.mx
Support
Home > Contribution List
Contribution List
Displaying 33
contributions
out of
33
Type: Oral Presentation
Ultrarelativistic heavy-ion collisions (HIC) allows us to probe the properties of strongly correlated quantum matter, at high energy density and pressure, as examined under the rationale of Quantum Chromodynamics (QCD). Even though thermalization occurs quite early in the resulting deconfined quark-gluon plasma (QGP) phase, strong transient effects depending on nearly random initial conditions pri
... More
Presented by Prof. Enrique MUÑOZ
on
26 Nov 2025
at
10:30
Type: Oral Presentation
The mean-field approximation to the Linear Sigma Model fails qualitatively in the chirally restored phase at high temperature, baryon density, or isospin asymmetry, predicting tachyonic meson masses that signal a instability of the trivial vacuum. A longstanding question is whether this pathology persists in a more complete treatment or is merely an artifact of the crude approximation.
Presented by Mr. Luis Carlos PARRA
on
26 Nov 2025
at
11:45
The impact of magnetic fluctuations on the $\lambda\phi^4$ theory is analyzed by modeling these fluctuations as white noise following the theory from [1] and examining their averaged effect in the weak field regime ($|eB| \ll m^2$). This way, it is found that the first-order contribution of order $\Delta_Be^2$ to the two-point correlation function manifests as a self-energy correction, leading to
... More
Presented by Mr. Julian TOVAR
on
25 Nov 2025
at
16:30
We consider the effects of a noisy weak electric field over the two-point and four-point correlation functions of a self interacting complex scalar field theory, as an approach to the extreme physical conditions reproduced in scenarios such as relativistic heavy-ion collisions. The bosonic propagator in presence of a constant electric field is derived using the Schwinger-Fock proper time method. T
... More
Presented by Mrs. Melanie MARTÍNEZ VILLARREAL
on
25 Nov 2025
at
16:35
TBC
Presented by Prof. Alfredo RAYA
on
28 Nov 2025
at
11:45
Using the AdS/QCD models, where the particles of the 4D QCD are represented by fields living in a 5D Anti de Sitter space, one can study many properties of heavy mesons. This includes the mass spectrum, decay constants, the behavior in the presence of a thermal medium, etc. However, this approach sees the mesons as point particles, in contrast to what is expected for hadrons. In this work, we show
... More
Presented by Ms. William SANTOS CUNHA
on
24 Nov 2025
at
11:45
The gluon propagator encodes key nonperturbative features of QCD, such as confinement and the dynamical generation of a gluon mass. We present recent results connecting the theoretical structure of the propagator with phenomenological applications. Using QCD effective charges extracted from nonperturbative inputs, we evaluate higher-twist contributions to the proton structure function $F_2$ and an
... More
Presented by Dr. Emerson LUNA
on
28 Nov 2025
at
10:30
Type: Theoretical Lecture
Understanding the behavior of QCD matter under strong magnetic fields has become essential for interpreting heavy-ion collision results, modeling the early universe, and studying the physics of magnetars. In this lecture, I will present how the SU(2) Linear Sigma Model coupled to quarks (LSMq) can be used as an effective framework to explore the chiral phase transition and to construct an effectiv
... More
Presented by Dr. Luis HERNANDEZ
on
24 Nov 2025
at
14:45
Strong magnetic fields that are expected to appear in
dense stars, magnetars and in (peripheral) relativistic heavy ion collisions, may be of the order of fractions of hadron masses, being therefore relatively weak as compared to hadron mass scales, such as the constituent quark or pion masses.
In this limit, it is possible to derive (semi)analytical expressions for
magnetic field correction
... More
Presented by Prof. Fabio BRAGHIN
on
27 Nov 2025
at
14:45
Experiments with non-central relativistic heavy ions collisions produces a Quark-gluon plasma with the higher vorticity ever observed in nature. This leads us to want to find the physical phenomena hidden in the behavior of this system. For that, some expectation values are calculated by effect of the rotating fermionic gas, with a rigid rotating model and a fixed particle number thinking in a fre
... More
Presented by Mr. Camilo GONZÁLEZ
on
25 Nov 2025
at
16:50
In the context of relativistic heavy-ion collisions, an excess has been detected in the yield of photons and in the strength of the elliptic flow, sometimes referred to as the photon puzzle. It has been argued that, due to the presence of strong magnetic fields in these systems, new channels of photon production can be present and contribute to this excess. To this aim, we study the gluon fusion a
... More
Presented by Mr. Santiago BERNAL LANGARICA
on
25 Nov 2025
at
12:00
Being penetrating probes, direct photons are faithful historians of the
system evolution in high energy collisions, but their message is
notoriously hard to decypher. In this talk we will overview what has been
learned in the past, then turn to recent results and controversies, like
the "direct photon puzzle" or the discrepancy between the PHENIX and STAR
direct photon measurements. Signif
... More
Presented by Prof. Gabor DAVID
on
27 Nov 2025
at
12:15
We investigate the behavior of pion and rho meson decay constants in the presence of a uniform external magnetic field oriented along the z-axis. The analysis is based on the study of two-point correlation functions ⟨AA⟩, ⟨AP⟩, ⟨PP⟩, and ⟨VV⟩, where A, V, and P denote axial-vector, vector, and pseudoscalar currents, respectively. The quark propagators are described using the Schwin
... More
Presented by Mr. Rosas MIGUEL
on
25 Nov 2025
at
16:45
We will present the calculation of the polarization tensor of a photon in the presence of electric fields, to 1-loop order. We will analyze the behavior of the imaginary part of the polarization tensor as a function of the electric field strength, in order to observe the changes produced by the electric fields present in the probability of producing dileptons. The result will be shown considering
... More
Presented by Mr. Juan Daniel MARTÍNEZ SÁNCHEZ
on
25 Nov 2025
at
16:40
TBC
Presented by Dr. Ana MIZHER
on
27 Nov 2025
at
15:30
In heavy-ion collisions (HIC), different environments such as strong magnetic fields and chirally imbalanced media can be realized. In the former case, strong magnetic fields are expected to be generated perpendicular to the reaction plane in noncentral HIC experiments conducted at BNL (RHIC) and the LHC (ALICE). Under such conditions, several aspects of quantum chromodynamics (QCD) can be explore
... More
Presented by Dr. William TAVARES
on
27 Nov 2025
at
10:30
This presentation will discuss on the experimental methods used at the LHC to probe the intense electromagnetic fields generated in ultra-relativistic heavy-ion collisions. We will examine the use of soft probes, such as charge-dependent azimuthal correlations and dilepton production from resonance decays, reviewing current methodologies and challenges. Pending the timely approval of ongoing analy
... More
Presented by Prof. Cesar Augusto BERNARDES
on
26 Nov 2025
at
09:30
Type: Experimental Lecture
Heavy-ion collisions provide a unique opportunity to study novel QCD phenomena. The interplay between the chiral anomaly and the magnetic/vortical field created in such collisions can give rise to anomalous chiral effects. In addition, the magnetic field might affect the kinematics of final state particles. In this talk, the latest results from ALICE searches for effects of the electromagnetic fie
... More
Presented by Alexandru Florin DOBRIN
on
24 Nov 2025
at
09:30
Type: Experimental Lecture
TBC
Presented by Prof. Cesar Augusto BERNARDES, Dr. Cesar BERNARDES
on
27 Nov 2025
at
09:30
In this work, we study the effects of random temperature fluctuations on the equation of state of a noninteracting, relativistic fermion gas by means of the replica method. This picture provides a conceptual model for
a non-equilibrium system, depicted as an ensemble of subsystems at different temperatures, randomly distributed
with respect to a given mean value. We then assume the temperature d
... More
Presented by Prof. Marcelo LOEWE
on
24 Nov 2025
at
15:30
The chiral magnetic effect (CME) is a parity violating phenomenon in quantum chromodynamics resulting from topological vacuum fluctuations in the presence of a strong magnetic field. The CME has been searched for in relativistic heavy ion collisions where high-temperature quark-gluon plasma is created allowing appreciable vacuum fluctuations and where strong magnetic fields are produced at the ini
... More
Presented by Dr. Fuqiang WANG
on
24 Nov 2025
at
12:15
I will present the calculation of the propagator of a charged vector boson in the presence of an external magnetic field using the Ritus Eigenfunction method. Although this is not a novel result, the methodology used throughout the calculation is relevant in the sense that the calculation is done with a diagonalized equation of motion. This advantage allows a more direct interpretation of the ener
... More
Presented by Mr. Manuel Emiliano MONREAL CANCINO
on
27 Nov 2025
at
11:45
TBC
Presented by Dr. Saul HERNANDEZ ORTIZ
on
28 Nov 2025
at
15:00
The inverse magnetic catalysis (IMC) of chiral symmetry breaking in Quantum Chromodynamics (QCD), as predicted by Lattice QCD simulations, can be successfully reproduced within the Nambu–Jona-Lasinio (NJL) model when the coupling constant decreases with the magnetic field strength B and temperature T. In order to mathematically model this phenomenon, a thermo-magnetic dependence of the coupling
... More
Presented by Mr. Jose Luis FLORES PON
on
25 Nov 2025
at
16:55
In this work we use the $SU(3)$ formulation of the Nambu--Jona-Lasinio model, with the introduction of the 't Hooft determinant as a six-point interaction to reproduce the breaking of the $U_A(1)$ symmetry.
The Schwinger proper-time method is used to include constant magnetic fields, while the temperatures are included by the imaginary-time formalism in terms of the Matsubara frequencies.
For th
... More
Presented by Dr. Joana C. SODRÉ
on
25 Nov 2025
at
10:30
Type: Oral Presentation
The Schwinger propagator under external electric and magnetic field is not well defined as a retarded advanced or time ordered propagator. Here, the necessary conditions for establishing a well-defined time-ordered propagator within the Schwinger formalism will be presented, specifically concentrating on constant and uniform electromagnetic fields.
An explicit example of quasistatic electric curr
... More
Presented by Dr. Cristian VILLAVICENCIO
on
26 Nov 2025
at
12:15
Type: Oral Presentation
We show that the chiral soliton lattice (ChSL) is, in a precise sense, a universal feature of the low-energy limit of QCD minimally coupled to Maxwell theory. By considering a suitable ansatz adapted to describe topological solitons at finite baryon density in a constant magnetic field, the generalized Skyrme model coupled to the Maxwell theory (including the corrections in the 't Hooft large $N_c
... More
Presented by Dr. Aldo VERA
on
24 Nov 2025
at
10:30
