This study introduces the parametrization of the pion vector form factor utilizing conformal transformations as an alternative to dispersion theory. After offering a foundational understanding of dispersive bounds, the parmetrization is adjusted such that the form
factor exhibits the desired behavior for asymptotic values and the threshold. The final outcome is assessed by comparing the...
As a result of the collision between heavy ions moving with relativistic or ultra-relativistic velocities, the quark-gluon plasma is produced along with remnants (spectators) which are responsible for generating the electromagnetic field. After the collision, some particles are created in the quark-gluon plasma or a space around by virtual photons interactions. Using the Monte-Carlo method, a...
We determine the masses and residues of the ground and excited spin 1/2 baryons consist of two heavy b or
c quark utilizing the QCD sum rule formalism. In the calculations, we consider the nonperturbative
operators up to ten mass dimensions in order to increase the accuracy compared to the previous calculations. We report the obtained results for both the symmetric and antisymmetric currents...
An overview of our experimental program to detect axions and axion-like particles (ALPs) as possible candidates for Dark Matter (DM) using Nuclear Magnetic Resonance (NMR) techniques within the cosmic axion spin precession experiment (CASPEr) is presented [1]. Axions are hypothetical particles that could also solve the strong CP violation problem. due to the high number density required for...
We discuss the concept of spontaneous symmetry breaking and illustrate it with a general example. We consider Wigner-Weyl and Nambu-Goldstone realisations of symmetry in the quantum theory. Next, we state Goldstone’s theorem and sketch its proof. We discuss why quantum chromodynamics is not realised in the Wigner-Weyl mode. We also consider different order parameters of spontaneous chiral...
The content focuses on the discovery of the Higgs Boson at the Large Hadron Collider (LHC) at CERN. It covers the challenges of detecting the Higgs Boson due to its mass, the purpose and operation of the LHC in creating high-energy collisions, the role of detectors like ATLAS and CMS in detecting the particle, the announcement of its discovery on July 4, 2012, and the subsequent confirmation...
High-precision quantities such as the anomalous magnetic moment of the muon $a_\mu$ have gained increasing interest in the high-energy-physics community. In this context, the Muon g-2 experiment at Fermilab will have an unprecedented precision that requires a commensurate theoretical estimate. The corresponding error is fully driven by hadronic uncertainties, including uncertainties of the...
An overview of our experimental program to detect axions and axion-like particles (ALPs) as possible candidates for Dark Matter (DM) using Nuclear Magnetic Resonance (NMR) techniques within the cosmic axion spin precession experiment (CASPEr) is presented [1]. Axions are hypothetical particles that could also solve the strong CP violation problem. due to the high number density required for...
We discuss the concept of spontaneous symmetry breaking and illustrate it with a general example. We consider Wigner-Weyl and Nambu-Goldstone realisations of symmetry in the quantum theory. Next, we state Goldstone’s theorem and sketch its proof. We discuss why quantum chromodynamics is not realised in the Wigner-Weyl mode. We also consider different order parameters of spontaneous chiral...
The content focuses on the discovery of the Higgs Boson at the Large Hadron Collider (LHC) at CERN. It covers the challenges of detecting the Higgs Boson due to its mass, the purpose and operation of the LHC in creating high-energy collisions, the role of detectors like ATLAS and CMS in detecting the particle, the announcement of its discovery on July 4, 2012, and the subsequent confirmation...
High-precision quantities such as the anomalous magnetic moment of the muon $a_\mu$ have gained increasing interest in the high-energy-physics community. In this context, the Muon g-2 experiment at Fermilab will have an unprecedented precision that requires a commensurate theoretical estimate. The corresponding error is fully driven by hadronic uncertainties, including uncertainties of the...
This study introduces the parametrization of the pion vector form factor utilizing conformal transformations as an alternative to dispersion theory. After offering a foundational understanding of dispersive bounds, the parmetrization is adjusted such that the form
factor exhibits the desired behavior for asymptotic values and the threshold. The final outcome is assessed by comparing the...
As a result of the collision between heavy ions moving with relativistic or ultra-relativistic velocities, the quark-gluon plasma is produced along with remnants (spectators) which are responsible for generating the electromagnetic field. After the collision, some particles are created in the quark-gluon plasma or a space around by virtual photons interactions. Using the Monte-Carlo method, a...
We determine the masses and residues of the ground and excited spin 1/2 baryons consist of two heavy b or
c quark utilizing the QCD sum rule formalism. In the calculations, we consider the nonperturbative
operators up to ten mass dimensions in order to increase the accuracy compared to the previous calculations. We report the obtained results for both the symmetric and antisymmetric currents...