-
Article
Open Accessχc2 tensor meson transition form factors in the light front approach
We continue our work on the light-front formulation of quarkonium γ∗γ transition form factors, extending the formalism to JPC = 2++ tensor meson states. We present an analysis of γ∗γ → χc2 transition amplitude an...
-
Article
Open AccessGravitational waves from composite dark sectors
We study under which conditions a first-order phase transition in a composite dark sector can yield an observable stochastic gravitational-wave signal. To this end, we employ the Linear-Sigma model featuring Nf =...
-
Article
Open AccessExploring mixed lepton-quark interactions in non-resonant leptoquark production at the LHC
Searches for new physics (NP) at particle colliders typically involve multivariate analysis of kinematic distributions of final state particles produced in a decay of a hypothetical NP resonance. Since the pai...
-
Article
Open AccessProbing proton structure with \( \textrm{c}\overline{\textrm{c}} \) correlations in ultraperipheral pA collisions
We study the exclusive diffractive c c ¯ ...
-
Article
Open AccessExclusive photo- and electroproduction of excited light vector mesons via holographic model
In this paper, we study total and differential observables of electro- and photoproduction of light \(\rho \) ...
-
Article
Open AccessLimiting FCNC induced by a CP symmetry of order 4
CP4 3HDM is a three-Higgs-doublet model based on the CP symmetry of order 4 (CP4). Imposing CP4 leads to remarkable connections between the scalar and Yukawa sectors and unavoidably generates tree-level flavor-ch...
-
Article
Open AccessDeep learning searches for vector-like leptons at the LHC and electron/muon colliders
The discovery potential of both singlet and doublet vector-like leptons (VLLs) at the Large Hadron Collider (LHC) as well as at the not-so-far future muon and electron machines is explored. The focus is on a s...
-
Article
Open AccessCDF II W-mass anomaly faces first-order electroweak phase transition
We suggest an appealing strategy to probe a large class of scenarios beyond the Standard Model simultaneously explaining the recent CDF II measurement of the W boson mass and predicting first-order phase transiti...
-
Article
Open AccessLight-front approach to axial-vector quarkonium γ*γ* form factors
In this work, we perform a detailed study of transition form factors for axial- vector meson production via the two-photon fusion process γ*γ* → 1++, with space-like virtual photons in the initial state and a P-w...
-
Article
Open AccessPhenomenology at the large hadron collider with deep learning: the case of vector-like quarks decaying to light jets
In this work, we continue our exploration of TeV-scale vector-like fermion signatures inspired by a Grand Unification scenario based on the trinification gauge group. A particular focus is given to pair-produc...
-
Article
Open AccessA three Higgs doublet model with symmetry-suppressed flavour changing neutral currents
We construct a three-Higgs doublet model with a flavour non-universal U(1) × ℤ2 symmetry. That symmetry induces suppressed flavour-changing interactions mediated by neutral scalars. New scalars with masses below ...
-
Article
Open AccessThermal Field Theory in real-time formalism: concepts and applications for particle decays
This review represents a detailed and comprehensive discussion of the Thermal Field Theory (TFT) concepts and key results in Yukawa-type theories. We start with a general pedagogical introduction into the TFT ...
-
Article
Open AccessPhenomenology of vector-like leptons with Deep Learning at the Large Hadron Collider
In this paper, a model inspired by Grand Unification principles featuring three generations of vector-like fermions, new Higgs doublets and a rich neutrino sector at the low scale is presented. Using the state...
-
Article
Open AccessProspects for new physics from gauge left-right-colour-family grand unification hypothesis
Given the tremendous phenomenological success of the Standard Model (SM) framework, it becomes increasingly important to understand to what extent its specific structure dynamically emerges from unification pr...
-
Article
Open AccessDPS mechanism for associated \(c\bar{c} b\bar{b}\) production in AA UPCs
We discuss the associated \(c\bar{c}\)cc¯ and \(b\bar{b}\)bb¯ quark pairs production in the double-parton scattering (DPS) process in ultraperipheral (UPCs) AA collisions. We derive an analogue of the inclusive D...
-
Article
Open AccessHadroproduction of scalar P -wave quarkonia in the light-front kT -factorization approach
In this work, we present a thorough analysis of scalar P -wave χQ0, Q = c, b quarkonia electromagnetic form factors for the γ∗γ∗ → χQ0 couplings, as well as their hadroproduction observables in k⊥-factorisation u...
-
Article
Open AccessSpin-dependent Pomeron and Odderon in elastic proton–proton scattering
We introduce a new model of near-forward elastic proton–(anti)proton scattering at high energy based on the modern formulation of Pomeron and Odderon in terms of Wilson lines and generalized transverse momentu...
-
Article
Open AccessPrompt hadroproduction of ηc(1S, 2S) in the kT-factorization approach
In this work, we present a thorough analysis of ηc(1S, 2S) quarkonia hadroproduction in k⊥-factorisation in the framework of the light-front potential approach for the quarkonium wave function. The off-shell matr...
-
Article
Open AccessD-wave effects in diffractive electroproduction of heavy quarkonia from the photon-like \(V\rightarrow Q{\bar{Q}}\) transition
We analyse the validity of a commonly used identification between structures of the virtual photon \(\gamma ^*\rightarrow Q\bar{Q}\)γ∗→QQ¯ and vector meson \(V\rightarrow Q{\bar{Q}}\)V→QQ¯ transitions. In the exi...
-
Article
Open AccessProbing double parton scattering via associated open charm and bottom production in ultraperipheral pA collisions
In this article, we propose a novel channel for phenomenological studies of the double-parton scattering (DPS) based upon associated production of charm \(c{\bar{c}}\)cc¯ and bottom \(b{\bar{b}}\)bb¯ quark pairs ...
