A5056862268- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Nuclear physics research studies
- Advanced NMR Techniques and Applications
- Nuclear Physics and Applications
- Particle accelerators and beam dynamics
- Black Holes and Theoretical Physics
- Muon and positron interactions and applications
- Medical Imaging Techniques and Applications
- Radioactive element chemistry and processing
- Superconducting Materials and Applications
- Particle Detector Development and Performance
- Quantum, superfluid, helium dynamics
- Radiation Detection and Scintillator Technologies
- Spacecraft and Cryogenic Technologies
- Pulsars and Gravitational Waves Research
- Wireless Sensor Networks for Data Analysis
- Advanced Chemical Physics Studies
- Astronomical and nuclear sciences
- Physics of Superconductivity and Magnetism
Istituto Nazionale di Fisica Nucleare, Sezione di Genova
2015-2024
Universidad Nacional Autónoma de México
2015-2023
Kyungpook National University
2022-2023
Universidad Nacional de La Plata
2019-2021
University of Genoa
2019-2020
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud
2019
Istituto Nazionale di Fisica Nucleare
2015-2016
Sapienza University of Rome
2015
We introduce the formalism to describe heavy-ion double-charge-exchange (DCE) processes in eikonal approximation. focus on low-momentum-transfer limit, corresponding differential cross section at $\ensuremath{\theta}={0}^{\ensuremath{\circ}}$, and for first time, we show that it is possible factorize DCE terms of reaction nuclear parts. Whereas $\ensuremath{\theta}\ensuremath{\ne}{0}^{\ensuremath{\circ}}$ case part a convolution beam target matrix elements (NMEs),...
We investigate the hidden-charm pentaquarks as superpositions of $\Lambda_c \bar{D}^{(*)}$ and $\Sigma_c^{(*)} (isospin $I = 1/2$) meson-baryon channels coupled to a $uudc\bar{c}$ compact core by employing an interaction satisfying heavy quark chiral symmetries. Our model can consistently explain masses decay widths $P_c^+(4312)$, $P_c^+(4440)$ $P_c^+(4457)$ with dominant components $\Sigma_c \bar D$ D^\ast$ spin parity assignments $J^P 1/2^{-}, 3/2^{-}$ $1/2^{-}$, respectively. analyze...
The total decay widths of the charmed baryons are calculated by means $^{3}{P}_{0}$ model. Our calculations consider in final states: baryon-(vector/pseudoscalar) meson pairs and (octet/decuplet) baryon-(pseudoscalar/vector) pairs, within a constituent quark Furthermore, we calculate masses baryon ground states their excitations up to $D$-wave model both three-quark quark-diquark schemes, utilizing Hamiltonian based on harmonic oscillator potential plus mass splitting term that encodes spin,...
Background: A systematic exploration of one-nucleon transfer reactions induced by the ($^{18}\mathrm{O},^{19}\mathrm{F}$) and ($^{18}\mathrm{O},^{17}\mathrm{O}$) on different targets ($^{12}\mathrm{C}, ^{16}\mathrm{O}, ^{27}\mathrm{Al}, ^{40}\mathrm{Ca}, ^{48}\mathrm{Ti}, ^{76}\mathrm{Se}, ^{116}\mathrm{Sn}$) is being performed at Istituto Nazionale di Fisica Nucleare--Laboratori Nazionali del Sud (INFN-LNS) beam energies higher than Coulomb barrier. featured aspect adoption a multichannel...
Recently, various two-neutron transfer studies using the $(^{18}\mathrm{O},^{16}\mathrm{O})$ reaction were performed with a large success. This was achieved because of combined use microscopic quantum description mechanism and nuclear structure. In present work we this methodology to study $^{18}\mathrm{O}+^{64}\mathrm{Ni}$ system at 84 MeV incident energy, ground first ${2}^{+}$ excited state residual $^{66}\mathrm{Ni}$ nucleus. All experimental data measured by acceptance MAGNEX...
We provide results for the open-flavor strong decays of strange and non-strange baryons into a baryon-vector/pseudoscalar meson pair. The decay amplitudes are computed in $^3P_0$ pair-creation model, where $s\bar{s}$ suppression is included first time baryon sector, combination with U(7) hypercentral models. effects this mechanism cannot be re-absorbed redefinition model parameters or different choice vertex factor. Our compared existing experimental data previous elementary emission...
In this work, we study the $\Xi_c$ baryon electromagnetic decay widths within constituent quark model formalism through an analysis of transitions from $P-$wave states to ground states. We use non-relativistic limit Hamiltonian interaction on keeping all terms up order $m_j^{-1}$. calculate analytically, for first time, without any further approximation. Specifically, our theoretical results $\Xi_c(2790)^{+/0}$ and $\Xi_c(2815)^{+/0}$ radiative widths, introduction additional parameters,...
Abstract The observation of five $$\varOmega _c $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>Ω</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math> = ssc states by LHCb [Aaij et al. Phys. Rev. Lett. 118 , 182001 (2017)] and the confirmation four them Belle [Yelton D 97 051102 (2018)], may represent an important milestone in our understanding quark organization inside hadrons. By providing results for spectrum _{ c}$$ baryons predictions their $$\varXi...
In this article, we present a complete classification of the negative parity ${\mathrm{\ensuremath{\Xi}}}_{c/b}^{\ensuremath{'}}$ and ${\mathrm{\ensuremath{\Xi}}}_{c/b}$ $P$-wave states: seven belonging to $SU(3)$ flavor sextet antitriplet, calculation strong partial decay widths into ${^{2}\mathrm{\ensuremath{\Sigma}}}_{c}\overline{K}$, ${^{2}\mathrm{\ensuremath{\Xi}}}_{c}^{\ensuremath{'}}\ensuremath{\pi}$, ${^{4}\mathrm{\ensuremath{\Sigma}}}_{c}\overline{K}$,...
We study fermion-boson transitions.Our approach is based on the 3 × subequations of Dirac and Duffin-Kemmer-Petiau equations, which link these equations.We demonstrate that free equation can be invertibly converted to spin-0 in presence a neutrino field.We also show special external fields, upon assuming again existence (Weyl) spinor, transformed reversibly equation.We argue such boson-fermions transitions are consistent with main channel pion decay.
We calculate the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mn>1</a:mn><a:mi>D</a:mi></a:math>, <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mn>2</c:mn><c:mi>P</c:mi></c:math>, and <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mn>2</e:mn><e:mi>S</e:mi></e:math> mass spectra of singly bottom baryons their strong decay widths. The calculations are performed within a harmonic oscillator quark model that...
We describe the electroproduction ratios of baryon-meson states from nucleon, inferring sea quarks in nucleon using an extension quark model that takes into account sea. As a result we provide, with no adjustable parameters, predictions exclusive meson-baryon final states:$\Lambda K^+$, $\Sigma ^{*}K$, K$, $p\pi^0$, and $n\pi^+$. These are agreement new Jlab experimental data showing play important role electroproduction. also predicted further reactions can be measured tested future...
A constituent gluon model that is informed by recent lattice field theory developed. The then used to compute hybrid strong decay widths, can be useful for the GlueX collaboration at Jefferson Lab and PANDA FAIR. Commensurately, forthcoming data from will test model. Widths tend large except those of lightest $S$-wave multiplet. Selection rules, extensions, limitations, applications are discussed.
Abstract In this contribution, we present a study of ground- and excited-state Ω c b baryons consisting two strange quarks heavy charm or bottom quark. An analysis in the quark model shows that recently observed excited states can be interpreted terms λ -mode excitations.
Neutrinoless double beta decay (0νββ) is considered the best potential resource to determine absolute neutrino mass scale. Moreover, if observed, it will signal that total lepton number not conserved and neutrinos are their own anti-particles. Presently, this physics case one of most important research "beyond Standard Model" might guide way towards a Grand Unified Theory fundamental interactions. Since ββ process involves nuclei, its analysis necessarily implies nuclear structure issues....
We develop a Hamiltonian model that incorporates the spin, spin-orbit, and isospin interactions to determine masses of ground states single-bottom baryons their excitations up $D$-wave. Furthermore, we calculate strong decay widths using $^3P_0$ model. Our calculations consider final comprising bottom baryon-(vector/pseudoscalar) meson pairs (octet/decuplet) baryon-(pseudoscalar/vector) within constituent quark In respect, this is most complete investigation which has ever been performed in...
The NUMEN project aims at accessing experimentally driven information on Nuclear Matrix Elements (NME) involved in the half-life of neutrinoless double beta decay (0υββ), by high-accuracy measurements cross sections Heavy Ion (HI) induced Double Charge Exchange (DCE) reactions. Particular interest is given to (18O,18Ne) and (20Ne,20O) reactions as tools for β+ β−β− decays, respectively. First evidence about possibility get quantitative NME from experiments found both kind In experiments,...
The observation of new $Ω_{c}=ssc$ states by LHCb \cite{Aaij:2017nav} and the confirmation four them Belle \cite{Yelton:2017qxg} may represent an important milestone in our understanding quark organization inside hadrons. By providing results for spectrum $Ω_{c(b)}$ baryons predictions their $Ξ_{c(b)}^{+}K^{-}$ decay channels, we suggest a possible solution to $Ω_{c}$ quantum number puzzle. We also discuss why set are most suitable environment test validity three-quark quark-diquark...