31 research outputs found
The role of the ILO training centre in the SWDO/AIDOS information campaign against infibulation
No full textThe author shows the role of ILO, International Training Centre of International Labour Organization in SWDO AIDOS projects for the struggle against female genital mutilation.Qoraagu wuxuu ka hadlayaa kaalinta ILO, Xarunta Tababarka Caalamiga ee Ururka Shaqaalaha Caalamiga ah, xagga waxqabashada mashruuca SWDO iyo AIDOS, oo loogu talggalay in uu la dagaallamo gudniinka fircooniga.L'autrice illustra il ruolo dell'ILO, International Training Centre of International Labour Organization nel progetto SWDO e AIDOS nella lotta alla mutilazione genitale femminile
Study of the Bc → J/ψ + D(*)q decays in covariant confined quark model
No full textIn this work we study the Bc → J/ψ + D(*)q decays. It was defined ratios (RD*s/Ds, RD*/D, RD*/D*s and RD/Ds) of nonleptonic branching ratios of Bc meson, which will be hopefully tested on LHC experiments. We compare the obtained results with available experimental data and with the results from other theoretical approaches
Bs → K*0 decay form factors from covariant confined quark model
Get PDFWe evaluate Bs → K*0 transition form factors in the full kinematical region within the covariant confined quark model. The calculated form factors can be used to calculate the Bs → K*0 μ+μ– rare decay branching ratio, which was recently measured by LHCb collaboration
The study of b-s anomaly decays in covariant quark model
No full textThe work is devoted to the study of b-s anomaly decays. We compute the relevant form factors in the framework of the covariant quark model with infrared confinement in the full kinematical momentum transfer region. The calculated form factors are used to evaluate branching fractions and polarization observables in the decay caused by the presence of the intermediate scalar and in the cascade decay . We compare the obtained results with available experimental data and the results from other theoretical approaches
Non-Leptonic Two-Body Decays of Charmed Mesons and CP Violation
Get PDFThe nonleptonic two body decays of the and mesons represent a key subject to study possible effects of CP violation. The attention for these decay modes was triggered four years ago by the results of measurements of the difference between CP asymmetries in charged and final state, . Although the measured is now compatible with zero the nonleptonic decays of charmed mesons into a pair of light mesons is an interesting subject for many reasons. Here we discuss phenomenological models to study the decays into two pseudoscalar mesons
Proceedings of the Helmholtz International Summer School 2016 (HQ 2016) : Quantum Field Theory at the Limits : from Strong Fields to Heavy Quarks
No full textThe Helmholtz International Summer School (HISS) entitled “Quantum Field Theory at the Limits:from Strong Fields to Heavy Quarks (SF→ HQ)”, was held in the period July 18-30, 2016 at the Bogoliubov Laboratory of Theoretical Physics (BLTP) of the Joint Institute for Nuclear Research (JINR)in Dubna, Russia, as part of the activities of the Dubna International Advanced School of Theoretical Physics (DIAS-TH). The HISS series of schools has played an important role in bringing together an international faculty and young physicists (Ph.D. and postdocs), mostly from Russia and Germany, but increasingly also from other countries, including those affiliated to JINR Dubna. They participate in two-week long intense scientific discourse, mainly dedicated lectures on selected topics covering the foundation and the frontiers of high energy physics and cosmology. The novelty of this year’s school was its bifocal interest, which brought together two different physical science communities - particle and laser physicists. There were two broad areas of research covered at this school: heavy quark physics and physics of high field intensities. The focus of the former was on the latest results on heavy quark physics from all four large experimental collaborations at the LHC (ALICE, ATLAS, CMS, LHCb), at the B-factory experiments(BaBar and Belle), and from BESIII. This was accompanied with lectures on the theoretical aspectsof heavy quark physics, Quarkonia and Quarkonia-like multiquarks states (tetra- and pentaquarks), including various state-of-the-art calculational techniques, such as perturbative QCD, lattice-QCD, and effective field theories. The focus on the later topic was on the high intensity frontier and extreme statesof matter as probed by current and upcoming high power laser and high-Z ion facilities all around theworld. An afternoon tour at the heavy ion collider facility NICA, the superconducting accelerator complex under construction at the Veksler-Baldin Laboratory for High-Energy Physics, was also organized
Anomalies in Weak Decays of Hadrons Containing a b Quark
No full textA brief review of the current state of observed deviations of theoretical
predictions from experimental data in semileptonic decays of and
mesons is given. A theoretical analysis of these decays is carried out, taking
into account the effects of new physics, which appear due to the introduction
of new four-fermion operators, which are absent in the basis of the Standard
Model (SM) operators. The necessary form factors are calculated within the
framework of the covariant quark model developed in our papers.Comment: Contribution to: International Conference on Quantum Field Theory,
High-Energy Physics, and Cosmolog
meson parameters and radiative decay width within the covariant confined quark model
Get PDFIn this work we tried to predict the parameters of meson. Simple
assumptions gave us following parametres MeV and
MeV (for GeV
in covariant confined quark model). We calculated widths of radiative decays of
mesons, where and compared them with other theoretical
works. It was shown that the width of the meson very sensitive to
the mass as expected and less to the size parameter
Semileptonic decays of <i>B</i><sub><i>c</i></sub> mesons into charmonium states
Get PDFIn this work we study the semileptonic decays of Bc meson. We evaluated
Bc→ D
D
*
,
B
c
→
D
s
D
s
*
and
Bc→ηc→
J
/
ψ
transitions form factors in the full kinematical region within the covariant quark model. The calculated form factors are used to evaluate the semileptonic decays of Bc meson and it was defined ratios (Rηc , RJ/ψ, RD ,RD*) of the branching ratios, which will be hopefully tested on LHC experiments.We compare the obtained results with the results from other theoretical approaches
Semileptonic decays of Bc mesons into charmonium states
No full textIn this work we study the semileptonic decays of Bc meson. We evaluated
Bc→ D
D
*
,
B
c
→
D
s
D
s
*
and
Bc→ηc→
J
/
ψ
transitions form factors in the full kinematical region within the covariant quark model. The calculated form factors are used to evaluate the semileptonic decays of Bc meson and it was defined ratios (Rηc , RJ/ψ, RD ,RD*) of the branching ratios, which will be hopefully tested on LHC experiments.We compare the obtained results with the results from other theoretical approaches
