Zobrazeno 1 - 10
of 1 049
pro vyhledávání: '"Gutierrez, P L"'
We present a detailed survey of electric, magnetic and quadrupole form factors of light and heavy spin-1 vector mesons. It complements our analogous analysis of the electromagnetic form factors of pseudoscalar and scalar mesons reported earlier. Our
Externí odkaz:
http://arxiv.org/abs/2410.23813
We compute masses of twenty positive parity first radial excitations of spin-$1/2$ and $3/2$ baryons composed of u,d,s,c and b quarks in a quark-diquark picture within a contact interaction model. These excitations comprise of two elements: one chara
Externí odkaz:
http://arxiv.org/abs/2409.06057
We present a calculation for the masses of the first radially excited states of forty mesons and diquarks made up of $u,d,s,c$ and $b$ quarks, including states that contain one or both heavy quarks. To this end, we employ a combined analysis of the B
Externí odkaz:
http://arxiv.org/abs/2405.06101
Autor:
Hernández-Pinto, R. J., Gutiérrez-Guerrero, L. X., Bashir, A., Bedolla, M. A., Higuera-Angulo, I. M.
We carry out a comprehensive survey of electromagnetic form factors of all light, heavy and heavy-light ground-state pseudoscalar and scalar mesons. Our analysis is based upon a Schwinger-Dyson equations treatment of a vector $\times$ vector contact
Externí odkaz:
http://arxiv.org/abs/2301.11881
Plane waves are regarded as the general solution of the wave equation. However the plane wave expansion of standing waves by means of complex phasors leads to a theory in which the time coordinate does not receive the same treatment as the three spac
Externí odkaz:
http://arxiv.org/abs/2208.00551
Primordial black holes in the asteroid-mass window ($\sim 10^{-16}$ to $10^{-11} \rm M_{\odot}$), which might constitute all the dark matter, can be captured by stars when they traverse them at low enough velocity. After being placed on a bound orbit
Externí odkaz:
http://arxiv.org/abs/2205.13003
Autor:
Akras, S., Monteiro, H., Walsh, J. R., García-Rojas, J., Aleman, I., Boffin, H., Boumis, P., Chiotellis, A., Corradi, R. M. L., Gonçalves, D. R., Gutiérrez-Soto, L. A., Jones, D., Morisset, C., Papanikolaou, X.
Integral field spectroscopy (IFS) provides a unique capability to spectroscopically study extended sources over a 2D field of view, but it also requires new techniques and tools. In this paper, we present an automatic code, Spectroscopic Analysis Too
Externí odkaz:
http://arxiv.org/abs/2203.06175
The extraction of elastic form factors for mesons in the context of the contact interaction model is revisited in this manuscript. The dressed masses of quarks and mesons are determined through the gap and Bethe-Salpeter equations. The generic elasti
Externí odkaz:
http://arxiv.org/abs/2201.06150
We calculate masses of light and heavy mesons as well as baryons of negative parity containing $u,d,s,c$ and $b$ quarks. It is an extension of our previous work where we had studied the positive parity baryons. We adopt a quark-diquark picture of bar
Externí odkaz:
http://arxiv.org/abs/2109.09058
Publikováno v:
International Journal of Modern Physics A 2021
In this article, the mass spectra of mesons with one or two heavy quarks and their diquarks partners are estimated within a non-relativistic framework by solving Schr\"odinger equation with an effective potential inspired by a symmetry preserving Poi
Externí odkaz:
http://arxiv.org/abs/2108.12532