Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Roncaglia, R"'
A diquark model previously formulated to describe exotic mesons is extended to dibaryons. In the model, dibaryons containing only light quarks are unbound. The $H$ dibaryon, consisting of $uuddss$ quarks, is unstable by about 90 MeV or more, and shou
Externí odkaz:
http://arxiv.org/abs/hep-ph/9611429
This is a conference mostly devoted to diquarks. Although an exotic meson can in principle be composed of a diquark and an antidiquark, such an exotic is unlikely to be experimentally observable in the near future. The reason, according to the model,
Externí odkaz:
http://arxiv.org/abs/hep-ph/9611428
Publikováno v:
Phys.Rev. D53 (1996) 6678-6681
Regularities in the hadron interaction energies are used to obtain formulas relating the masses of ground-state hadrons, most of which contain heavy quarks. Inputs are the constituent quark model, the Feynman-Hellmann theorem, and the structure of th
Externí odkaz:
http://arxiv.org/abs/hep-ph/9511461
Autor:
Lichtenberg, D. B., Roncaglia, R.
Publikováno v:
Phys.Lett. B358 (1995) 106-108
Sum rules relating the masses of ground-state baryons and mesons are obtained in a constituent quark model. The interaction is assumed to be independent of quark spins except for a spin-dependent part that can be treated as a perturbation. Where data
Externí odkaz:
http://arxiv.org/abs/hep-ph/9505431
Publikováno v:
Phys.Rev.D52:1722-1725,1995
The Feynman-Hellmann theorem and semiempirical mass formulas are used to predict the masses of baryons containing one or two heavy quarks. In particular, the mass of the $\Lambda_b$ is predicted to be $5620 \pm 40$ MeV, a value consistent with measur
Externí odkaz:
http://arxiv.org/abs/hep-ph/9502251
Publikováno v:
Phys.Rev. D51 (1995) 1248-1257
There are striking regularities in the masses and mass differences of known hadrons. Some of these regularities can be understood from known general properties of the interactions of quarks without a need to specify the explicit form of the Hamiltoni
Externí odkaz:
http://arxiv.org/abs/hep-ph/9405392
The Feynman--Hellmann theorem is used to show that vector meson energy eigenvalues are monotonically decreasing functions of the reduced masses of their constituent quarks. The experimental meson masses are used to put constraints on the values of qu
Externí odkaz:
http://arxiv.org/abs/hep-ph/9401213
Autor:
Bettuzzi, S. a, Davalli, P. a, Astancolle, S. a, Pinna, C. a, Roncaglia, R. b, Boraldi, F. a, Tiozzo, R. a, Sharrard, M. c, Corti, A. a, *
Publikováno v:
In FEBS Letters 1999 446(1):18-22
Autor:
Bargellini, A., Piccinini, L., Palma, M., Giacobazzi, P., Scaltriti, S., Mariano, M., Roncaglia, R., Paola Borella
Publikováno v:
Scopus-Elsevier
The aim of this case-control study was to investigate the relationship between trace elements, immune parameters, and human cancer, taking into account some personality traits, such as anxiety, implicated in the modulation of both immune responses an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::4e12a4d9810a112fb155199c43a19cf9
https://hdl.handle.net/11380/618570
https://hdl.handle.net/11380/618570