Zobrazeno 1 - 10
of 125
pro vyhledávání: '"J. A. Oller"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 4, Pp 1-25 (2023)
Abstract We study the mixing of the QCD/QCD-like axion and light-flavor mesons π 0, η, η′ within the framework of U(3) chiral perturbation theory up to next-to-leading order in this work. The axion-meson mixing formulas are calculated order by o
Externí odkaz:
https://doaj.org/article/e4dd274ed753497fb880f59daaffe073
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 8, Pp 1-68 (2022)
Abstract A method to unitarize the scattering amplitude produced by infinite-range forces is developed and applied to Born terms. In order to apply S-matrix techniques, based on unitarity and analyticity, we first derive an S-matrix free of infrared
Externí odkaz:
https://doaj.org/article/b236f34327a0491580dac9fc07f666a8
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 1, Pp 1-20 (2019)
Abstract We study the scattering of the light-flavor pseudoscalar mesons ($$\pi , K, \eta $$ π,K,η ) off the ground-state charmed mesons ($$D,D_s$$ D,Ds ) within chiral effective field theory. The recent lattice simulation results on various scatte
Externí odkaz:
https://doaj.org/article/8038077dd2fa4a00bbbdb93123fe52f2
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 7, Pp 1-21 (2017)
Abstract We analyze vector meson–vector meson scattering in a unitarized chiral theory based on a chiral covariant framework restricted to $$\rho \rho $$ ρ ρ intermediate states. We show that a pole assigned to the scalar meson $$f_0(1370)$$ f 0
Externí odkaz:
https://doaj.org/article/c9da0ee26f334775b2bb12a87d1f009d
Autor:
Xian-Wei Kang, J. A. Oller
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 6, Pp 1-28 (2017)
Abstract We introduce a near-threshold parameterization that is more general than the effective-range expansion up to and including the effective range because it can also handle a near-threshold zero in the $$D^0\bar{D}^{*0}$$ D 0 D ¯ ∗ 0 S-wave.
Externí odkaz:
https://doaj.org/article/8b4345a5dd9c401b9327f54904e58d14
Publikováno v:
Advances in High Energy Physics, Vol 2019 (2019)
In this work, we study the resonances near the thresholds of the open heavy-flavor hadrons using the effective-range-expansion method. The unitarity, analyticity, and compositeness coefficient are also taken into account in our theoretical formalism.
Externí odkaz:
https://doaj.org/article/f1d7458d60c74fb38cbabe435996bf68
Publikováno v:
Advances in High Energy Physics, Vol 2019 (2019)
Externí odkaz:
https://doaj.org/article/b70ea5349ac8490fa9dfb756a9bf3c7c
Autor:
Ulf-G. Meißner, J. A. Oller
Publikováno v:
Physics Letters B, Vol 751, Iss C, Pp 59-62 (2015)
Making use of a recently proposed formalism, we analyze the composite nature of the Pc(4450) resonance observed by LHCb. We show that the present data suggest that this state is almost entirely made of a χc1 and a proton, due to the close proximity
Externí odkaz:
https://doaj.org/article/dc9a4a7fde834b559294ed5b270f475d
Autor:
Luis Duque, Antonio Molinero, Dr. J. Carlos Oller, Dr. J. Miguel Barcala, Dr. E. Diaz‐Alvarez, Dr. M. Antonia Folgado, Dr. Antonio M. Chaparro
Publikováno v:
ChemElectroChem, Vol 11, Iss 14, Pp n/a-n/a (2024)
Abstract Hydrogen transport in the anode of a proton‐exchange membrane fuel cell (PEMFC) has been studied with a modulation technique relating the hydrogen flow‐rate ( Q˜H2 ) and the faradaic current ( I˜ ), called Current‐modulated Hydrogen
Externí odkaz:
https://doaj.org/article/e4fc613a7afc41ed8aac7bdc46754149
Autor:
D. Bernal-Casas, J. M. Oller
Publikováno v:
Entropy, Vol 26, Iss 5, p 370 (2024)
With this follow-up paper, we continue developing a mathematical framework based on information geometry for representing physical objects. The long-term goal is to lay down informational foundations for physics, especially quantum physics. We assume
Externí odkaz:
https://doaj.org/article/0dfceda747414b37b6f0bb10b5bfeeff