Zobrazeno 1 - 10
of 358
pro vyhledávání: '"M. Pavón"'
We consider a possible resummation of subleading effects in two-body systems with a large scattering length as described by a short-range effective field theory (EFT). In particular, we investigate the consequences of a resummation of part of the ran
Externí odkaz:
http://arxiv.org/abs/2403.16596
Autor:
Valderrama, M. Pavon
Publikováno v:
Phys. Rev. D 98, 054009 (2018)
Recently the Belle collaboration has discovered a narrow $S=-3$ baryon, the $\Omega(2012)$. We explore the possibility that the $\Omega(2012)$ is a $\Xi(1530)\,\bar K$ molecule, where the binding mechanism is the coupled channel dynamics with the $\O
Externí odkaz:
http://arxiv.org/abs/1807.00718
Autor:
Valderrama, M. Pavón, Sánchez, M. Sánchez, Yang, C. -J., Long, Bingwei, Carbonell, Jaume, van Kolck, U.
Publikováno v:
Phys. Rev. C 95, 054001 (2017)
We analyze the power counting of the peripheral singlet partial waves in nucleon-nucleon scattering. In agreement with conventional wisdom, we find that pion exchanges are perturbative in the peripheral singlets. We quantify from the effective field
Externí odkaz:
http://arxiv.org/abs/1611.10175
We consider the $X(3872)$ resonance as a $J^{PC}=1^{++}$ $D\bar D^*$ hadronic molecule. According to heavy quark spin symmetry, there will exist a partner with quantum numbers $2^{++}$, $X_{2}$, which would be a $D^*\bar D^*$ loosely bound state. The
Externí odkaz:
http://arxiv.org/abs/1504.00861
We investigate heavy quark symmetries for heavy light meson-antimeson systems in a contact-range effective field theory. In the SU(3) light flavor limit, the leading order Lagrangian respecting heavy quark spin symmetry contains four independent coun
Externí odkaz:
http://arxiv.org/abs/1411.7828
We investigate heavy quark symmetries for heavy meson hadronic molecules, and explore the consequences of assuming the X(3872) and $Z_b(10610)$ as an isoscalar $D\bar D^*$ and an isovector $B\bar B^*$ hadronic molecules, respectively. The symmetry al
Externí odkaz:
http://arxiv.org/abs/1409.4390
Publikováno v:
Phys. Rev. Lett. 114, 082502 (2015)
We analyze the power counting of two-body currents in nuclear effective field theories (EFTs). We find that the existence of non-perturbative physics at low energies, which is manifest in the existence of the deuteron and the 1S0 NN virtual bound sta
Externí odkaz:
http://arxiv.org/abs/1407.0437
Autor:
Asier Echarri, Dácil M. Pavón, Sara Sánchez, María García-García, Enrique Calvo, Carla Huerta-López, Diana Velázquez-Carreras, Christine Viaris de Lesegno, Nicholas Ariotti, Ana Lázaro-Carrillo, Raffaele Strippoli, David De Sancho, Jorge Alegre-Cebollada, Christophe Lamaze, Robert G. Parton, Miguel A. Del Pozo
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-16 (2019)
Mechanical forces are sensed by cells and can alter plasma membrane properties, but biochemical changes underlying this are not clear. Here the authors show tension is sensed by c-Abl and FBP17, which couples changes in mechanical tension to remodell
Externí odkaz:
https://doaj.org/article/537e84a3f682496786a15fc617c6a1d4
In this work, we have used an Effective Field Theory (EFT) framework based on Heavy Quark Spin (HQSS), Heavy Flavour (HFS) and Heavy Antiquark-Diquark symmetries (HADS). Using a standard lagrangian for the heavy meson-heavy antimeson system, we fit t
Externí odkaz:
http://arxiv.org/abs/1309.3865
In this work, an Effective Field Theory (EFT) incorporating light SU(3)-flavour and heavy quark spin symmetry is used to describe charmed meson-antimeson bound states. At Lowest Order (LO), this means that only contact range interactions among the he
Externí odkaz:
http://arxiv.org/abs/1211.7004