Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Kievsky Alejandro"'
Publikováno v:
EPJ Web of Conferences, Vol 290, p 10008 (2023)
The deuteron, the only two-nucleon bound state, has a shallow character: its binding energy is strictly related to zero-energy parameters, the triplet scattering length 3anp and triplet effective range 3rnp. This fact places the deuteron inside the u
Externí odkaz:
https://doaj.org/article/34b590c16f6243eeab59881b4e96f1ef
Autor:
Gattobigio, Mario, Kievsky, Alejandro
We investigate the properties of the excited state of $^4\mathrm{He}$, $^4\mathrm{He}^*$, within the framework of Efimov physics and its connection to the unitary point of the nuclear interaction. We explore two different approaches to track the traj
Externí odkaz:
http://arxiv.org/abs/2305.16814
We study bosonic systems in the regime in which the two-body system has a shallow bound state or, equivalently, a large value of the two-body scattering length. Using the effective field theory framework as a guide, we construct a series of potential
Externí odkaz:
http://arxiv.org/abs/2206.06265
Autor:
Tews, Ingo, Davoudi, Zohreh, Ekström, Andreas, Holt, Jason D., Becker, Kevin, Briceño, Raúl, Dean, David J., Detmold, William, Drischler, Christian, Duguet, Thomas, Epelbaum, Evgeny, Gasparyan, Ashot, Gegelia, Jambul, Green, Jeremy R., Grießhammer, Harald W., Hanlon, Andrew D., Heinz, Matthias, Hergert, Heiko, Hoferichter, Martin, Illa, Marc, Kekejian, David, Kievsky, Alejandro, König, Sebastian, Krebs, Hermann, Launey, Kristina D., Lee, Dean, Navrátil, Petr, Nicholson, Amy, Parreño, Assumpta, Phillips, Daniel R., Płoszajczak, Marek, Ren, Xiu-Lei, Richardson, Thomas R., Robin, Caroline, Sargsyan, Grigor H., Savage, Martin, Schindler, Matthias R., Shanahan, Phiala E., Springer, Roxanne P., Tichai, Alexander, van Kolck, Ubirajara, Wagman, Michael L., Walker-Loud, André, Yang, Chieh-Jen, Zhang, Xilin
Publikováno v:
Few-Body Systems 63, 67 (2022)
This is a collection of perspective pieces contributed by the participants of the Institute of Nuclear Theory's Program on Nuclear Physics for Precision Nuclear Physics which was held virtually from April 19 to May 7, 2021. The collection represents
Externí odkaz:
http://arxiv.org/abs/2202.01105
Publikováno v:
EPJ Web of Conferences, Vol 113, p 04009 (2016)
We report on our progress in the inclusion of the subleading 3N contact operators for the elastic p − d scattering below the deuteron break-up. We find that, with a nuclear interaction consisting of the AV18 2N potential, supplemented by the leadin
Externí odkaz:
https://doaj.org/article/845c80a5b20b4bea9c18be11477d5c11
Publikováno v:
Phys. Rev. C 103, 024004 (2021)
This work presents further analysis of the three- and four-neutron systems in the low energy regime using adiabatic hyperspherical methods. In our previous Phys. Rev. Lett. article (Phys. Rev. Lett. 125, 052501 (2020)), the low-energy behavior of the
Externí odkaz:
http://arxiv.org/abs/2011.11687
Publikováno v:
Phys. Rev. Lett. 125, 052501 (2020)
The low energy systems of three or four neutrons are treated within the adiabatic hyperspherical framework, yielding an understanding of the low energy quantum states in terms of an adiabatic potential energy curve. The dominant low energy potential
Externí odkaz:
http://arxiv.org/abs/2005.04714
Publikováno v:
Phys. Rev. C 100, 034004 (2019)
The large values of the singlet and triplet scattering lengths locate the two-nucleon system close to the unitary limit, the limit in which these two values diverge. As a consequence, the system shows a continuous scale invariance which strongly cons
Externí odkaz:
http://arxiv.org/abs/1903.08900
Using two-nucleon and three-nucleon interactions derived in the framework of chiral perturbation theory (ChPT) with and without the explicit $\Delta$ isobar contributions, we calculate the energy per particle of symmetric nuclear matter and pure neut
Externí odkaz:
http://arxiv.org/abs/1609.00649
Autor:
Piarulli, Maria, Girlanda, Luca, Schiavilla, Rocco, Kievsky, Alejandro, Lovato, Alessandro, Marcucci, Laura E., Pieper, Steven C., Viviani, Michele, Wiringa, Robert B.
Publikováno v:
Phys. Rev. C 94, 054007 (2016)
We present fully local versions of the minimally non-local nucleon-nucleon potentials constructed in a previous paper [M.\ Piarulli {\it et al.}, Phys.\ Rev.\ C {\bf 91}, 024003 (2015)], and use them in hypersperical-harmonics and quantum Monte Carlo
Externí odkaz:
http://arxiv.org/abs/1606.06335