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Title: Unitary limit of two-nucleon interactions in strong magnetic fields
Author: Detmold, William
Orginos, Kostas
Parreño García, Assumpta
Savage, Martin J.
Tiburzi, Brian C.
Beane, Silas R.
Chang, Emmanuel
Keywords: Camps magnètics
Col·lisions d'ions pesats
Magnetic fields
Heavy ion collision
Issue Date: 14-Mar-2016
Publisher: American Physical Society
Abstract: Two-nucleon systems are shown to exhibit large scattering lengths in strong magnetic fields at unphysical quark masses, and the trends toward the physical values indicate that such features may exist in nature. Lattice QCD calculations of the energies of one and two nucleons systems are performed at pion masses of m π ∼ 450 and 806 MeV in uniform, time-independent magnetic fields of strength | B | ∼ 10 19 - 10 20     G to determine the response of these hadronic systems to large magnetic fields. Fields of this strength may exist inside magnetars and in peripheral relativistic heavy ion collisions, and the unitary behavior at large scattering lengths may have important consequences for these systems.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2016, vol. 116, num. 11, p. 112301-1-112301-5
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Física Quàntica i Astrofísica)

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