title: Unitary Limit of Two-Nucleon Interactions in Strong Magnetic Fields.
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.
authors.affiliation: Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
authors.forename: William
authors.initials: W
authors.lastname: Detmold
authors.affiliation: Department of Physics, College of William and Mary, Williamsburg, Virginia 23187-8795, USA.|Jefferson Laboratory, 12000 Jefferson Avenue, Newport News, Virginia 23606, USA.
authors.forename: Kostas
authors.initials: K
authors.lastname: Orginos
authors.affiliation: Department d'Estructura i Constituents de la Matèria. Institut de Ciències del Cosmos (ICC), Universitat de Barcelona, Martí Franquès 1 E08028, Spain.
authors.forename: Assumpta
authors.initials: A
authors.lastname: Parreño
authors.affiliation: Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550, USA.
authors.forename: Martin J
authors.initials: MJ
authors.lastname: Savage
authors.affiliation: Department of Physics, The City College of New York, New York, New York 10031, USA.|Graduate School and University Center, The City University of New York, New York, New York 10016, USA.|RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA.
authors.forename: Brian C
authors.initials: BC
authors.lastname: Tiburzi
authors.affiliation: Department of Physics, University of Washington, Box 351560, Seattle, Washington 98195, USA.
authors.forename: Silas R
authors.initials: SR
authors.lastname: Beane
authors.affiliation: Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550, USA.
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Chang