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91 papers · 1 filter
Nucleon-nucleon scattering up to next-to-leading order in manifestly Lorentz-invariant chiral effective field theory: low phases and the deuteron
Xiu-Lei Ren, E. Epelbaum, J. Gegelia
Recently the nucleon-nucleon interaction derived using time-ordered perturbation theory in manifestly Lorentz-invariant chiral effective field theory was shown to yield promising r…
Perturbation theory for a systematic account of the bound-state motion
Alexander N. Kvinikhidze, Hagop Sazdjian, Boris Blankleider
We derive a perturbation theory (PT) for the Lorentz boost operator in the space of two-nucleon wave functions. The latter is expressed in terms of the nucleon-nucleon () poten…
Ab initio study of the beryllium isotopes Be to Be
Shihang Shen, Serdar Elhatisari, Dean Lee +2
We present a systematic ab initio study of the low-lying states in beryllium isotopes from 7Be to 12Be using nuclear lattice effective field theory with the N3LO interaction. Our c…
The triton lifetime from nuclear lattice effective field theory
Serdar Elhatisari, Fabian Hildenbrand, Ulf-G. Meißner
In this work, we present a calculation of the triton -decay lifetime using Nuclear Lattice Effective Field Theory (NLEFT) at next-to-next-to-next-to-leading order in the chiral…
Global Data-Driven Determination of Baryon Transition Form Factors
Yu-Fei Wang, Michael Döring, Jackson Hergenrather +5
Hadronic resonances emerge from strong interactions encoding the dynamics of quarks and gluons. The structure of these resonances can be probed by virtual photons parameterized in…
Floating block method for quantum Monte Carlo simulations
Avik Sarkar, Dean Lee, Ulf-G. Meißner
Quantum Monte Carlo simulations are powerful and versatile tools for the quantum many-body problem. In addition to the usual calculations of energies and eigenstate observables, qu…