### Guillaume Hupin

Lawrence Livermore National Laboratory, University of Notre Dame, IN (visiting) and Argonne National Laboratory (visiting)
###
From the Chiral Nuclear Interaction to *Ab Initio* Description of Light-ion Fusion Reactions

Chiral forces offer a alternative venue for accurate calculations bridg-
ing the gap with the underlying theory of QCD. Their predictive
power has to be tested in *ab initio* calculations. The *ab initio* No-
Core Shell Model with Continuum (NCSMC) [1] is capable of address-
ing both structural and reaction properties [2,3] of light-nuclei. This
method can accurately describe reaction systems of more than five nu-
cleons extending the range of *ab initio* reaction applications. We have
developed the NCSMC formalism for the description of nucleon- and
deuteron-nucleus scattering including three-nucleon forces. We will
present results for the N-^{4}He and d-^{4}He scattering processes when ac-
counting for the chiral two- plus three-nucleon interaction versus the
chiral two-nucleon interaction, our progress to describe the α + n + n
three-cluster dynamics and initial calculations of the d(t,α)n fusion
including the three-nucleon forces within NCSMC. This work paves
the way for modeling of light-ion fusion reactions with realistic nuclear
forces, that are important for understanding nuclear astrophysics processes.^{a}

[1] S. Baroni, P. Navrátil and S. Quaglioni Phys. Rev. Lett. 110,
022505 (2013); Phys. Rev. C 87, 034326 (2013).

[2] S. Quaglioni and P. Navrátil, Phys. Rev. Lett. 101, 092501
(2008); Phys. Rev. C 79, 044606 (2009).

[3] G. Hupin, J. Langhammer, P. Navrátil, S. Quaglioni, A. Calci
and R. Roth, Phys. Rev. C 88, 054622 (2013).

^{a}Prepared in part by LLNL under Contract DE-AC52-07NA27344. Support
from the U.S. DOE/SC/NP (Work Proposal No. SCW1158), the NSERC grant
401945-2011 is acknowledged.

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