% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Elhatisari:910663,
      author       = {Elhatisari, Serdar and Lähde, Timo A. and Lee, Dean and
                      Meißner, Ulf-G. and Vonk, Thomas},
      title        = {{A}lpha-alpha scattering in the {M}ultiverse},
      journal      = {Journal of high energy physics},
      volume       = {2022},
      number       = {2},
      issn         = {1029-8479},
      address      = {[Trieste]},
      publisher    = {SISSA},
      reportid     = {FZJ-2022-04036},
      pages        = {1},
      year         = {2022},
      note         = {We gratefully acknowledge funding by the Deutsche
                      Forschungsgemeinschaft (DFG, German Research Foundation) and
                      the NSFC through the funds provided to the Sino-German
                      Collaborative Research Center TRR110 “Symmetries and the
                      Emergence of Structure in QCD” (DFG Project ID 196253076 -
                      TRR 110, NSFC Grant No. 12070131001), the Chinese Academy of
                      Sciences (CAS) President’s International Fellowship
                      Initiative (PIFI) (Grant No. 2018DM0034), Volkswagen
                      Stiftung (Grant No. 93562), the European Research Council
                      (ERC) under the European Union’s Horizon 2020 research and
                      innovation programme (grant agreement No. 101018170), the
                      U.S. Department of Energy (DE-SC0013365 and DE-SC0021152)
                      and the Nuclear Computational Low-Energy Initiative (NUCLEI)
                      SciDAC-4 project (DE-SC0018083) and the Scientific and
                      Technological Research Council of Turkey (TUBITAK project
                      no. 120F341)},
      abstract     = {We investigate the phase shifts of low-energy alpha-alpha
                      scattering under variations of the fundamental parameters of
                      the Standard Model, namely the light quark mass, the
                      electromagnetic fine-structure constant as well as the QCD
                      theta-angle. As a first step, we recalculate alpha-alpha
                      scattering in our Universe utilizing various improvements in
                      the adiabatic projection method, which leads to an improved,
                      parameter-free prediction of the S- and D-wave phase shifts
                      for laboratory energies below 10 MeV. We find that positive
                      shifts in the pion mass have a small effect on the S-wave
                      phase shift, whereas lowering the pion mass adds some
                      repulsion in the two-alpha system. The effect on the D-wave
                      phase shift turns out to be more pronounced as signaled by
                      the D-wave resonance parameters. Variations of the
                      fine-structure constant have almost no effect on the
                      low-energy alpha-alpha phase shifts. We further show that
                      up-to-and-including next-to-leading order in the chiral
                      expansion, variations of these phase shifts with respect to
                      the QCD theta-angle can be expressed in terms of the
                      theta-dependent pion mass.},
      cin          = {IAS-4},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-4-20090406},
      pnm          = {5111 - Domain-Specific Simulation Data Life Cycle Labs
                      (SDLs) and Research Groups (POF4-511) / DFG project
                      196253076 - TRR 110: Symmetrien und Strukturbildung in der
                      Quantenchromodynamik (196253076) / Nuclear Lattice
                      Simulations $(jara0015_20200501)$},
      pid          = {G:(DE-HGF)POF4-5111 / G:(GEPRIS)196253076 /
                      $G:(DE-Juel1)jara0015_20200501$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000750848500004},
      doi          = {10.1007/JHEP02(2022)001},
      url          = {https://juser.fz-juelich.de/record/910663},
}