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<div class="column"><p class=""><span style="font-size: 18.000000pt; font-family: 'TimesNewRomanPSMT'; color: rgb(18.000000%, 45.500000%, 71.000000%)" class="">"Hints for physics beyond the Standard Model in decays of beauty
quarks"
</span></p><p class=""><span style="font-size: 16.000000pt; font-family: 'TimesNewRomanPS'; font-weight: 700; color: rgb(14.100000%, 25.100000%, 38.000000%)" class="">Stefan Meinel
University of Arizona
</span></p><p class=""><span style="font-size: 12.000000pt; font-family: 'TimesNewRomanPS'; font-weight: 700" class="">Abstract</span><span style="font-size: 12.000000pt; font-family: 'TimesNewRomanPSMT'" class="">: Particle physics seeks to understand the laws governing the universe at the most fundamental
level. There are indications that our current best formulation of these laws, the Standard Model, is still
incomplete. A promising way of searching for physics beyond the Standard Model with particle
collider experiments is the precision study of processes in which quarks change from one flavor to
another. Such processes may receive observable quantum corrections from new elementary particles
that so far have escaped direct detection. Recent measurements of decays of B mesons, in which a
heavy beauty quark changes to a lighter flavor of quark, have revealed tantalizing deviations from
Standard-Model predictions, but the interpretation is still unclear. Complementary information on the
same underlying quark transitions can be obtained by studying decays of Lambda_b baryons instead of
B mesons. To interpret the experimental data, the contributions of the strong interaction need to be
calculated numerically using lattice quantum chromodynamics on supercomputers.</span></p><div class=""><br class=""></div><p class=""><span style="font-size: 12.000000pt; font-family: 'TimesNewRomanPSMT'" class=""> </span><span style="font-size: 11pt; font-family: Calibri;" class=""> </span><span style="font-size: 11pt; font-family: Calibri;" class=""> </span></p></div></div></div></body></html>