266 research outputs found
Lessons from charm dynamics
We shall proceed to discuss the significance of charm dynamics in an era when
the Standard Model is well established in its degrees of freedom but little
understood in quite a few of its different parts. The study of decays and
asymmetries in the decays of mesons with charm quantum numbers provide us
possible insights into the yet uncharted dynamics of the Standard Model at the
GeV scale. We will discuss some interesting channels with hadrons and/or
leptons in the final state, the shortcomings of theoretical structures
currently advocated and future experimental prospects.Comment: Proceedings of XII IFAE, Cittadella Universitaria di Monserrato,
Cagliari. 3rd - 5th April 2013. 5 page
On Breaking through Final State Interactions and CP Asymmetries in Decays
We analyse decays to two pseudoscalars assuming the dominant
source of breaking lies in final state interactions. We
obtain an excellent agreement with experimental data and are able to predict CP
violation in several channels based on current data on branching ratios and
. We also make predictions for and the
branching fraction for the decay .Comment: 21 pages. Updated with the 2019 measurement of from LHC
Phenomenological and Experimental Developments in Charm Physics: The WG7 Report from CKM 2016
We present an overview of recent developments in charm physics reported in
the Working~Group~7 meetings of the CKM 2016 workshop. Progresses in
experimental analysis and techniques were reported by LHCb, Belle, BABAR and
BESIII along with projections for the future. Developments were also reported
in the phenomenological extraction of both direct and indirect CP violation
from data in two-, three- and four-body hadronic decays of the mesonic
system.Comment: 12 pages. WG7 report for CKM 2016. PoS(CKM2016)02
Heavy Higgs Searches: Flavour Matters
We point out that the stringent lower bounds on the masses of additional
electrically neutral and charged Higgs bosons crucially depend on the flavour
structure of their Yukawa interactions. We show that these bounds can easily be
evaded by the introduction of flavour-changing neutral currents in the Higgs
sector. As an illustration, we study the phenomenology of a two Higgs doublet
model with a Yukawa texture singling out the third family of quarks and
leptons. We combine constraints from low-energy flavour physics measurements,
LHC measurements of the 125 GeV Higgs boson rates, and LHC searches for new
heavy Higgs bosons. We propose novel LHC searches that could be performed in
the coming years to unravel the existence of these new Higgs bosons.Comment: 41 pages, 11 figures and 4 tables (v2: References added. Comment on
associated production with a top quark added. Matched published version.
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