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SUMMARY:Semileptonic decays of charm mesons into orbitally and radially ex
 cited strange and light mesons
DTSTART;VALUE=DATE-TIME:20241025T101500Z
DTEND;VALUE=DATE-TIME:20241025T103000Z
DTSTAMP;VALUE=DATE-TIME:20260517T033651Z
UID:indico-contribution-4313@cern.ch
DESCRIPTION:Speakers: Ivan Sukhanov (Federal Research Center "Computer Sci
 ence and Control"\, Russian Academy of Sciences\; Faculty of Physics\, M.V
 .Lomonosov Moscow State University)\nThe form factors parameterizing weak 
 D and Ds transitions to orbitally and radially excited light mesons are ca
 lculated in the framework of the relativistic quark model based on the qua
 sipotential approach. Special attention is paid to the systematic account 
 of the relativistic effects including transformation of the final meson wa
 ve function from rest to moving reference frame and contributions of inter
 mediate negative-energy states. Form factors are expressed through the ove
 rlap integrals of the meson wave functions\, which are taken from previous
  studies of meson spectroscopy. The form factors are calculated in the who
 le range of the transferred momentum q2. A convenient parameterization of 
 form factors is given\, which accurately reproduces numerical results. On 
 the basis of these form factors and helicity formalism\, differential and 
 total semileptonic decay rates of D and Ds mesons to excited strange and l
 ight mesons as well as different asymmetries and polarization parameters a
 re calculated. A detailed comparison of obtained results with other theore
 tical calculations and available experimental data is given.\n\nhttps://in
 dico.particle.mephi.ru/event/436/contributions/4313/
LOCATION: Moskvorechye 2
URL:https://indico.particle.mephi.ru/event/436/contributions/4313/
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