Transverse Momentum Spectra at Threshold for Groomed Heavy Quark Jets

Understand

We present the transverse momentum spectrum for a heavy hadron at threshold in a groomed jet initiated by a heavy quark.

• The cross section is doubly differential in the energy fraction of an identified heavy hadron in the jet and its transverse momentum measured with respect to the groomed (recoil free) jet axis.
• The grooming is implemented using a soft-drop grooming algorithm and helps us in mitigating the effects of Non-Global logarithms and pile up.
• For the particular case of a $B$ meson, we identify two distinct regimes of the transverse momentum spectrum and develop an EFT within the formalisms of Soft Collineat Effective Theory (SCET) and Heavy Quark Effective Theory (HQET) for each of these regions.