Speaker
Dr
Varun Vaidya
(Los Alamos National Lab)
Description
We study the transverse momentum spectra of gauge bosons ( Z, $\gamma^*$, Higgs) in PP collisions in the regime of low transverse momentum. We develop a scheme of resummation allowing us to choose the factorization scale for virtuality in momentum space which is then applied to obtain the transverse momentum spectra for the Drell-Yan and Higgs at NNLL accuracy. All the schemes of resummation developed so far in literature implement the resummation numerically. Using our scheme, we obtain for the first time, an analytic formula for these resummed cross sections at each order of resummation. Finally, a comparison with other resummation schemes is presented along with a discussion of possible non-perturbative effects.
Primary author
Dr
Varun Vaidya
(Los Alamos National Lab)
Co-authors
Dr
Daekyoung Kang
(Los Alamos Nationa Lab)
Dr
Christopher Lee
(Los Alamos National Lab)
