In this paper we consider the production of top quark pairs close to threshold and compute the dependence on the Higgs boson mass to order αα s. This requires the evaluation of the matching coefficient of the vector current to two-loop level and the inclusion of Higgs mass dependent operators in the non-relativistic effective theory. For Higgs boson masses below 200 GeV moderate contributions t...

We show that the Sudakov factor from the resummation of double logarithms ln(s/k T ) contained in the distribution functions is responsible for the kT smearing mechanism employed in the next-to-leading-order QCD (αα 2 s) calculations of direct photon production. s is the center-of-mass energy, and kT the transverse momentum carried by a parton in a colliding hadron. This factor exhibits the app...

A palindrome is a string of the form αα', where α and α' are also strings and reverse to each other. The problem of the paper is defined as follows: given a string S of length n, find all palindromes occurring in the given string S. In the paper, we present an algorithm based on suffix trees to find palindromes. Our algorithm will find all maximum palindromes which are not contained in any othe...

The time dependence of atropisomer interconversion has limited the pursuit single drug candidates, even in circumstances where one presents favorable biological activity over another. Moderate energy barriers risk compromising stability. As a result, examples atropisomerically pure drugs current clinical use are rare. However, recent years, there been shift towards development single, stable ca...