Left-handedWbosons at the LHC

NNLOPS accurate Drell-Yan production

“…11 For qq initiated production the relation is exact to all orders. For qg initiated production it is violated at the NLO level [55]. This is independent of the frame.…”

“…Recently both ATLAS [53] and CMS [54] have published results on the polarization of the W boson at 7 TeV confirming the Standard Model prediction, that W bosons are mostly left-handed in pp collisions at large transverse momenta [55]. Knowledge about the W boson polarization is important, as it provides a discriminant in searches for new physics.…”

“…We first very briefly review how to measure the polarization in terms of angular coefficients but refer the reader to the literature for a complete description of the topic [55][56][57][58][59][60][61][62]. Here we will follow the derivation of [55]. We then continue to compare ATLAS data [53] JHEP09 (2014) where the polar angle θ * and the azimuthal angle φ * are defined in some particular rest frame of the dilepton system.…”

Susy theories and QCD: numerical approaches

“…This kind of work, is at the cross-roads of theory and phenomenology has led to many recent insights, on the more formal side [146,147,21,29,136,148] as well as of more phenomenological nature [110].…”

“…Beyond this, matrix elements are objects of fundamental theoretical interest; new physics effects observable at high energy colliders may originate in properties of matrix elements (see e.g. [110]). …”