Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Kom, C. H."'
We present a comprehensive study of high-energy double logarithms in inclusive DIS. They appear parametrically as alpha_s^n ln^{2n-k} x at the n-th order in perturbation theory in the splitting functions for the parton evolution and the coefficient f
Externí odkaz:
http://arxiv.org/abs/2202.10362
Autor:
Vogt, A., Kom, C. H., Presti, N. A. Lo, Soar, G., Almasy, A. A., Moch, S., Vermaseren, J. A. M., Yeats, K.
Over the past few years considerable progress has been made on the resummation of double-logarithmically enhanced threshold (large-x) and high-energy (small-x) higher-order contributions to the splitting functions for parton and fragmentation distrib
Externí odkaz:
http://arxiv.org/abs/1212.2932
We study the splitting functions for the evolution of fragmentation distributions and the coefficient functions for single-hadron production in semi-inclusive electron-positron annihilation in massless perturbative QCD for small values of the momentu
Externí odkaz:
http://arxiv.org/abs/1207.5631
Publikováno v:
Phys.Rev.Lett. 108 (2012) 181805
Motivated by evidence for the existence of dark matter, many new physics models predict the pair production of new particles, followed by the decays into two invisible particles, leading to a momentum imbalance in the visible system. For the cases wh
Externí odkaz:
http://arxiv.org/abs/1202.0047
Autor:
Bartalini, P., Berger, E. L., Blok, B., Calucci, G., Corke, R., Diehl, M., Dokshitzer, Yu., Fano, L., Frankfurt, L., Gaunt, J. R., Gieseke, S., Gustafson, G., Kar, D., Kom, C. -H., Kulesza, A., Maina, E., Nagy, Z., Roehr, Ch., Siodmok, A., Schmelling, M., Stirling, W. J., Strikman, M., Treleani, D.
We review the recent progress in the theoretical description and experimental observation of multiple parton interactions. Subjects covered include experimental measurements of minimum bias interactions and of the underlying event, models of soft phy
Externí odkaz:
http://arxiv.org/abs/1111.0469
We discuss how the mass of new physics particles involved in a pair of short decay chains leading to two invisible particles, for example slepton pair production, followed by the decay into two leptons and two neutralinos, may be measured in central
Externí odkaz:
http://arxiv.org/abs/1110.4320
Autor:
Kom, C. H., Rodejohann, Werner
Publikováno v:
Phys.Rev.D85:015013,2012
If neutrinoless double beta decay is observed, it will be important to understand the mechanism(s) behind this process. Using a minimal supersymmetric extension to the Standard Model in association with a lepton number violating coupling as an exampl
Externí odkaz:
http://arxiv.org/abs/1110.3220
We discuss the prospects of observing double parton scattering (DPS) processes with purely leptonic final states at the LHC. We first study same-sign W pair production, which is particularly suited for studying momentum and valence number conservatio
Externí odkaz:
http://arxiv.org/abs/1110.1174
Publikováno v:
Comput.Phys.Commun. 183 (2012) 785-793
The program SOFTSUSY can calculate tree-level neutrino masses in the R-parity violating minimal supersymmetric standard model (MSSM) with real couplings. At tree-level, only one neutrino acquires a mass, in contradiction with neutrino oscillation dat
Externí odkaz:
http://arxiv.org/abs/1109.3735
We study the prospects for observing double parton scattering through four-muon final states, forming two opposite-sign muon pairs, in the LHCb experiment in pp collisions at 14 TeV centre of mass energy. We consider two special cases, namely double
Externí odkaz:
http://arxiv.org/abs/1109.0309