Zobrazeno 1 - 10
of 276
pro vyhledávání: '"Beenakker, W."'
The Landau-Yang theorem, forbidding transition amplitudes between a massive spin-1 particle and two photons, is widely assumed to apply to other massless spin-1 particles. We show that this is not true in Standard-Model QCD, so that for instance anti
Externí odkaz:
http://arxiv.org/abs/1508.07115
Autor:
Beenakker, W., Janssen, T., Lepoeter, S., Krämer, M., Kulesza, A., Laenen, E., Niessen, I., Thewes, S., Van Daal, T.
We present the hard matching coefficients for squark and gluino hadroproduction. The hard matching coefficients follow from the next-to-leading order cross section near threshold and are an important ingredient for performing threshold resummation at
Externí odkaz:
http://arxiv.org/abs/1304.6354
We consider the resummation of soft gluon emission for squark-antisquark pair-production at the LHC at next-to-next-to-leading-logarithmic (NNLL) accuracy in the framework of the minimal supersymmetric standard model. We present the analytical ingred
Externí odkaz:
http://arxiv.org/abs/1110.2446
We review the theoretical status of squark and gluino hadroproduction and provide numerical predictions for all squark and gluino pair-production processes at the Tevatron and at the LHC, with a particular emphasis on proton-proton collisions at 7 Te
Externí odkaz:
http://arxiv.org/abs/1105.1110
We report on the study of soft gluon effects in the production of squarks and gluinos at hadron colliders. Close to production threshold, the emission of soft gluon results in the appearence of large logarithmic corrections in the theoretical express
Externí odkaz:
http://arxiv.org/abs/1001.3123
Autor:
CLIC Physics Working Group, Accomando, E., Aranda, A., Ateser, E., Balazs, C., Bardin, D., Barklow, T., Battaglia, M., Beenakker, W., Berge, S., Blair, G., Boos, E., Boudjema, F., Braun, H., Burikham, P., Burkhardt, H., Cacciari, M., Cakir, O., Ciftci, A., Ciftci, R., Cox, B., Da Via, C., Datta, A., De Curtis, S., De Roeck, A., Diehl, M., Djouadi, A., Dominici, D., Ellis, J., Ferrari, A., Forshaw, J., Frey, A., Giudice, G., Godbole, R., Gruwe, M., Guignard, G., Han, T., Heinemeyer, S., Heusch, C., Hewett, J., Jadach, S., Jarron, P., Kenney, C., Kirca, Z., Klasen, M., Kong, K., Kramer, M., Kraml, S., Landsberg, G., Diaz-Cruz, J. Lorenzo, Matchev, K., Moortgat-Pick, G., Muhlleitner, M., Nachtmann, O., Nagel, F., Olive, K., Pancheri, G., Pape, L., Parker, S., Piccolo, M., Porod, W., Recepoglu, E., Richardson, P., Riemann, T., Rizzo, T., Ronan, M., Royon, C., Salmi, L., Schulte, D., Settles, R., Sjostrand, T., Spira, M., Sultansoy, S., Telnov, V., Treille, D., Velasco, M., Verzegnassi, C., Weiglein, G., Weng, J., Wengler, T., Werthenbach, A., Wilson, G., Wilson, I., Zimmermann, F.
This report summarizes a study of the physics potential of the CLIC e+e- linear collider operating at centre-of-mass energies from 1 TeV to 5 TeV with luminosity of the order of 10^35 cm^-2 s^-1. First, the CLIC collider complex is surveyed, with emp
Externí odkaz:
http://arxiv.org/abs/hep-ph/0412251
Publikováno v:
Nucl.Phys. B667 (2003) 359-393
We present a study of the effective action approach to incorporate higher-order effects in e^+e^- -> n fermions. In its minimal version, the effective action approach is found to exhibit problems with unitarity and high-energy behaviour. We identify
Externí odkaz:
http://arxiv.org/abs/hep-ph/0303105
Publikováno v:
Nucl.Phys. B653 (2003) 151-203
The Higgs boson H of the Standard Model can be searched for in the channels p pbar / pp -> t tbar H + X at the Tevatron and the LHC. The cross sections for these processes and the final-state distributions of the Higgs boson and top quarks are presen
Externí odkaz:
http://arxiv.org/abs/hep-ph/0211352
Autor:
Beenakker, W., Werthenbach, A.
Publikováno v:
Nucl.Phys. B630 (2002) 3-54
We calculate the virtual electroweak Sudakov (double) logarithms at one- and two-loop level for arbitrary on-shell/on-resonance particles in the Standard Model. The associated Sudakov form factors apply in a universal way to arbitrary non-mass-suppre
Externí odkaz:
http://arxiv.org/abs/hep-ph/0112030
Publikováno v:
Phys.Rev.Lett. 87 (2001) 201805
Higgs bosons can be searched for in the channels $p\bar p/pp\to t\bar tH+X$ at the Tevatron and the LHC. We have calculated the QCD corrections to these processes in the Standard Model at next-to-leading order. The higher-order corrections reduce the
Externí odkaz:
http://arxiv.org/abs/hep-ph/0107081