Zobrazeno 1 - 10
of 360
pro vyhledávání: '"Bernreuther, W."'
We study the potential of future lepton colliders to probe violation of the CP symmetry in the top quark sector. In certain extensions of the Standard Model, such as the two-Higgs-doublet model (2HDM), sizeable anomalous top quark dipole moments can
Externí odkaz:
http://arxiv.org/abs/1710.06737
Publikováno v:
Phys. Rev. D 93, 034032 (2016)
We investigate the production of heavy, neutral Higgs boson resonances and their decays to top-quark top-antiquark ($t\bar{t}$) pairs at the Large Hadron Collider (LHC) at next-to-leading order (NLO) in the strong coupling of quantum chromodynamics (
Externí odkaz:
http://arxiv.org/abs/1511.05584
Autor:
Eversmann, D., Hejny, V., Hinder, F., Kacharava, A., Pretz, J., Rathmann, F., Rosenthal, M., Trinkel, F., Andrianov, S., Augustyniak, W., Bagdasarian, Z., Bai, M., Bernreuther, W., Bertelli, S., Berz, M., Bsaisou, J., Chekmenev, S., Chiladze, D., Ciullo, G., Contalbrigo, M., de Vries, J., Dymov, S., Engels, R., Esser, F. M., Felden, O., Gaisser, M., Gebel, R., Glückler, H., Goldenbaum, F., Grigoryev, K., Grzonka, D., Guidoboni, G., Hanhart, C., Heberling, D., Hempelmann, N., Hetzel, J., Hipple, R., Hölscher, D., Ivanov, A., Kamerdzhiev, V., Kamys, B., Keshelashvili, I., Khoukaz, A., Koop, I., Krause, H-J., Krewald, S., Kulikov, A., Lehrach, A., Lenisa, P., Lomidze, N., Lorentz, B., Maanen, P., Macharashvili, G., Magiera, A., Maier, R., Makino, K., Marianski, B., Mchedlishvili, D., Meißner, Ulf-G., Mey, S., Nass, A., Natour, G., Nikolaev, N., Nioradze, M., Nogga, A., Nowakowski, K., Pesce, A., Prasuhn, D., Ritman, J., Rudy, Z., Saleev, A., Semertzidis, Y., Senichev, Y., Shmakova, V., Silenko, A., Slim, J., Soltner, H., Stahl, A., Stassen, R., Statera, M., Stephenson, E., Stockhorst, H., Straatmann, H., Ströher, H., Tabidze, M., Talman, R., Engblom, P. Thörngren, Trzcinski, A., Uzikov, Yu., Valdau, Yu., Valetov, E., Vassiliev, A., Weidemann, C., Wilkin, C., Wirzba, A., Wronska, A., Wüstner, P., Zakrzewska, M., Zaplatin, E., Zupranski, P., Zyuzin, D.
A new method to determine the spin tune is described and tested. In an ideal planar magnetic ring, the spin tune - defined as the number of spin precessions per turn - is given by $\nu_s = \gamma G$ (gamma is the Lorentz factor, $G$ the magnetic anom
Externí odkaz:
http://arxiv.org/abs/1504.00635
Autor:
Dekens, W., de Vries, J., Bsaisou, J., Bernreuther, W., Hanhart, C., Meißner, Ulf-G., Nogga, A., Wirzba, A.
Publikováno v:
JHEP 07 (2014) 069
We show that the proposed measurements of the electric dipole moments of light nuclei in storage rings would put strong constraints on models of flavor-diagonal CP violation. Our analysis is exemplified by a comparison of the Standard Model including
Externí odkaz:
http://arxiv.org/abs/1404.6082
We compute the differential and total rate of the semileptonic decay of polarized top-quarks $t\to \ell \nu_\ell + b{\rm jet} + {\rm jet}$ at next-to-leading order (NLO) in the QCD coupling with an off-shell intermediate $W$ boson. We present several
Externí odkaz:
http://arxiv.org/abs/1401.5930
We compute, for top quark pair production at the Tevatron and the Large Hadron Collider, the collider-independent forward-backward asymmetries defined in [1] in the standard model at next-to-leading order in QCD, including also electromagnetic and we
Externí odkaz:
http://arxiv.org/abs/1209.6352
Publikováno v:
Phys. Rev. D.84, 116003 (2011)
We investigate how the CP quantum numbers of a neutral Higgs boson or spin-zero resonance, produced at the CERN Large Hadron Collider, can be determined in its tau-pair decay mode. We use a method developed in an earlier paper based on the distributi
Externí odkaz:
http://arxiv.org/abs/1108.0670
Autor:
Kraml, S., Accomando, E., Akeroyd, A. G., Akhmetzyanova, E., Albert, J., Alves, A., Amapane, N., Aoki, M., Azuelos, G., Baffioni, S., Ballestrero, A., Barger, V., Bartl, A., Bechtle, P., Belanger, G., Belhouari, A., Bellan, R., Belyaev, A., Benes, P., Benslama, K., Bernreuther, W., Besancon, M., Bevilacqua, G., Beyer, M., Bluj, M., Bolognesi, S., Boonekamp, M., Borzumati, F., Boudjema, F., Brandenburg, A., Brauner, T., Buszello, C. P., Butterworth, J. M., Carena, M., Cavalli, D., Cerminara, G., Choi, S. Y., Clerbaux, B., Collard, C., Conley, J. A., Deandrea, A., De Curtis, S., Dermisek, R., De Roeck, A., Dewhirst, G., Diaz, M. A., Diaz-Cruz, J. L., Dietrich, D. D., Dolgopolov, M., Dominici, D., Dubinin, M., Eboli, O., Ellis, J., Evans, N., Fano, L., Ferland, J., Ferrag, S., Fitzgerald, S. P., Fraas, H., Franke, F., Gennai, S., Ginzburg, I. F., Godbole, R. M., Gregoire, T., Grenier, G., Grojean, C., Gudnason, S. B., Gunion, J. F., Haber, H. E., Hahn, T., Han, T., Hankele, V., Hays, C., Heinemeyer, S., Hesselbach, S., Hewett, J. L., Hidaka, K., Hirsch, M., Hollik, W., Hooper, D., Hosek, J., Hubisz, J., Hugonie, C., Kalinowski, J., Kanemura, S., Kashkan, V., Kernreiter, T., Khater, W., Khoze, V. A., Kilian, W., King, S. F., Kittel, O., Klamke, G., Kneur, J. L., Kouvaris, C., Krawczyk, M., Krstonosic, P., Kyriakis, A., Langacker, P., Le, M. P., Lee, H. -S., Lee, J. S., Lemaire, M. C., Liao, Y., Lillie, B., Litvin, V., Logan, H. E., McElrath, B., Mahmoud, T., Maina, E., Mariotti, C., Marquard, P., Martin, A. D., Mazumdar, K., Miller, D. J., Mine, P., Moenig, K., Moortgat-Pick, G., Moretti, S., Muhlleitner, M. M., Munir, S., Nevzorov, R., Newman, H., Niezurawski, P., Nikitenko, A., Noriega-Papaqui, R., Okada, Y., Osland, P., Pilaftsis, A., Porod, W., Przysiezniak, H., Pukhov, A., Rainwater, D., Raspereza, A., Reuter, J., Riemann, S., Rindani, S., Rizzo, T. G., Ros, E., Rosado, A., Rousseau, D., Roy, D. P., Ryskin, M. G., Rzehak, H., Sannino, F., Schmidt, E., Schroder, H., Schumacher, M., Semenov, A., Senaha, E., Shaughnessy, G., Singh, R. K., Terning, J., Vacavant, L., Velasco, M., del Moral, A. Villanova, von der Pahlen, F., Weiglein, G., Williams, J., Williams, K., Zarnecki, A. F., Zeppenfeld, D., Zerwas, D., Zerwas, P. M., Zerwekh, A. R., Ziethe, J.
There are many possibilities for new physics beyond the Standard Model that feature non-standard Higgs sectors. These may introduce new sources of CP violation, and there may be mixing between multiple Higgs bosons or other new scalar bosons. Alterna
Externí odkaz:
http://arxiv.org/abs/hep-ph/0608079
Autor:
Bernreuther, W., Bonciani, R., Gehrmann, T., Leineweber, R. Heinesch T., Mastrolia, P., Remiddi, E.
Publikováno v:
Nucl.Phys.B750:83-107,2006
Forward-backward asymmetries, $A_{FB}^Q$, are important observables for the determination of the neutral-current couplings of heavy quarks in inclusive heavy quark production, $e^+ e^- \to \gamma^*, Z^* \to Q +X$. In view of the measurement perspecti
Externí odkaz:
http://arxiv.org/abs/hep-ph/0604031
Autor:
Bernreuther, W., Bonciani, R., Gehrmann, T., Heinesch, R., Leineweber, T., Mastrolia, P., Remiddi, E.
During the last year, analytic expressions for the two-loop QCD corrections to the form factors for the vector, axial-vector, scalar and pseudo-scalar vertices involving a pair of heavy quarks, $Q \bar{Q}$, were calculated. The results are valid for
Externí odkaz:
http://arxiv.org/abs/hep-ph/0601207