Results 81 to 90 of about 12,914 (164)

Asymptotically safe extensions of the Standard Model with flavour phenomenology

, 2019
We investigate asymptotically safe extensions of the Standard Model with new matter fields arising in the TeV energy range. The new sector contains singlet scalars and vector-like fermions in representations which permit Yukawa interactions with the ...
Hiller, Gudrun, Hormigos-Feliu, Clara, Litim, Daniel F., Steudtner, Tom   +3 more
core  

In search of an invisible Z′

Journal of High Energy Physics
We consider extending the Standard Model by an anomaly-free and possibly flavour non-universal U(1) X gauge symmetry, whose breaking gives a Z′ boson that does not affect electroweak precision observables at tree-level or via 1-loop renormalisation group
Joe Davighi
doaj   +1 more source

Physics at a 100 TeV pp collider: Higgs and EW symmetry breaking studies [PDF]

, 2016
This report summarises the physics opportunities for the study of Higgs bosons and the dynamics of electroweak symmetry breaking at the 100 TeV pp collider.Comment: 187 pages, 94 figures.
Anastasiou, C., Astill, W., Bambhaniya, G., Behr, J. K., Bizon, W., Bortoletto, D., Buttazzo, D., Cao, Q. -H., Caola, F., Chakrabortty, J., Chen, C. -Y., Chen, S. -L., Contino, R., Curtin, D., de Florian, D., Dev, P. S. Bhupal, Dulat, F., Englert, C., Frost, J. A., Fuks, B., Gherghetta, T., Giudice, G., Gluza, J., Gray, H., Greiner, N., Hartland, N. P., Issever, C., Jelinski, T., Karlberg, A., Katz, A., Kim, J. H., Kling, F., Lazopoulos, A., Lee, S. J., Liu, Y., Luisoni, G., Mangano, M. L., Mazzitelli, J., Mistlberger, B., Mohapatra, R. N., Monni, P., Nikolopoulos, K., Panico, G., Papaefstathiou, A., Perelstein, M., Petriello, F., Plehn, T., Ramsey-Musolf, M. J., Reimitz, P., Ren, J., Rojo, J., Sakurai, K., Sala, F., Schell, T., Selvaggi, M., Shao, H. -S., Son, M., Spannowsky, M., Srivastava, T., Su, S. -F., Szafron, R., Tait, T., Tesi, A., Thamm, A., Torrielli, P., Tramontano, F., Winter, J., Wulzer, A., Yan, Q. -S., Yao, W. M., Zanderighi, G., Zhang, Y. -C., Zhao, X., Zhao, Z., Zhong, Y. -M.   +74 more
core   +2 more sources

Barr-Zee diagrams at a high-energy muon collider

Journal of High Energy Physics
The sensitivity of electron EDM experiments has been increasing at a rapid pace, and could yield indications of new physics in the coming decade. An intriguing possibility is that an EDM signal could be generated by new, electroweak-charged particles at ...
Samuel Homiller, Jackie Lodman, Aditya Parikh, Matthew Reece   +3 more
doaj   +1 more source

The BSM Physics Case of the ILC

, 2016
In this talk I summarize the physics case of the International Linear Collider (ILC) focusing on its potential towards discovery, discrimation or disentanglement of new physics beyond the Standard Model (BSM).Comment: 8 pages, 2 figures, Talk presented ...
Reuter, Jürgen
core  

Positivity from J-Basis operators in the standard model effective Field Theory

Journal of High Energy Physics
In the effective field theory (EFT), the positivity bound on dim-8 effective operators tells us that the s 2 contribution in the scattering amplitude of 2-to-2 process geometrically corresponds to the convex cone composed of the ultraviolet (UV) states ...
Chengjie Yang, Zhe Ren, Jiang-Hao Yu
doaj   +1 more source

Quantum detection of new physics in top-quark pair production at the LHC

Journal of High Energy Physics
The recent observation of entanglement between top and anti-top quarks at the LHC opens the way to interpreting collider data with quantum information tools. In this work we investigate the relevance of quantum observables in searches of new physics.
Fabio Maltoni, Claudio Severi, Simone Tentori, Eleni Vryonidou   +3 more
doaj   +1 more source

Simplified Models for New Physics in Vector Boson Scattering - Input for Snowmass 2013

, 2013
In this contribution to the Snowmass process 2013 (which is a preliminary version of [1]) we give a brief review of how new physics could enter in the electroweak (EW) sector of the Standard Model (SM).
Kilian, W., Reuter, J., Sekulla, M.
core  

General form of effective operators from hidden sectors

Journal of High Energy Physics
We perform a model-independent analysis of the dimension-six terms that are generated in the low energy effective theory when a hidden sector that communicates with the Standard Model (SM) through a specific portal operator is integrated out.
Aqeel Ahmed, Zackaria Chacko, Ina Flood, Can Kilic, Saereh Najjari   +4 more
doaj   +1 more source

Complete UV resonances of the dimension-8 SMEFT operators

Journal of High Energy Physics
The effective field theory approach parameterizes the low energy behaviors of all possible ultraviolet (UV) theories in a systematic way. One of the most important tasks is thus to find the connection between the effective operators and their UV origins.
Hao-Lin Li, Yu-Han Ni, Ming-Lei Xiao, Jiang-Hao Yu   +3 more
doaj   +1 more source