Zobrazeno 1 - 10
of 181
pro vyhledávání: '"Weinberg, E. P."'
Autor:
Lattice Strong Dynamics Collaboration, Brower, R. C., Owen, E., Rebbi, C., Culver, C., Schaich, D., Cushman, K. K., Fleming, G. T., Gasbarro, A., Hasenfratz, A., Neil, E. T., Ingoldby, J., Jin, X. Y., Osborn, J. C., Rinaldi, E., Vranas, P., Weinberg, E., Witzel, O.
The SU(3) gauge theory with $N_f=8$ nearly massless Dirac fermions has long been of theoretical and phenomenological interest due to the near-conformality arising from its proximity to the conformal window. One particularly interesting feature is the
Externí odkaz:
http://arxiv.org/abs/2306.06095
Autor:
LSD Collaboration, Appelquist, T., Brower, R. C., Cushman, K. K., Fleming, G. T., Gasbarro, A., Hasenfratz, A., Ingoldby, J., Jin, X. Y., Neil, E. T., Osborn, J. C., Rebbi, C., Rinaldi, E., Schaich, D., Vranas, P., Weinberg, E., Witzel, O.
Publikováno v:
Phys.Rev.D 108 (2023) 9, L091505
We analyze newly expanded and refined data from lattice studies of an SU(3) gauge theory with eight Dirac fermions in the fundamental representation. We focus on the light composite states emerging from these studies, consisting of a set of pseudosca
Externí odkaz:
http://arxiv.org/abs/2305.03665
Autor:
Appelquist, T., Brower, R. C., Cushman, K. K., Fleming, G. T., Gasbarro, A., Hasenfratz, A., Ingoldby, J., Jin, X. Y., Kiskis, J., Neil, E. T., Osborn, J. C., Rebbi, C., Rinaldi, E., Schaich, D., Vranas, P., Weinberg, E., Witzel, O.
The appearance of a light composite $0^+$ scalar resonance in nearly conformal gauge-fermion theories motivates further study of the low energy structure of these theories. To this end, we present a nonperturbative lattice calculation of s-wave scatt
Externí odkaz:
http://arxiv.org/abs/2106.13534
Akademický článek
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Autor:
Appelquist, T., Brower, R. C., Fleming, G. T., Gasbarro, A., Hasenfratz, A., Ingoldby, J., Kiskis, J., Osborn, J. C., Rebbi, C., Rinaldi, E., Schaich, D., Vranas, P., Weinberg, E., Witzel, O.
Publikováno v:
Phys. Rev. D 98, 114510 (2018)
We construct a generalized linear sigma model as an effective field theory (EFT) to describe nearly conformal gauge theories at low energies. The work is motivated by recent lattice studies of gauge theories near the conformal window, which have show
Externí odkaz:
http://arxiv.org/abs/1809.02624
Publikováno v:
Phys. Rev. D 93, 075028 (2016)
We propose to construct a chirally broken model based on the infrared fixed point of a conformal system by raising the mass of some flavors while keeping the others massless. In the infrared limit the massive fermions decouple and the massless fermio
Externí odkaz:
http://arxiv.org/abs/1512.02576
The dynamical origin of electroweak symmetry breaking is an open question with many possible theoretical explanations. Strongly coupled systems predicting the Higgs boson as a bound state of a new gauge-fermion interaction form one class of candidate
Externí odkaz:
http://arxiv.org/abs/1510.04635
Autor:
Appelquist, T., Brower, R. C., Fleming, G. T., Kiskis, J., Lin, M. F., Neil, E. T., Osborn, J. C., Rebbi, C., Rinaldi, E., Schaich, D., Schroeder, C., Syritsyn, S., Voronov, G., Vranas, P., Weinberg, E., Witzel, O.
Publikováno v:
Phys. Rev. D 90, 114502 (2014)
We study an SU(3) gauge theory with Nf=8 degenerate flavors of light fermions in the fundamental representation. Using the domain wall fermion formulation, we investigate the light hadron spectrum, chiral condensate and electroweak S parameter. We co
Externí odkaz:
http://arxiv.org/abs/1405.4752
Autor:
Brower, R. C., Cheng, M., Fleming, G. T., Lin, M. F., Neil, E. T., Osborn, J. C., Rebbi, C., Rinaldi, E., Schaich, D., Schroeder, C., Voronov, G., Vranas, P., Weinberg, E., Witzel, O.
Publikováno v:
Phys. Rev. D 90, 014503 (2014)
We present a novel technique for the determination of the topological susceptibility (related to the variance of the distribution of global topological charge) from lattice gauge theory simulations, based on maximum-likelihood analysis of the Markov-
Externí odkaz:
http://arxiv.org/abs/1403.2761
Akademický článek
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