Dresden 2013 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 23: Quantenfeldtheorie 1

T 23.2: Gruppenbericht

Dienstag, 5. März 2013, 17:05–17:25, WIL-C129

Towards Higgs sector spectroscopy — •Axel Maas — Theoretisch-Physikalisches Institut, Universität Jena, Max-Wien-Platz 1, 07743 Jena

Just like the weakly-interacting QED the weak and Higgs interaction can sustain bound states. Field-theoretical considerations suggest that these are deeply-bound, relativistic bound states, at least for a sufficiently light Higgs. Thus, they cannot be described using quantum mechanics. In the here presented lattice results these considerations are confirmed, and the low-lying spectrum of bound states is determined. It is shown how these relate to the observed Higgs and W/Z signals, being in agreement with present experimental results. Furthermore, first estimates are provided for how additional bound states could be observed experimentally.