Bergner, Georg and Giudice, Pietro and Muenster, Gernot and Montvay, Istvan and Piemonte, Stefano (2017) Spectrum and mass anomalous dimension of SU(2) adjoint QCD with two Dirac flavors. PHYSICAL REVIEW D, 96 (3): 034504. ISSN 2470-0010, 2470-0029
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In this work we present the results of our investigation of SU(2) gauge theory with two Dirac fermions in the adjoint representation (aQCD2), which belongs to the class of strongly interacting gauge theories that are of basic interest for extensions of the Standard Model. We have done numerical lattice simulations of this theory at two different values of the gauge coupling and several fermion masses. Our results include the particle spectrum and the mass anomalous dimension. The spectrum contains new exotic fermion-gluon states and flavor-singlet mesons. The mass anomalous dimension is determined from the scaling of the masses and the mode number. The remnant dependence of the universal mass ratios and mass anomalous dimension on the gauge coupling indicates the relevance of scaling corrections, such that earlier estimations for the universal fixed point value of the mass anomalous dimension are incomplete without their inclusion.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SYMMETRY-BREAKING; LATTICE QCD; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Dirk Pleiter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:16 |
| Last Modified: | 28 Feb 2019 09:24 |
| URI: | https://pred.uni-regensburg.de/id/eprint/1393 |
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