1.

Systematic construction of basis invariants in the 2HDM
/ Trautner, Andreas
A new systematic method for the explicit construction of (basis)invariants is introduced and employed to construct the full ring of basis invariants of the TwoHiggsDoubletModel (2HDM) scalar sector. [...]
Published in JHEP 1905 (2019) 208
10.1007/JHEP05(2019)208
arXiv:1812.02614
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2.

Beyond basis invariants
/ Ivanov, Igor P. ; Nishi, Celso C. ; Trautner, Andreas
Physical observables cannot depend on the basis one chooses to describe fields. [...]
Published in EPJC 79 (2019) 315
10.1140/epjc/s100520196845x
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3.

Basisinvariant conditions for $CP$ symmetry of order four
/ Ivanov, Igor P. ; Nishi, Celso C. ; Silva, João P. ; Trautner, Andreas
ThreeHiggsdoublet models (3HDM) allow for a novel, physically distinct form of $CP$ invariance: $CP$ symmetry of order 4 (CP4). [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.015039
arXiv:1810.13396
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4.

CP violation from string theory
/ Nilles, Hans Peter ; Ratz, Michael ; Trautner, Andreas ; Vaudrevange, Patrick K.S.
We identify a natural way to embed CP symmetry and its violation in string theory. [...]
Published in Physics letters B 786 (2018) 283287
10.1016/j.physletb.2018.09.053
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5.

Vectorlike chiral fourth family to explain muon anomalies
/ Raby, Stuart ; Trautner, Andreas
The Standard Model (SM) is amended by one generation of quarks and leptons which are vectorlike (VL) under the SM gauge group but chiral with respect to a new ${U\left(1\right)}_{34}$ gauge symmetry. [...]
Published in Physical Review D 97 (2018)
10.1103/PhysRevD.97.095006
arXiv:1712.09360
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6.

Exploring extra dimensions through inflationary tensor modes
/ Im, Sang ; Nilles, Hans ; Trautner, Andreas
Predictions of inflationary schemes can be influenced by the presence of extra dimensions. [...]
Published in JHEP 1803 (2018) 004
10.1007/JHEP03(2018)004
arXiv:1707.03830
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7.

C P $$ \mathcal{C}\mathcal{P} $$ violation with an unbroken C P $$ \mathcal{C}\mathcal{P} $$ transformation
/ Ratz, Michael ; Trautner, Andreas
A C P $$ \mathcal{C}\mathcal{P} $$ conserving SU(3) gauge theory is spontaneously broken to T 7 by the vacuum expectation value (VEV) of a 15 plet. [...]
Published in JHEP 1702 (2017) 103
10.1007/JHEP02(2017)103
arXiv:1612.08984
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8.

Anomalysafe discrete groups
/ Chen, MuChun ; Fallbacher, Maximilian ; Ratz, Michael ; Trautner, Andreas ; et al
We show that there is a class of finite groups, the socalled perfect groups, which cannot exhibit anomalies. [...]
Published in Physics letters B (2015)
10.1016/j.physletb.2015.05.047
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9.

Symmetries of symmetries and geometrical CP violation
/ Fallbacher, Maximilian ; Trautner, Andreas
We investigate transformations which are not symmetries of a theory but nevertheless leave invariant the set of all symmetry elements and representations. [...]
Published in Nuclear Physics B 894 (2015) 136160
10.1016/j.nuclphysb.2015.03.003
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10.

CP violation from finite groups
/ Chen, MuChun ; Fallbacher, Maximilian ; Mahanthappa, K.T. ; Ratz, Michael ; et al
We discuss the origin of CP violation in settings with a discrete (flavor) symmetry G . [...]
Published in Nuclear Physics B 883 (2014) 267305
10.1016/j.nuclphysb.2014.03.023
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