Zobrazeno 1 - 10
of 7 527
pro vyhledávání: '"A. Schachner"'
Publikováno v:
Physics Letters B, Vol 855, Iss , Pp 138786- (2024)
In this note, we explore the distribution of vacuum expectation values of the superpotential W0 in explicit Type IIB flux compactifications. We show that the distribution can be approximated universally across geometries by a two-dimensional Gaussian
Externí odkaz:
https://doaj.org/article/80bdda524746458d9db4723935678999
Autor:
S. Krippendorf, A. Schachner
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-12 (2023)
Abstract In this note we construct large ensembles of supersymmetry breaking solutions arising in the context of flux compactifications of type IIB string theory. This class of solutions was previously proposed in [1] for which we provide the first e
Externí odkaz:
https://doaj.org/article/ff7e5f8bdbf0441db4ed1e7d16cd2d7f
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-30 (2023)
Abstract Moduli stabilisation in string compactifications with many light scalars remains a major blind-spot in the string landscape. In these regimes, analytic methods cease to work for generic choices of UV parameters which is why numerical techniq
Externí odkaz:
https://doaj.org/article/9bc7245aad3c43c99061e0891efca3e4
Autor:
Quevedo, Fernando, Schachner, Andreas
These lecture notes cover the Standard Model (SM) course for Part III of the Cambridge Mathematical Tripos, taught during the years 2020-2023. The course comprised 25 lectures and 4 example classes. Following a brief historical introduction, the SM i
Externí odkaz:
http://arxiv.org/abs/2409.09211
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-55 (2021)
Abstract Extracting reliable low-energy information from string compactifications notoriously requires a detailed understanding of the UV sensitivity of the corresponding effective field theories. Despite past efforts in computing perturbative string
Externí odkaz:
https://doaj.org/article/a23bd892ae8447b4b17fe86d3b5d4970
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-76 (2021)
Abstract We argue that the Standard Model quiver can be embedded into compact Calabi-Yau geometries through orientifolded D3-branes at del Pezzo singularities dP n with n ≥ 5 in a framework including moduli stabilisation. To illustrate our approach
Externí odkaz:
https://doaj.org/article/2e05b6d660ac4876bbdf3c96d32c7946
We construct compactifications of type IIB string theory that yield, at leading order in the $\alpha^\prime$ and $g_s$ expansions, de Sitter vacua of the form envisioned by Kachru, Kallosh, Linde, and Trivedi. We specify explicit Calabi-Yau orientifo
Externí odkaz:
http://arxiv.org/abs/2406.13751
We implement Genetic Algorithms for triangulations of four-dimensional reflexive polytopes which induce Calabi-Yau threefold hypersurfaces via Batryev's construction. We demonstrate that such algorithms efficiently optimize physical observables such
Externí odkaz:
http://arxiv.org/abs/2405.08871
Autor:
Schachner, Martin, Schneider, Bernd, Weissenbacher, Fabian, Kirillova, Nadezda, Possegger, Horst, Bischof, Horst, Klug, Corina
A better understanding of interactive pedestrian behavior in critical traffic situations is essential for the development of enhanced pedestrian safety systems. Real-world traffic observations play a decisive role in this, since they represent behavi
Externí odkaz:
http://arxiv.org/abs/2402.02533
Autor:
Gendler, Naomi, MacFadden, Nate, McAllister, Liam, Moritz, Jakob, Nally, Richard, Schachner, Andreas, Stillman, Mike
We enumerate topologically-inequivalent compact Calabi-Yau threefold hypersurfaces. By computing arithmetic and algebraic invariants and the Gopakumar-Vafa invariants of curves, we prove that the number of distinct simply connected Calabi-Yau threefo
Externí odkaz:
http://arxiv.org/abs/2310.06820