Results 31 to 40 of about 134,366 (253)

Fermion Masses and Mixings in GUTs with Non-Canonical U(1)_Y [PDF]

, 2007
We discuss fermion masses and mixings in models derived from orbifold GUTs such that gauge coupling unification is achieved without low energy supersymmetry by utilizing a non-canonical U(1)_Y. A gauged U(1)_X flavor symmetry plays an essential role, and
Chin-Aik Lee, Ilia Gogoladze, M. Gell-Mann, Qaisar Shafi, S. L. Glashow, T. Yanagida, Tianjun Li   +6 more
core   +1 more source

Localized anomalies in orbifold gauge theories

, 2003
We apply the path-integral formalism to compute the anomalies in general orbifold gauge theories (including possible non-trivial Scherk-Schwarz boundary conditions) where a gauge group G is broken down to subgroups H_f at the fixed points y=y_f. Bulk and
A. Delgado, A. Delgado, A. Pomarol, B.A. Dobrescu, C.A. Scrucca, C.A. Scrucca, C.G. Callan, E.A. Mirabelli, F. Gmeiner, G. Shiu, G. v. Gersdorff, G. von Gersdorff, G. von Gersdorff, H.D. Kim, I. Antoniadis, I. Antoniadis, I. Antoniadis, I. Antoniadis, I. Antoniadis, I. Antoniadis, I. Antoniadis, I. Antoniadis, I. Antoniadis, I. Antoniadis, J. Erler, J. Scherk, J. Scherk, J. Wess, J.D. Lykken, K. Fujikawa, K. Fujikawa, K. Fujikawa, L. Pilo, L.J. Dixon, L.J. Dixon, M. Quirós, M.B. Green, N. Arkani-Hamed, N. Arkani-Hamed, N. Arkani-Hamed, N. Arkani-Hamed, N. Borghini, P. Fayet, P. Fayet, P. Horava, R. Barbieri, R. Barbieri, S. Groot Nibbelink, S. Groot Nibbelink, S. Groot Nibbelink, T. Asaka, T. Han, W.A. Bardeen, Y. Hosotani, Y. Hosotani   +54 more
core   +3 more sources

GLSMs for non-Kahler Geometries [PDF]

, 2012
We identify a simple mechanism by which H-flux satisfying the modified Bianchi identity arises in garden-variety (0,2) gauged linear sigma models.
A Adams, A Adams, A Adams, A Basu, A Manohar, A Sen, A Strominger, Allan Adams, C Beasley, C Hull, C Hull, C Quigley, C Quigley, DR Morrison, E D’Hoker, E D’Hoker, E Goldstein, E Silverstein, E Silverstein, E Witten, Ethan Dyer, GW Moore, GW Moore, J McOrist, J Preskill, J-X Fu, Jaehoon Lee, K Becker, K Dasgupta, K Hori, K Hori, K Konishi, M Blaszczyk, M Michelsohn, M Roček, MB Green, S Groot Nibbelink   +36 more
core   +2 more sources

A Simulative Evaluation of Triply Periodic Minimal Surface Structures in the Context of Elastocaloric Applications

Advanced Engineering Materials, EarlyView.
A simulative evaluation of triply periodic minimal surface (TPMS) structures for an elastocaloric application under compressive load is performed. For the evaluation of the structure's performance, surface/volume ratio, generated heat and invested mechanical work are taken into account and are compared to a tube as a reference specimen.
Michael Fries, Paul Motzki, Dirk Bähre, Anne Jung   +3 more
wiley   +1 more source

Dark Matter With Stückelberg Axions

Frontiers in Physics, 2019
Here, we review a class of models which generalize the traditional Peccei-Quinn (PQ) axion solution by a Stückelberg pseudoscalar. Such axion models represent a significant variant with respect to earlier scenarios, where axion fields were associated ...
Claudio Corianò, Paul H. Frampton, Nikos Irges, Alessandro Tatullo   +3 more
doaj   +1 more source

Versatile Selective Soldering via Molten Metal Printing for Heat‐Sensitive 3D Electronics and Smart Wearables

Advanced Functional Materials, EarlyView.
Selective soldering via molten metal printing enables component integration, even in heat‐sensitive applications across fields like additive manufacturing, sustainable electronics, and smart textiles. This method overcomes the temperature limitations of existing technologies.
Dániel Straubinger, Peter Koltay, Roland Zengerle, Sabrina Kartmann, Zhe Shu   +4 more
wiley   +1 more source

Identification and Reversible Optical Switching of NV+ Centers in Diamond

Advanced Functional Materials, EarlyView.
NV+ centers in diamond are predicted to coexist with NV0 and NV– centers, but direct experimental confirmation remains challenging. Using positron annihilation spectroscopy with in situ light illumination, a charge transition NV+/0 is observed at 1.234(8) eV.
Marcel Dickmann, Lucian Mathes, Ricardo Helm, Vassily Vadimovitch Burwitz, Werner Egger, Johannes Mitteneder, Christoph Hugenschmidt, Peter Sperr, Maik Butterling, Maciej Oskar Liedke, Andreas Wagner, Joachim Dorner, Thomas Schwarz‐Selinger, Günther Dollinger   +13 more
wiley   +1 more source

Global anomalies & bordism of non-supersymmetric strings

Journal of High Energy Physics
The three tachyon-free non-supersymmetric string theories in ten dimensions provide a handle on quantum gravity away from the supersymmetric lamppost.
Ivano Basile, Arun Debray, Matilda Delgado, Miguel Montero   +3 more
doaj   +1 more source

Abelian Flavour Symmetries in Supersymmetric Models

, 1996
We propose a theory of flavour based on abelian horizontal gauge symmetries and modular invariances. We construct explicit supergravity models where the scale of the horizontal $U(1)$ symmetry breaking is fixed by the Green-Schwarz mechanism for anomaly ...
Antoniadis, Atick, Bagger, Bagger, Berezhiani, Berezhiani, Bijnens, Binétruy, Binétruy, Brax, Brignole, Brignole, Buccella, C. Grojean, C.A. Savoy, Casas, Choudhury, Cremmer, Cvetic, Dine, Dine, Dudas, Dudas, E. Dudas, Fayet, Ferrara, Ferrara, Font, Font, Font, Froggatt, Gabbiani, Giudice, Green, Grossman, Ibáñez, Ibáñez, Ibáñez, Jain, Kaplunovsky, Kikkawa, Leurer, Leurer, Nir, Nir, Ramond, S. Pokorski, Sakai   +47 more
core   +2 more sources

Graded Hydroxyapatite Triply Periodic Minimal Surface Structures for Bone Tissue Engineering Applications

Advanced Healthcare Materials, EarlyView.
This study investigates the role of triply periodic minimal structures in load bearing bone tissue engineering applications. Research uses a combination of mechanical testing, material characterization, and in vitro tests to study the impact of TPMS lattice structures (gyroid, lidinoid and split‐P).
Tejas M. Koushik, Catherine M. Miller, Elsa Antunes   +2 more
wiley   +1 more source