Thomas Hahn
YOU?
Author Swipe
View article: Analytic method for quadratic polarons in nonparabolic bands
Analytic method for quadratic polarons in nonparabolic bands Open
Including the effect of lattice anharmonicity on electron-phonon interactions\nhas recently garnered attention due to its role as a necessary and significant\ncomponent in explaining various phenomena, including superconductivity, optical\…
View article: Deployment of High Energy Physics software with a standard method
Deployment of High Energy Physics software with a standard method Open
The installation and maintenance of scientific software for research in experimental, phenomenological, and theoretical High Energy Physics (HEP) requires a considerable amount of time and expertise. While many tools are available to make …
View article: Polaron with Quadratic Electron-phonon Interaction
Polaron with Quadratic Electron-phonon Interaction Open
We present the first numerically exact study of a polaron with quadratic coupling to the oscillator displacement, using two alternative methodological developments. Our results cover both anti-adiabatic and adiabatic regimes and the entire…
View article: Deployment of High Energy Physics software with a standard method
Deployment of High Energy Physics software with a standard method Open
The installation and maintenance of scientific software for research in experimental, phenomenological, and theoretical High Energy Physics (HEP) requires a considerable amount of time and expertise. While many tools are available to make …
View article: Shape-stabilization of organic phase change materials as mechanically stable silica boards with high latent heats synthesized via sol-gel route
Shape-stabilization of organic phase change materials as mechanically stable silica boards with high latent heats synthesized via sol-gel route Open
Monolithic shape-stabilized phase change materials (ss-PCM) are of great interest for energy-saving construction materials, solar-water heating systems and passive cooling systems of batteries and photovoltaic cells. However, the applicati…
View article: Adult-Onset Still Disease After ChAdOx1 nCOV-19 Vaccination
Adult-Onset Still Disease After ChAdOx1 nCOV-19 Vaccination Open
We report a case of adult-onset Still disease (AOSD) after ChadOx1 nCOV-19/AZD1222 coronavirus disease 2019 (COVID-19) vaccine (AstraZeneca). A 51-year-old female received her first AZD1222 vaccine in spring of 2021.
View article: A Repository for Beyond-the-Standard-Model Tools
A Repository for Beyond-the-Standard-Model Tools Open
To aid phenomenological studies of Beyond-the-Standard-Model (BSM) physics scenarios, a web repository for BSM calculational tools has been created. We here present brief overviews of the relevant codes, ordered by topic as well as by alph…
View article: Higgs-mass predictions in the MSSM and beyond
Higgs-mass predictions in the MSSM and beyond Open
Predictions for the Higgs masses are a distinctive feature of supersymmetric extensions of the Standard Model, where they play a crucial role in constraining the parameter space. The discovery of a Higgs boson and the remarkably precise me…
View article: New Features in FeynArts & Friends, and how they got used in FeynHiggs
New Features in FeynArts & Friends, and how they got used in FeynHiggs Open
This note gives an update on recent developments in FeynArts, FormCalc, and LoopTools, and shows how the new features were used in making the latest version of FeynHiggs.
View article: Synthesis of monolithic shape-stabilized phase change materials with high mechanical stability <i>via</i> a porogen-assisted <i>in situ</i> sol–gel process
Synthesis of monolithic shape-stabilized phase change materials with high mechanical stability <i>via</i> a porogen-assisted <i>in situ</i> sol–gel process Open
Nanoconfinement of PCMs in core-shell-like silica structures via an inexpensive porogen-assisted sol–gel process to produce shape-stabilized PCMs as monoliths with high mechanical stability and high loading capacity.
View article: Loopedia, a database for loop integrals
Loopedia, a database for loop integrals Open
Loopedia is a new database at https://loopedia.org for Feynman integrals, providing both bibliographic information as well as results made available by the community. Its bibliometry is complementary to that of Inspire or arXiv, as it allo…
View article: Standard Model Theory for the FCC-ee Tera-Z stage
Standard Model Theory for the FCC-ee Tera-Z stage Open
The future 100-km circular collider FCC at CERN is planned to operate in one of its modes as an electron-positron FCC-ee machine. We give an overview comparing the theoretical status to the experimental demands of one of four foreseen FCC-…
View article: Loopedia, a Database for Loop Integrals
Loopedia, a Database for Loop Integrals Open
Loopedia is a new database at loopedia.org for Feynman integrals, providing both bibliographic information as well as results made available by the community. Its bibliometry is complementary to that of Inspire or arXiv, as it allows to se…
View article: Loopedia, a Database for Loop Integrals
Loopedia, a Database for Loop Integrals Open
Loopedia is a new database at loopedia.org for Feynman integrals, providing both bibliographic information as well as results made available by the community. Its bibliometry is complementary to that of Inspire or arXiv, as it allows to se…
View article: Hierarchically Structured Porous Spinels via an Epoxide-Mediated Sol–Gel Process Accompanied by Polymerization-Induced Phase Separation
Hierarchically Structured Porous Spinels via an Epoxide-Mediated Sol–Gel Process Accompanied by Polymerization-Induced Phase Separation Open
Enhancing the activity and stability of catalysts is a major challenge in scientific research nowadays. Previous studies showed that the generation of an additional pore system can influence the catalytic performance of porous catalysts re…
View article: Standard Model Theory for the FCC-ee: The Tera-Z
Standard Model Theory for the FCC-ee: The Tera-Z Open
The future 100-km circular collider FCC at CERN is planned to operate in one of its modes as an electron-positron FCC-ee machine. We give an overview of the theoretical status compared to the experimental demands of one of four foreseen FC…
View article: FormCalc 9 and Extensions
FormCalc 9 and Extensions Open
We present Version 9 of the Feynman-diagram calculator FormCalc and a\nflexible new suite of shell scripts and Mathematica packages based on FormCalc,\nwhich can be adapted and used as a template for calculations.\n
View article: High Precision Prediction for M in the MSSM
High Precision Prediction for M in the MSSM Open
The new particle discovered at the LHC can be interpreted as the lightest CPCP-even Higgs boson of the Minimal Supersymmetric Standard Model (MSSM), where MhMh denotes its mass. The experimental precision of this mass has reached the level…
View article: Renormalization of the Complex MSSM in FeynArts/FormCalc
Renormalization of the Complex MSSM in FeynArts/FormCalc Open
The consistent renormalization of all relevant sectors of the MSSM with complex parameters (cMSSM) and the inclusion in the FeynArts/FormCalc package has recently been completed and is reviewed here. A comparison of renormalization schemes…
View article: Renormalization scheme dependence of the two-loop QCD corrections to the neutral Higgs-boson masses in the MSSM
Renormalization scheme dependence of the two-loop QCD corrections to the neutral Higgs-boson masses in the MSSM Open
Reaching a theoretical accuracy in the prediction of the lightest MSSM Higgs-boson mass, [Formula: see text], at the level of the current experimental precision requires the inclusion of momentum-dependent contributions at the two-loop lev…
View article: Implementation of the $\mathcal{O}{\left(\alpha_t^2\right)}$ MSSM Higgs-mass corrections in $\tt{FeynHiggs}$
Implementation of the $\mathcal{O}{\left(\alpha_t^2\right)}$ MSSM Higgs-mass corrections in $\tt{FeynHiggs}$ Open
We describe the implementation of the two-loop Higgs-mass corrections of $\\mathcal{O}{\\left(\\alpha_t^2\\right)}$ in the complex MSSM in $\\tt{FeynHiggs}$. The program for the calculation is included in $\\tt{FeynHiggs}$ and documented h…
View article: Implementation of the $\mathcal{O}{\left(α_t^2\right)}$ MSSM Higgs-mass corrections in $\tt{FeynHiggs}$
Implementation of the $\mathcal{O}{\left(α_t^2\right)}$ MSSM Higgs-mass corrections in $\tt{FeynHiggs}$ Open
We describe the implementation of the two-loop Higgs-mass corrections of $\mathcal{O}{\left(α_t^2\right)}$ in the complex MSSM in $\tt{FeynHiggs}$. The program for the calculation is included in $\tt{FeynHiggs}$ and documented here in some…