Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Shtabovenko, Vladyslav"'
Autor:
Shtabovenko, Vladyslav
We briefly introduce new multiloop capabilities of the Mathematica package FeynCalc 10 and a collection of interfaces connecting FeynCalc to such popular tools as QGRAF, Fiesta, pySecDec, LoopTools, KIRA, FIRE or Fermat. In addition to that, we showc
Externí odkaz:
http://arxiv.org/abs/2407.01447
We provide details to several technical aspects which are important for the calculation of next-to-next-to-leading order corrections to the mixing of neutral $B$ mesons. This includes the computation of the master integrals for finite charm and botto
Externí odkaz:
http://arxiv.org/abs/2405.14698
Autor:
Dziurda, Agnieszka, Erben, Felix, Führing, Marc Quentin, Humair, Thibaud, Latham, Thomas, Malami, Eleftheria, Reeck, Pascal, Shtabovenko, Vladyslav, Torres, Melissa Cruz, Uematsu, Yuma, Vos, K. Keri
This summary reviews contributions to the CKM 2023 workshop in Working Group 4: mixing and mixing-related $CP$ violation in B system. The theoretical and experimental progress is discussed.
Comment: Presented at the 12th Workshop on the CKM Unit
Comment: Presented at the 12th Workshop on the CKM Unit
Externí odkaz:
http://arxiv.org/abs/2404.03945
Autor:
Gerlach, Marvin, Nierste, Ulrich, Reeck, Pascal, Shtabovenko, Vladyslav, Steinhauser, Matthias
This report summarises recent advances made in the calculation of the NNLO QCD corrections to the width difference $\Delta\Gamma_s$ in the $B_s-\overline{B}_s$ system. The inclusion of the effects due to current-current operators leads to an updated
Externí odkaz:
http://arxiv.org/abs/2403.08316
Publikováno v:
Comput. Phys. Commun., 2024, 109357
In this work we report on a new version of FeynCalc, a Mathematica package widely used in the particle physics community for manipulating quantum field theoretical expressions and calculating Feynman diagrams. Highlights of the new version include gr
Externí odkaz:
http://arxiv.org/abs/2312.14089
Using diagrammatic resummation techniques, we investigate the double-logarithmic series of the "soft-overlap" contribution to $B_c \to \eta_c$ transition form factors at large hadronic recoil, assuming the scale hierarchy $m_b \gg m_c \gg \Lambda_{\r
Externí odkaz:
http://arxiv.org/abs/2309.08410
Autor:
Chobanova, Veronika, Wingate, Matthew, Yusa, Yosuke, Dalseno, Jeremy, De Bruyn, Kristof, Egede, Ulrik, Ferrari, Fabio, Humair, Thibaud, Lupato, Anna, Malami, Eleftheria, Qian, Wenbin, Fernández, Ramón Ángel Ruiz, Shtabovenko, Vladyslav, Tsang, Justus Tobias, Silva, Luiz Vale
This summary reviews contributions to the CKM 2021 workshop in Working Group 4. In particular, theoretical and experimental progress in determining $B$ meson mixing properties are discussed.
Comment: 20 pages, 6 figures, 11th International Works
Comment: 20 pages, 6 figures, 11th International Works
Externí odkaz:
http://arxiv.org/abs/2205.15662
We extend the theoretical prediction for the width difference $\Delta \Gamma_q$ in the mixing of neutral $B$ mesons in the Standard Model to next-to-next-to-leading order in $\alpha_s$. To this aim we calculate three-loop diagrams with two $|\Delta B
Externí odkaz:
http://arxiv.org/abs/2205.07907
We complete the calculation of the element $\Gamma_{12}^q$ of the decay matrix in $B_q-\bar{B}_q$ mixing, $q=d,s$, to order $\alpha_s$ in the leading power of the Heavy Quark Expansion. To this end we compute one- and two-loop contributions involving
Externí odkaz:
http://arxiv.org/abs/2202.12305
Autor:
Shtabovenko, Vladyslav
We report on the new functionality of the open-source Mathematica package FeynCalc relevant for multiloop calculations. In particular, we focus on such tasks as topology identification by means of the Pak algorithm, search for equivalent master integ
Externí odkaz:
http://arxiv.org/abs/2112.14132