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pro vyhledávání: '"DECAY: WIDTH"'
The Higgs boson decay into bottom quarks is the dominant decay channel contributing to its total decay width, which can be used to measure the bottom quark Yukawa coupling and mass. This decay width has been computed up to $\mathcal{O}(\alpha_s^4)$ f
Externí odkaz:
http://arxiv.org/abs/2411.07493
In this paper, we propose a novel method of using the characteristic operator (CO) ${\cal \hat{D}}_{n_{\gamma},n_{\beta}}$ to formalize the principle of maximum conformality (PMC) procedures. Using the CO formulism, we are able to facilitate the deri
Externí odkaz:
http://arxiv.org/abs/2411.15402
Autor:
Agrawal, Pankaj, Das, Biswajit
Publikováno v:
Modern Physics Letters A, Vol. 39, No. 12 (2024) 2430002
Despite the discovery of the Higgs boson, the Higgs sector of the standard model is still not fully established. In particular, the self couplings of the Higgs boson, and its couplings with gauge bosons, are still to be fully determined. We consider
Externí odkaz:
http://arxiv.org/abs/2408.02255
In the present work, we investigate the impact of finite volume on the in-medium properties of kaons ($K^+$, $K^0$) and antikaons ($K^-$, $\bar{K^0}$), and $\phi$ mesons in the isospin asymmetric strange hadronic medium at finite density and temperat
Externí odkaz:
http://arxiv.org/abs/2407.05263
In this paper, we analyze the top-quark decay $t\to Wb$ up to next-to-next-to-next-to-leading order (N$^{3}$LO) QCD corrections. For the purpose, we first adopt the principle of maximum conformality (PMC) to deal with the initial pQCD series. Then we
Externí odkaz:
http://arxiv.org/abs/2404.11133
Autor:
Chahal, Nisha1 (AUTHOR), Kumar, Rajesh2 (AUTHOR), Dutt, Suneel1 (AUTHOR), Kumar, Arvind1 (AUTHOR) kumara@nitj.ac.in
Publikováno v:
European Physical Journal C -- Particles & Fields. Oct2024, Vol. 84 Issue 10, p1-19. 19p.
We analyze the mass and width of the doubly heavy tetraquark $T_{ccs}$ composed of a heavy diquark and a light-quark cloud with strangeness with assuming that a color antitriplet heavy diquark is a dominant component of the doubly charmed tetraquarks
Externí odkaz:
http://arxiv.org/abs/2403.03548
Publikováno v:
Symmetry 2024, 16(2), 173
The precision and predictive power of perturbative QCD (pQCD) prediction depends on both a precise, convergent fixed-order series and a reliable way of estimating the contributions of unknown higher-order (UHO) terms. It has been shown that by applyi
Externí odkaz:
http://arxiv.org/abs/2312.01373
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