Zobrazeno 1 - 10
of 77 549
pro vyhledávání: '"BRANCHING RATIO"'
Autor:
Nguyen, Le-Anh, Bui, Minh-Loc
Background: Beta-delayed proton emission from neutron halo nuclei $^{11}$Be represents a rare decay process. The existence of the narrow resonance near the proton-emission threshold in $^{11}$B explains its unexpectedly high probability. However, the
Externí odkaz:
http://arxiv.org/abs/2411.10700
Autor:
NA62 Collaboration
A measurement of the $K^{+}\rightarrow\pi^{+}\nu\bar{\nu}$ decay by the NA62 experiment at the CERN SPS is presented, using data collected in 2021 and 2022. This dataset was recorded, after modifications to the beamline and detectors, at a higher ins
Externí odkaz:
http://arxiv.org/abs/2412.12015
Autor:
Czaja, Mateusz, Misiak, Mikolaj
The rare decay B_s -> mu^+ mu^- provides an important constraint on possible deviations from the Standard Model in b-s-l-l interactions. The present weighted average of its branching ratio measurements amounts to (3.34 \pm 0.27) x 10^-9, which remain
Externí odkaz:
http://arxiv.org/abs/2407.03810
Autor:
Paulsen, W., Li, K. C. W., Siem, S., Ingeberg, V. W., Larsen, A. C., Eriksen, T. K., Berg, H. C., Bjørøen, M. M., Coombes, B. J., Dowie, J. T. H., Furmyr, F. W., Garrote, F. L. B., Gjestvang, D., Görgen, A., Kibédi, T., Markova, M., Modamio, V., Sahin, E., Stuchbery, A. E, Tveten, G. M., Valsdòttir, V. M.
The radiative branching ratio of the Hoyle state is crucial to estimate the triple-$\alpha$ reaction rate in stellar environments at medium temperatures. Knowledge of the $\gamma$-decay channel is critical as this is the dominant radiative decay chan
Externí odkaz:
http://arxiv.org/abs/2406.00397
Publikováno v:
J. High Energ. Phys. 2024, 135 (2024)
The recent measurements of $h \to Z \gamma$ from ATLAS and CMS show an excess of the signal strength $\mu_Z = (\sigma\cdot{\cal B})_{\mathrm{obs}}/(\sigma\cdot{\cal B})_{\mathrm{SM}}=2.2\pm 0.7$, normalized as 1 in the standard model~(SM). If confirm
Externí odkaz:
http://arxiv.org/abs/2402.08190
Autor:
Luo, Zifeng, Barbui, M., Bishop, J., Chubarian, G., Goldberg, V. Z., Harris, E., Koshchiy, E., Parker, C. E., Roosa, M., Saastamoinen, A., Scriven, D. P., Rogachev, G. V.
Publikováno v:
Phys. Rev. C 109, 025801 (2024)
Background: The triple-alpha process is a vital reaction in nuclear astrophysics, characterized by two consecutive reactions [$2\alpha\leftrightarrows{^{8}\rm{Be}}(\alpha,\gamma){^{12}\rm{C}}$] that drive carbon formation. The second reaction occurs
Externí odkaz:
http://arxiv.org/abs/2310.18475
Autor:
Czaja, Mateusz1 (AUTHOR) mateusz.czaja@fuw.edu.pl, Misiak, Mikołaj1 (AUTHOR) mikolaj.misiak@fuw.edu.pl
Publikováno v:
Symmetry (20738994). Jul2024, Vol. 16 Issue 7, p917. 16p.
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-15 (2024)
Abstract The recent measurements of h → Zγ from ATLAS and CMS show an excess of the signal strength μ Z = σ · B obs / σ · B SM $$ {\left(\sigma \cdotp \mathcal{B}\right)}_{\textrm{obs}}/{\left(\sigma \cdotp \mathcal{B}\right)}_{\textrm{SM}} $
Externí odkaz:
https://doaj.org/article/026ba2c4ccef4c3d9d33a1b8b7283184
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