Details

Autor(en) / Beteiligte

• Aidala, C. A.
• Albrecht, J.
• Aliouche, Z.
• Barbosa, I. R.
• Bediaga, I. B.
• Belin, S.
• Bernet, R.
• Biolchini, A.
• Blake, T.
• Breer, N.
• Buchanan, E.
• Cadeddu, S.
• Calderon Ramirez, S.
• Casais Vidal, A.
• Castro Godinez, J.
• Cooke, N.
• Craik, D. C.
• Dadabaev, S.
• De Lucia, E.
• Denysenko, V.
• Donohoe, A. M.
• Dudek, M. W.
• Durham, J. M.
• Egorychev, A.
• Farmer, K.
• Fernez, A. D.
• Foulds-Holt, D.
• Galati, G.
• Gao, Y.
• Giasemis, F. I.
• Glaser, F. C.
• Göbel, C.
• Goncalves Abrantes, F.
• Gooding, J. A.
• Graugés, E.
• Gu, C.
• Gys, T.
• Hajheidari, M.
• Han, Q.
• Henderson, R. D. L.
• Henry, L.
• Hou, R.
• Hu, X.
• Inglessi, A.
• Jevtic, V.
• Jiang, Y. J.
• Kharisova, A.
• Kmiec, M. R.
• Kot, O.
• Kotriakhova, S.
• Kubis, S.
• Kudryavtsev, V.
• Lai, A.
• Lazzari, F.
• Lesiak, T.
• Li, H.
• Liu, F. L.
• Liu, Y.
• Long, T.
• Lupato, A.
• Lynch, K.
• Malczewski, J. J.
• Malinin, A.
• Martinazzoli, L.
• Martinelli, M.
• Matiunin, V.
• Maurice, E.
• Mohammed, R. A.
• Mokhnenko, S.
• Nasteva, I.
• Otalora Goicochea, J. M.
• Palano, A.
• Pappenheimer, C.
• Petrolini, A.
• Plo Casasus, M.
• Resmi, P. K.
• Romanovskiy, V.
• Rudolph, M. S.
• Sadek, R.
• Schmitt, S.
• Sergi, A.
• Shangase, D. M.
• Shupperd, J. D.
• Simone, S.
• Solovyev, I.
• Song, Y.
• Steinkamp, O.
• Sun, Y.
• Thompson, D. J. D.
• T’Jampens, S.
• Vagnoni, V.
• Valls Canudas, N.
• Velthuis, J. J.
• Wang, X.
• Wang, X. W.
• Wiedner, D.
• Wotton, S. A.
• Wyllie, K.
• Xu, Z.
• Zhang, L.

Titel

Amplitude analysis and branching fraction measurement of B+→D∗−Ds+π+ decays

Ist Teil von

• The journal of high energy physics, 2024-08, Vol.2024 (8), p.165

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2024

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• A bstract The decays of the B + meson to the final state D ∗ − D s + π + are studied in proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb − 1 . The ratio of branching fractions of the B + → D ∗ − D s + π + and B 0 → D ∗ − D s + decays is measured to be 0 . 173 ± 0 . 006 ± 0 . 010, where the first uncertainty is statistical and the second is systematic. Using partially reconstructed D s ∗ + → D s + γ and D s + π 0 decays, the ratio of branching fractions between the B + → D ∗ − D s ∗ + π + and B + → D ∗ − D s + π + decays is determined as 1 . 31 ± 0 . 07 ± 0 . 14. An amplitude analysis of the B + → D ∗ − D s + π + decay is performed for the first time, revealing dominant contributions from known excited charm resonances decaying to the D * − π + final state. No significant evidence of exotic contributions in the D s + π + or D ∗ − D s + channels is found. The fit fraction of the scalar state T c s ¯ 0 ∗ 2900 + + observed in the B + → D − D s + π + decay is determined to be less than 2.3% at a 90% confidence level.