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Электронный каталог: Ablikim, M. - Observation of a Rare Beta Decay of the Charmed Baryon with a Graph Neural Network
Ablikim, M. - Observation of a Rare Beta Decay of the Charmed Baryon with a Graph Neural Network
Статья
Автор: Ablikim, M.
Nature Communications: Observation of a Rare Beta Decay of the Charmed Baryon with a Graph Neural Network
б.г.
ISBN отсутствует
Автор: Ablikim, M.
Nature Communications: Observation of a Rare Beta Decay of the Charmed Baryon with a Graph Neural Network
б.г.
ISBN отсутствует
На полку
Статья
Ablikim, M.
Observation of a Rare Beta Decay of the Charmed Baryon with a Graph Neural Network / M.Ablikim, O.Bakina, I.Boyko, G.Chelkov, D.Dedovich, I.Denysenko, P.Egorov, A.Guskov, Y.Nefedov, A.Sarantsev, A.Zhemchugov, [a.o.]. – Text: electronic // Nature Communications. – 2025. – Vol. 16. – P. 681. – URL: https://doi.org/10.1038/s41467-024-55042-y. – Bibliogr.: 78.
The beta decay of the lightest charmed baryon Λ*+&sub(c) provides unique insights into the fundamental mechanism of strong and electro-weak interactions, serving as a testbed for investigating non-perturbative quantum chromodynamics and constraining the Cabibbo-Kobayashi-Maskawa (CKM) matrix parameters. This article presents the first observation of the Cabibbosuppressed decay Λ*+&sub(c) *>ne*+*n&sub(e), utilizing 4.5 fb*−*1 of electron-positron annihilation data collected with the BESIII detector. A novel Graph Neural Network based technique effectively separates signals from dominant backgrounds, notably Λ*+&sub(c)*> Λe*+ν&sub(e), achieving a statistical significance exceeding 10σ. The absolute branching fraction is measured to be (3.57 ± 0.34&sub(stat.) ± 0.14&sub(syst.)) × 10*−*3. For the first time, the CKM matrix element ∣Vcd∣ is extracted via a charmed baryon decay as 0.208 ± 0.011&sub(exp)± 0.007&sub(LQCD)± 0.001&sub(τΛ*+&sub(c) . This work highlights a new approach to further understand fundamental interactions in the charmed baryon sector, and showcases the power of modern machine learning techniques in experimental high-energy physics.
ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 341.1б - Бета-распад и К-захват. Схемы распада и спектры
Спец.(статьи,препринты) = С 325.1а - Нейронные сети и клеточные автоматы
Ablikim, M.
Observation of a Rare Beta Decay of the Charmed Baryon with a Graph Neural Network / M.Ablikim, O.Bakina, I.Boyko, G.Chelkov, D.Dedovich, I.Denysenko, P.Egorov, A.Guskov, Y.Nefedov, A.Sarantsev, A.Zhemchugov, [a.o.]. – Text: electronic // Nature Communications. – 2025. – Vol. 16. – P. 681. – URL: https://doi.org/10.1038/s41467-024-55042-y. – Bibliogr.: 78.
The beta decay of the lightest charmed baryon Λ*+&sub(c) provides unique insights into the fundamental mechanism of strong and electro-weak interactions, serving as a testbed for investigating non-perturbative quantum chromodynamics and constraining the Cabibbo-Kobayashi-Maskawa (CKM) matrix parameters. This article presents the first observation of the Cabibbosuppressed decay Λ*+&sub(c) *>ne*+*n&sub(e), utilizing 4.5 fb*−*1 of electron-positron annihilation data collected with the BESIII detector. A novel Graph Neural Network based technique effectively separates signals from dominant backgrounds, notably Λ*+&sub(c)*> Λe*+ν&sub(e), achieving a statistical significance exceeding 10σ. The absolute branching fraction is measured to be (3.57 ± 0.34&sub(stat.) ± 0.14&sub(syst.)) × 10*−*3. For the first time, the CKM matrix element ∣Vcd∣ is extracted via a charmed baryon decay as 0.208 ± 0.011&sub(exp)± 0.007&sub(LQCD)± 0.001&sub(τΛ*+&sub(c) . This work highlights a new approach to further understand fundamental interactions in the charmed baryon sector, and showcases the power of modern machine learning techniques in experimental high-energy physics.
ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 341.1б - Бета-распад и К-захват. Схемы распада и спектры
Спец.(статьи,препринты) = С 325.1а - Нейронные сети и клеточные автоматы
