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Электронный каталог: Hayrapetyan, A. - Observation of the Rare Decay of the *h Meson to Four Muons
Hayrapetyan, A. - Observation of the Rare Decay of the *h Meson to Four Muons
Статья
Автор: Hayrapetyan, A.
Physical Review Letters [Electronic resource]: Observation of the Rare Decay of the *h Meson to Four Muons
б.г.
ISBN отсутствует
Автор: Hayrapetyan, A.
Physical Review Letters [Electronic resource]: Observation of the Rare Decay of the *h Meson to Four Muons
б.г.
ISBN отсутствует
На полку
Статья
Hayrapetyan, A.
Observation of the Rare Decay of the *h Meson to Four Muons / A.Hayrapetyan, S.Afanasiev, D.Budkouski, I.Golutvin, I.Gorbunov, V.Karjavine, V.Korenkov, A.Lanev, A.Malakhov, V.Matveev, V.Palichik, V.Perelygin, M.Savina, V.Shalaev, S.Shmatov, S.Shulha, V.Smirnov, O.Teryaev, N.Voytishin, B.S.Yuldashev, A.Zarubin, I.Zhizhin, N.Krasnikov, Z.Tsamalaidze, [CMS Collab.] // Physical Review Letters [Electronic resource]. – 2023. – Vol.131, No.9. – P. 091903. – URL: https://doi.org/10.1103/PhysRevLett.131.091903. – Bibliogr.: 33.
A search for the rare *h *> *m*+*m*-*m*+*m*- double-Dalitz decay is performed using a sample of proton-proton collisions, collected by the CMS experiment at the CERN LHC with high-rate muon triggers during 2017 and 2018 and corresponding to an integrated luminosity of 101 fb*−*1. A signal having a statistical significance well in excess of 5 standard deviations is observed. Using the *h *> *m*+*m*- decay as normalization, the branching fraction B(*h *> *m*+*m*-*m*+*m*-) = [5.0 *( 0.8(stat) 0.7(syst) *( 0.7(B&sub(2*m))]×10*−*9 is measured, where the last term is the uncertainty in the normalization channel branching fraction. This work achieves an improved precision of over 5 orders of magnitude compared to previous results, leading to the first measurement of this branching fraction, which is found to agree with theoretical predictions.
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 346.6 - Резонансы и новые частицы
ОИЯИ = ОИЯИ (JINR)2023
Hayrapetyan, A.
Observation of the Rare Decay of the *h Meson to Four Muons / A.Hayrapetyan, S.Afanasiev, D.Budkouski, I.Golutvin, I.Gorbunov, V.Karjavine, V.Korenkov, A.Lanev, A.Malakhov, V.Matveev, V.Palichik, V.Perelygin, M.Savina, V.Shalaev, S.Shmatov, S.Shulha, V.Smirnov, O.Teryaev, N.Voytishin, B.S.Yuldashev, A.Zarubin, I.Zhizhin, N.Krasnikov, Z.Tsamalaidze, [CMS Collab.] // Physical Review Letters [Electronic resource]. – 2023. – Vol.131, No.9. – P. 091903. – URL: https://doi.org/10.1103/PhysRevLett.131.091903. – Bibliogr.: 33.
A search for the rare *h *> *m*+*m*-*m*+*m*- double-Dalitz decay is performed using a sample of proton-proton collisions, collected by the CMS experiment at the CERN LHC with high-rate muon triggers during 2017 and 2018 and corresponding to an integrated luminosity of 101 fb*−*1. A signal having a statistical significance well in excess of 5 standard deviations is observed. Using the *h *> *m*+*m*- decay as normalization, the branching fraction B(*h *> *m*+*m*-*m*+*m*-) = [5.0 *( 0.8(stat) 0.7(syst) *( 0.7(B&sub(2*m))]×10*−*9 is measured, where the last term is the uncertainty in the normalization channel branching fraction. This work achieves an improved precision of over 5 orders of magnitude compared to previous results, leading to the first measurement of this branching fraction, which is found to agree with theoretical predictions.
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 346.6 - Резонансы и новые частицы
ОИЯИ = ОИЯИ (JINR)2023
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