scholarly journals Improved measurements of the absolute branching fractions of the inclusive decays D+(0)→ϕX

2019 ◽  
Vol 100 (7) ◽  
Author(s):  
M. Ablikim ◽  
M. N. Achasov ◽  
P. Adlarson ◽  
S. Ahmed ◽  
M. Albrecht ◽  
...  
Keyword(s):  
Branching Fractions ◽  
Inclusive Decays ◽  
The Absolute

Recent Results of D Physics on BESII

2006 ◽  
Vol 21 (27) ◽  
pp. 5430-5435
Author(s):  
◽  
Hai Long Ma
Keyword(s):  
D Mesons ◽  
Semileptonic Decay ◽  
Branching Fractions ◽  
Semileptonic Decays ◽  
Decay Rates ◽  
Inclusive Decays ◽  
The Absolute

Based on the data sample of 33 pb-1 collected at and around 3.773 GeV with the BESII detector at the BEPC collider, the absolute branching fractions for some exclusive semileptonic decays and inclusive decays of D mesons have been measured. With the measured branching fractions, the ratio of the two partial widths of the decays D0 → K-μ+νμ and [Formula: see text] is determined to be 0.87 ± 0.24 ± 0.15, which supports that the isospin conversation holds in the exclusive semimuonic decays of D0 and D- mesons. The ratio of the vector to pseudoscalar semileptonic decay rates [Formula: see text] is determined to be 0.57 ± 0.17 ± 0.02.

scholarly journals Measurements of the absolute branching fractions of B+→Xcc¯K+ and B+→D¯(*)0π+ at Belle

2018 ◽  
Vol 97 (1) ◽  
Author(s):  
Y. Kato ◽  
T. Iijima ◽  
I. Adachi ◽  
H. Aihara ◽  
S. Al Said ◽  
...  
Keyword(s):  
Branching Fractions ◽  
The Absolute

scholarly journals Measurements of the absolute branching fractions of D0(+)→KK¯ππ decays

2020 ◽  
Vol 102 (5) ◽  
Author(s):  
M. Ablikim ◽  
M. N. Achasov ◽  
P. Adlarson ◽  
S. Ahmed ◽  
M. Albrecht ◽  
...  
Keyword(s):  
Branching Fractions ◽  
The Absolute

scholarly journals Measurement of the absolute branching fractions of J/ψ→γη and η decay modes

2021 ◽  
Vol 104 (9) ◽  
Author(s):  
M. Ablikim ◽  
M. N. Achasov ◽  
P. Adlarson ◽  
S. Ahmed ◽  
M. Albrecht ◽  
...  
Keyword(s):  
Branching Fractions ◽  
Decay Modes ◽  
The Absolute

scholarly journals Measurement of the absolute branching fraction of the inclusive decay $$\Lambda _c^+ \rightarrow K_S^0X$$

2020 ◽  
Vol 80 (10) ◽  
Author(s):  
M. Ablikim ◽  
M. N. Achasov ◽  
P. Adlarson ◽  
S. Ahmed ◽  
M. Albrecht ◽  
...  
Keyword(s):  
Branching Fraction ◽  
Branching Fractions ◽  
Relative Deviation ◽  
Final State ◽  
Decay Modes ◽  
The Absolute ◽  
Inclusive Decay ◽  
Integrated Luminosity

AbstractWe report the first measurement of the absolute branching fraction of the inclusive decay $$\Lambda _c^+ \rightarrow K_S^0X$$ Λ c + → K S 0 X . The analysis is performed using an $$e^+e^-$$ e + e - collision data sample corresponding to an integrated luminosity of 567 $$\hbox {pb}^{-1}$$ pb - 1 taken at $$\sqrt{s}$$ s = 4.6 GeV with the BESIII detector. Using eleven Cabibbo-favored $${\bar{\Lambda }}_c^-$$ Λ ¯ c - decay modes and the double-tag technique, this absolute branching fraction is measured to be $${\mathcal {B}}(\Lambda _c^+ \rightarrow K_S^0X)=(9.9\pm 0.6\pm 0.4)\%$$ B ( Λ c + → K S 0 X ) = ( 9.9 ± 0.6 ± 0.4 ) % , where the first uncertainty is statistical and the second systematic. The relative deviation between the branching fractions for the inclusive decay and the observed exclusive decays is $$(18.7\pm 8.3)\%$$ ( 18.7 ± 8.3 ) % , which indicates that there may be some unobserved decay modes with a neutron or excited baryons in the final state.

scholarly journals Λc Physics at BESIII

2018 ◽  
Vol 46 ◽  
pp. 1860064
Author(s):  
Giulio Mezzadri
Keyword(s):  
Pair Production ◽  
Branching Fractions ◽  
Semileptonic Decays ◽  
Hadronic Decays ◽  
Charmed Baryons ◽  
Production Threshold ◽  
The Absolute ◽  
Inclusive Decay ◽  
First Time

In 2014 BESIII collected a data sample of 567 [Formula: see text] at [Formula: see text] = 4.6 GeV, which is just above the [Formula: see text] pair production threshold. By analyzing this data sample, we have measured the absolute branching fractions for many decays of [Formula: see text] for the first time. These decays include the semileptonic decays of [Formula: see text], [Formula: see text], the hadronic decays of [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] and inclusive decay [Formula: see text] + anything. The decays of [Formula: see text], [Formula: see text] and [Formula: see text] are observed for the first time and the others are measured with significantly improved precision. These results are important to benefit the development of the related theories, and provide important inputs for both charmed baryons and [Formula: see text] physics.

scholarly journals New results on charmonium like states at Belle

2019 ◽  
Vol 199 ◽  
pp. 04006
Author(s):  
Kavita Lalwani
Keyword(s):  
Pair Production ◽  
Branching Fractions ◽  
Open Charm ◽  
Initial State Radiation ◽  
Initial State ◽  
Angular Analysis ◽  
State Radiation ◽  
Belle Experiment ◽  
The Absolute

New results on charmonium-like states measured by the Belle experiment at the KEKB asymmetric e+e- collider are presented, in particular (a) Search for the Zc pair production in $\Upsilon (1{\rm{S}}),\,\Upsilon (2S)$ decays and in e+e- $\sqrt s $ of 10.52, 10.58, and 10.867 GeV. (b) Measurement of the absolute branching fractions of ${B^ + } \to {X_{c\overline c }}{K^ + }$ decays. (c) Observation of Ξc(2930)0 in the updated measurement of ${B^ - } \to {K^ - }{\Lambda _c}{\overline \Lambda _{\overline c }}.$ (d) Angular analysis of ${e^ + }{e^ - } \to {D^{(*) \pm }}{D^{* \mp }}$ process near the open charm threshold using initial state radiation.

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