Observation of the decay Λc+→Σ−π+π+π0 /M. Ablikim, M. N. Achasov, S. Ahmed [et al.]

Электронный ресурс
Другой Автор
Achasov, M. N.
Ahmed, S.
Chelkov, G. A.
Ablikim, M.
Источник
Physics Letters B 2017 Vol. 772. P. 388-393
Аннотация
We report the first observation of the decay Λc+→Σ−π+π+π0, based on data obtained in e+e− annihilations with an integrated luminosity of 567 pb−1 at s=4.6GeV. The data were collected with the BESIII detector at the BEPCII storage rings. The absolute branching fraction B(Λc+→Σ−π+π+π0) is determined to be (2.11±0.33(stat.)±0.14(syst.))%. In addition, an improved measurement of B(Λ+c→Σ−π+π+) is determined as (1.81±0.17(stat.)±0.09(syst.))%.
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$a Observation of the decay Λc+→Σ−π+π+π0 $c M. Ablikim, M. N. Achasov, S. Ahmed [et al.]
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$a We report the first observation of the decay Λc+→Σ−π+π+π0, based on data obtained in e+e− annihilations with an integrated luminosity of 567 pb−1 at s=4.6GeV. The data were collected with the BESIII detector at the BEPCII storage rings. The absolute branching fraction B(Λc+→Σ−π+π+π0) is determined to be (2.11±0.33(stat.)±0.14(syst.))%. In addition, an improved measurement of B(Λ+c→Σ−π+π+) is determined as (1.81±0.17(stat.)±0.09(syst.))%.
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$a статьи в журналах
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$a Achasov, M. N.
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$a Ahmed, S.
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$a Chelkov, G. A.
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$a Ablikim, M.
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$t Physics Letters B $d 2017 $g Vol. 772. P. 388-393 $x 0370-2693
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статьи в журналах
Резюме
We report the first observation of the decay Λc+→Σ−π+π+π0, based on data obtained in e+e− annihilations with an integrated luminosity of 567 pb−1 at s=4.6GeV. The data were collected with the BESIII detector at the BEPCII storage rings. The absolute branching fraction B(Λc+→Σ−π+π+π0) is determined to be (2.11±0.33(stat.)±0.14(syst.))%. In addition, an improved measurement of B(Λ+c→Σ−π+π+) is determined as (1.81±0.17(stat.)±0.09(syst.))%.