Observation of the semileptonic decays $$ {\textrm{D}}^0\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{-}{\pi}^0{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$ and $$ {\textrm{D}}^{+}\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{+}{\pi}^{-}{\textrm{e}}^{+}{\nu}

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Observation of the semileptonic decays $$ {\textrm{D}}^0\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{-}{\pi}^0{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$ and $$ {\textrm{D}}^{+}\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{+}{\pi}^{-}{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$. / The BESIII Collaboration ; Мучной, Николай Юрьевич.

в: Journal of High Energy Physics, Том 2024, № 9, 89, 17.09.2024.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

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@article{b874f6a8743544dab8e8f1bfd67126ef,

title = "Observation of the semileptonic decays $$ {\textrm{D}}^0\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{-}{\pi}^0{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$ and $$ {\textrm{D}}^{+}\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{+}{\pi}^{-}{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$",

abstract = "By analyzing e+e− annihilation data corresponding to an integrated luminosity of 2.93 fb−1 collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the semileptonic decays D0→KS0π−π0e+νe and D+→KS0π+π−e+νe is reported. In the hypothesis that all events correspond to K1(1270) decays, the branching fractions are measured to be BD0→K11270−→KS0π−π0e+νe=1.69−0.46+0.53±0.15×10−4 and BD+→K¯112700→KS0π+π−e+νe=1.47−0.40+0.45±0.14×10−4 with statistical significance of 5.4σ and 5.6σ, respectively. When combined with measurements of the K1(1270) → K+π−π decays, the absolute branching fractions are determined to be BD0→K11270−e+νe=1.08−0.13−0.10+0.14+0.08±0.21×10−3 and BD+→K¯112700e+νe=1.70−0.23+0.26±0.13±0.35×10−3. The first and second uncertainties are statistical and systematic, respectively, and the third uncertainties originate from the assumed branching fractions of the K1(1270) → Kππ decays.",

author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. n.} and P. Adlarson and Ai, {X. c.} and R. Aliberti and A. Amoroso and An, {M. r.} and Q. An and Y. Bai and O. Bakina and I. Balossino and Y. Ban and V. Batozskaya and K. Begzsuren and N. Berger and M. Berlowski and M. Bertani and D. Bettoni and F. Bianchi and E. Bianco and A. Bortone and Briere, {R. a.} and A. Brueggemann and H. Cai and X. Cai and A. Calcaterra and Cao, {G. f.} and N. Cao and Nikolaev, {I. b.} and Мучной, {Николай Юрьевич}",

year = "2024",

month = sep,

day = "17",

doi = "10.1007/JHEP09(2024)089",

language = "English",

volume = "2024",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer US",

number = "9",

}

RIS

TY - JOUR

T1 - Observation of the semileptonic decays $$ {\textrm{D}}^0\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{-}{\pi}^0{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$ and $$ {\textrm{D}}^{+}\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{+}{\pi}^{-}{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Adlarson, P.

AU - Ai, X. c.

AU - Aliberti, R.

AU - Amoroso, A.

AU - An, M. r.

AU - An, Q.

AU - Bai, Y.

AU - Bakina, O.

AU - Balossino, I.

AU - Ban, Y.

AU - Batozskaya, V.

AU - Begzsuren, K.

AU - Berger, N.

AU - Berlowski, M.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Bianco, E.

AU - Bortone, A.

AU - Briere, R. a.

AU - Brueggemann, A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. f.

AU - Cao, N.

AU - Nikolaev, I. b.

AU - Мучной, Николай Юрьевич

PY - 2024/9/17

Y1 - 2024/9/17

N2 - By analyzing e+e− annihilation data corresponding to an integrated luminosity of 2.93 fb−1 collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the semileptonic decays D0→KS0π−π0e+νe and D+→KS0π+π−e+νe is reported. In the hypothesis that all events correspond to K1(1270) decays, the branching fractions are measured to be BD0→K11270−→KS0π−π0e+νe=1.69−0.46+0.53±0.15×10−4 and BD+→K¯112700→KS0π+π−e+νe=1.47−0.40+0.45±0.14×10−4 with statistical significance of 5.4σ and 5.6σ, respectively. When combined with measurements of the K1(1270) → K+π−π decays, the absolute branching fractions are determined to be BD0→K11270−e+νe=1.08−0.13−0.10+0.14+0.08±0.21×10−3 and BD+→K¯112700e+νe=1.70−0.23+0.26±0.13±0.35×10−3. The first and second uncertainties are statistical and systematic, respectively, and the third uncertainties originate from the assumed branching fractions of the K1(1270) → Kππ decays.

AB - By analyzing e+e− annihilation data corresponding to an integrated luminosity of 2.93 fb−1 collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the semileptonic decays D0→KS0π−π0e+νe and D+→KS0π+π−e+νe is reported. In the hypothesis that all events correspond to K1(1270) decays, the branching fractions are measured to be BD0→K11270−→KS0π−π0e+νe=1.69−0.46+0.53±0.15×10−4 and BD+→K¯112700→KS0π+π−e+νe=1.47−0.40+0.45±0.14×10−4 with statistical significance of 5.4σ and 5.6σ, respectively. When combined with measurements of the K1(1270) → K+π−π decays, the absolute branching fractions are determined to be BD0→K11270−e+νe=1.08−0.13−0.10+0.14+0.08±0.21×10−3 and BD+→K¯112700e+νe=1.70−0.23+0.26±0.13±0.35×10−3. The first and second uncertainties are statistical and systematic, respectively, and the third uncertainties originate from the assumed branching fractions of the K1(1270) → Kππ decays.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85205227293&origin=inward&txGid=52715598ce41be20574e0c6a6dab40d4

U2 - 10.1007/JHEP09(2024)089

DO - 10.1007/JHEP09(2024)089

M3 - Article

VL - 2024

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 9

M1 - 89

ER -

ID: 62704722

Observation of the semileptonic decays $$ {\textrm{D}}^0\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{-}{\pi}^0{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$ and $$ {\textrm{D}}^{+}\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{+}{\pi}^{-}{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$

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