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Observation of an a_{0}-like State with Mass of 1.817 GeV in the Study of D_{s}^{+}→K_{S}^{0}K^{+}π^{0} Decays. / BESIII Collaboration ; Николаев, Иван Борисович; Мучной, Николай Юрьевич.

In: Physical Review Letters, Vol. 129, No. 18, 28.10.2022, p. 182001.

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BESIII Collaboration, Николаев ИБ, Мучной НЮ. Observation of an a_{0}-like State with Mass of 1.817 GeV in the Study of D_{s}^{+}→K_{S}^{0}K^{+}π^{0} Decays. Physical Review Letters. 2022 Oct 28;129(18):182001. doi: 10.1103/PhysRevLett.129.182001

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@article{a8d2052194334bcc8eb0bee4527f929f,
title = "Observation of an a_{0}-like State with Mass of 1.817 GeV in the Study of D_{s}^{+}→K_{S}^{0}K^{+}π^{0} Decays",
abstract = "Using e^{+}e^{-} annihilation data corresponding to an integrated luminosity of 6.32  fb^{-1} collected at center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform the first amplitude analysis of the decay D_{s}^{+}→K_{S}^{0}K^{+}π^{0} and determine the relative branching fractions and phases for intermediate processes. We observe an a_{0}-like state with mass of 1.817 GeV in its decay to K_{S}^{0}K^{+} for the first time. In addition, we measure the ratio {B[D_{s}^{+}→K[over ¯]^{*}(892)^{0}K^{+}]/B[D_{s}^{+}→K[over ¯]^{0}K^{*}(892)^{+}]} to be 2.35_{-0.23stat}^{+0.42}±0.10_{syst}. Finally, we provide a precision measurement of the absolute branching fraction B(D_{s}^{+}→K_{S}^{0}K^{+}π^{0})=(1.46±0.06_{stat}±0.05_{syst})%.",
author = "{BESIII Collaboration} and Achasov, {M N} and Y Pan and Николаев, {Иван Борисович} and Мучной, {Николай Юрьевич}",
note = "Observation of an a0 -like State with Mass of 1.817 GeV in the Study of Ds+→KS0K+π0 Decays / BESIII Collaboration // Physical Review Letters. – 2022. – Vol. 129, No. 18. – P. 182001. – DOI 10.1103/physrevlett.129.182001. ",
year = "2022",
month = oct,
day = "28",
doi = "10.1103/PhysRevLett.129.182001",
language = "English",
volume = "129",
pages = "182001",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "18",

}

RIS

TY - JOUR

T1 - Observation of an a_{0}-like State with Mass of 1.817 GeV in the Study of D_{s}^{+}→K_{S}^{0}K^{+}π^{0} Decays

AU - BESIII Collaboration

AU - Achasov, M N

AU - Pan, Y

AU - Николаев, Иван Борисович

AU - Мучной, Николай Юрьевич

N1 - Observation of an a0 -like State with Mass of 1.817 GeV in the Study of Ds+→KS0K+π0 Decays / BESIII Collaboration // Physical Review Letters. – 2022. – Vol. 129, No. 18. – P. 182001. – DOI 10.1103/physrevlett.129.182001.

PY - 2022/10/28

Y1 - 2022/10/28

N2 - Using e^{+}e^{-} annihilation data corresponding to an integrated luminosity of 6.32  fb^{-1} collected at center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform the first amplitude analysis of the decay D_{s}^{+}→K_{S}^{0}K^{+}π^{0} and determine the relative branching fractions and phases for intermediate processes. We observe an a_{0}-like state with mass of 1.817 GeV in its decay to K_{S}^{0}K^{+} for the first time. In addition, we measure the ratio {B[D_{s}^{+}→K[over ¯]^{*}(892)^{0}K^{+}]/B[D_{s}^{+}→K[over ¯]^{0}K^{*}(892)^{+}]} to be 2.35_{-0.23stat}^{+0.42}±0.10_{syst}. Finally, we provide a precision measurement of the absolute branching fraction B(D_{s}^{+}→K_{S}^{0}K^{+}π^{0})=(1.46±0.06_{stat}±0.05_{syst})%.

AB - Using e^{+}e^{-} annihilation data corresponding to an integrated luminosity of 6.32  fb^{-1} collected at center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform the first amplitude analysis of the decay D_{s}^{+}→K_{S}^{0}K^{+}π^{0} and determine the relative branching fractions and phases for intermediate processes. We observe an a_{0}-like state with mass of 1.817 GeV in its decay to K_{S}^{0}K^{+} for the first time. In addition, we measure the ratio {B[D_{s}^{+}→K[over ¯]^{*}(892)^{0}K^{+}]/B[D_{s}^{+}→K[over ¯]^{0}K^{*}(892)^{+}]} to be 2.35_{-0.23stat}^{+0.42}±0.10_{syst}. Finally, we provide a precision measurement of the absolute branching fraction B(D_{s}^{+}→K_{S}^{0}K^{+}π^{0})=(1.46±0.06_{stat}±0.05_{syst})%.

UR - https://pubmed.ncbi.nlm.nih.gov/36374689/

UR - https://www.elibrary.ru/item.asp?id=57288329

U2 - 10.1103/PhysRevLett.129.182001

DO - 10.1103/PhysRevLett.129.182001

M3 - Article

C2 - 36374689

VL - 129

SP - 182001

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 18

ER -

ID: 68334688