Amplitude analysis of Ds+ →π+π0η and first observation of the W-annihilation dominant decays Ds+ →a0 (980)+π0 and Ds+ →a0 (980)0π+

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Amplitude analysis of Ds+ →π+π0η and first observation of the W-annihilation dominant decays Ds+ →a0 (980)+π0 and Ds+ →a0 (980)0π+. / BESIII Collaboration.

In: Physical Review Letters, Vol. 123, No. 11, 112001, 13.09.2019.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{188a53ec224642f2be361aa23084b8b7,

title = "Amplitude analysis of Ds+ →π+π0η and first observation of the W-annihilation dominant decays Ds+ →a0 (980)+π0 and Ds+ →a0 (980)0π+",

abstract = "We present the first amplitude analysis of the decay Ds+→π+π0η. We use an e+e-collision data sample corresponding to an integrated luminosity of 3.19 fb-1 collected with the BESIII detector at a center-of-mass energy of 4.178 GeV. We observe for the first time the W-annihilation dominant decays Ds+→a0(980)+π0 and Ds+→a0(980)0π+. We measure the absolute branching fraction B(Ds+→a0(980)+(0)π0(+),a0(980)+(0)→π+(0)η)=(1.46±0.15stat±0.23sys)%, which is larger than the branching fractions of other measured pure W-annihilation decays by at least one order of magnitude. In addition, we measure the branching fraction of Ds+→π+π0η with significantly improved precision.",

author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and S. Ahmed and M. Albrecht and M. Alekseev and A. Amoroso and An, {F. F.} and Q. An and Bai, {J. Z.} and Y. Bai and O. Bakina and {Baldini Ferroli}, R. and Y. Ban and K. Begzsuren and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and E. Boger and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and A. Calcaterra and Cao, {G. F.} and N. Cao and Cetin, {S. A.} and J. Chai and Chang, {J. F.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and W. Cheng and Chu, {X. K.} and G. Cibinetto and F. Cossio and Cui, {X. F.} and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and D. Dedovich and Deng, {Z. Y.} and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",

year = "2019",

month = sep,

day = "13",

doi = "10.1103/PhysRevLett.123.112001",

language = "English",

volume = "123",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "11",

}

RIS

TY - JOUR

T1 - Amplitude analysis of Ds+ →π+π0η and first observation of the W-annihilation dominant decays Ds+ →a0 (980)+π0 and Ds+ →a0 (980)0π+

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Alekseev, M.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Bai, Y.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Boger, E.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cao, N.

AU - Cetin, S. A.

AU - Chai, J.

AU - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, W.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Cui, X. F.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

PY - 2019/9/13

Y1 - 2019/9/13

N2 - We present the first amplitude analysis of the decay Ds+→π+π0η. We use an e+e-collision data sample corresponding to an integrated luminosity of 3.19 fb-1 collected with the BESIII detector at a center-of-mass energy of 4.178 GeV. We observe for the first time the W-annihilation dominant decays Ds+→a0(980)+π0 and Ds+→a0(980)0π+. We measure the absolute branching fraction B(Ds+→a0(980)+(0)π0(+),a0(980)+(0)→π+(0)η)=(1.46±0.15stat±0.23sys)%, which is larger than the branching fractions of other measured pure W-annihilation decays by at least one order of magnitude. In addition, we measure the branching fraction of Ds+→π+π0η with significantly improved precision.

AB - We present the first amplitude analysis of the decay Ds+→π+π0η. We use an e+e-collision data sample corresponding to an integrated luminosity of 3.19 fb-1 collected with the BESIII detector at a center-of-mass energy of 4.178 GeV. We observe for the first time the W-annihilation dominant decays Ds+→a0(980)+π0 and Ds+→a0(980)0π+. We measure the absolute branching fraction B(Ds+→a0(980)+(0)π0(+),a0(980)+(0)→π+(0)η)=(1.46±0.15stat±0.23sys)%, which is larger than the branching fractions of other measured pure W-annihilation decays by at least one order of magnitude. In addition, we measure the branching fraction of Ds+→π+π0η with significantly improved precision.

UR - http://www.scopus.com/inward/record.url?scp=85072725012&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.123.112001

DO - 10.1103/PhysRevLett.123.112001

M3 - Article

C2 - 31573268

AN - SCOPUS:85072725012

VL - 123

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 11

M1 - 112001

ER -

ID: 23380714