Observation of a New Excited Ds+ Meson in B0 →d-D+K+π-Decays

R. Aaij; C. Abellan Beteta; T. Ackernley; B. Adeva; M. Adinolfi; H. Afsharnia; C. A. Aidala; S. Aiola; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; A. Alfonso Albero; Z. Aliouche; G. Alkhazov; P. Alvarez Cartelle; S. Amato; Y. Amhis; L. An; L. Anderlini; A. Andreianov; M. Andreotti; F. Archilli; A. Artamonov; M. Artuso; K. Arzymatov; E. Aslanides; M. Atzeni; B. Audurier; S. Bachmann; M. Bachmayer; J. J. Back; S. Baker; P. Baladron Rodriguez; V Balagura; W. Baldini; J. Baptista Leite; R. J. Barlow; S. Barsuk; W. Barter; M. Bartolini; F. Baryshnikov; J. M. Basels; G. Bassi; B. Batsukh; A. Battig; A. Bay; M. Becker; F. Bedeschi; LHCb collaboration; Jacco de Vries; Marcel Merk; Chris Pawley

doi:10.1103/PhysRevLett.126.122002

Observation of a New Excited Ds+ Meson in B0 →d-D+K+π-Decays

R. Aaij^*
, C. Abellan Beteta
, T. Ackernley
, B. Adeva
, M. Adinolfi
, H. Afsharnia
, C. A. Aidala
, S. Aiola
, Z. Ajaltouni
, S. Akar
, J. Albrecht
, F. Alessio
, M. Alexander
, A. Alfonso Albero
, Z. Aliouche
, G. Alkhazov
, P. Alvarez Cartelle
, S. Amato
, Y. Amhis
, L. An

L. Anderlini, A. Andreianov, M. Andreotti, F. Archilli, A. Artamonov, M. Artuso, K. Arzymatov, E. Aslanides, M. Atzeni, B. Audurier, S. Bachmann, M. Bachmayer, J. J. Back, S. Baker, P. Baladron Rodriguez, V Balagura, W. Baldini, J. Baptista Leite, R. J. Barlow, S. Barsuk, W. Barter, M. Bartolini, F. Baryshnikov, J. M. Basels, G. Bassi, B. Batsukh, A. Battig, A. Bay, M. Becker, F. Bedeschi, LHCb collaboration, Jacco de Vries, Marcel Merk, Chris Pawley

^*Corresponding author for this work

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

Abstract

Using pp collision data corresponding to an integrated luminosity of 5.4 fb-1 collected with the LHCb detector at a center-of-mass energy of 13 TeV, the B0→D-D+K+π-decay is studied. A new excited Ds+ meson is observed decaying into the D+K+π-final state with large statistical significance. The pole mass and width, and the spin parity of the new state are measured with an amplitude analysis to be mR=2591±6±7 MeV, ΓR=89±16±12 MeV, and JP=0-, where the first uncertainty is statistical and the second systematic. Fit fractions for all components in the amplitude analysis are also reported. The new resonance, denoted as Ds0(2590)+, is a strong candidate to be the Ds(2S10)+ state, the radial excitation of the pseudoscalar ground-state Ds+ meson.

Original language	English
Article number	122002
Number of pages	11
Journal	Physical Review Letters
Volume	126
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.126.122002
Publication status	Published - 26 Mar 2021

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Aaij, R., Beteta, C. A., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C. A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Albero, A. A., Aliouche, Z., Alkhazov, G., Cartelle, P. A., Amato, S., Amhis, Y., ... Pawley, C. (2021). Observation of a New Excited Ds+ Meson in B0 →d-D+K+π-Decays. Physical Review Letters, 126(12), Article 122002. https://doi.org/10.1103/PhysRevLett.126.122002

@article{81409227101b499281b79cfe9cc246b6,

title = "Observation of a New Excited Ds+ Meson in B0 →d-D+K+π-Decays",

abstract = "Using pp collision data corresponding to an integrated luminosity of 5.4 fb-1 collected with the LHCb detector at a center-of-mass energy of 13 TeV, the B0→D-D+K+π-decay is studied. A new excited Ds+ meson is observed decaying into the D+K+π-final state with large statistical significance. The pole mass and width, and the spin parity of the new state are measured with an amplitude analysis to be mR=2591±6±7 MeV, ΓR=89±16±12 MeV, and JP=0-, where the first uncertainty is statistical and the second systematic. Fit fractions for all components in the amplitude analysis are also reported. The new resonance, denoted as Ds0(2590)+, is a strong candidate to be the Ds(2S10)+ state, the radial excitation of the pseudoscalar ground-state Ds+ meson.",

keywords = "TOOL",

author = "R. Aaij and Beteta, \{C. Abellan\} and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and Aidala, \{C. A.\} and S. Aiola and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and Albero, \{A. Alfonso\} and Z. Aliouche and G. Alkhazov and Cartelle, \{P. Alvarez\} and S. Amato and Y. Amhis and L. An and L. Anderlini and A. Andreianov and M. Andreotti and F. Archilli and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and S. Baker and Rodriguez, \{P. Baladron\} and V Balagura and W. Baldini and Leite, \{J. Baptista\} and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and Basels, \{J. M.\} and G. Bassi and B. Batsukh and A. Battig and A. Bay and M. Becker and F. Bedeschi and \{LHCb collaboration\} and \{de Vries\}, Jacco and Marcel Merk and Chris Pawley",

year = "2021",

month = mar,

day = "26",

doi = "10.1103/PhysRevLett.126.122002",

language = "English",

volume = "126",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

}

Aaij, R, Beteta, CA, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Albero, AA, Aliouche, Z, Alkhazov, G, Cartelle, PA, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baker, S, Rodriguez, PB, Balagura, V, Baldini, W, Leite, JB, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, Bassi, G, Batsukh, B, Battig, A, Bay, A, Becker, M, Bedeschi, F, LHCb collaboration, de Vries, J , Merk, M & Pawley, C 2021, 'Observation of a New Excited Ds+ Meson in B0 →d-D+K+π-Decays', Physical Review Letters, vol. 126, no. 12, 122002. https://doi.org/10.1103/PhysRevLett.126.122002

TY - JOUR

T1 - Observation of a New Excited Ds+ Meson in B0 →d-D+K+π-Decays

AU - Aaij, R.

AU - Beteta, C. Abellan

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Albero, A. Alfonso

AU - Aliouche, Z.

AU - Alkhazov, G.

AU - Cartelle, P. Alvarez

AU - Amato, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Baker, S.

AU - Rodriguez, P. Baladron

AU - Balagura, V

AU - Baldini, W.

AU - Leite, J. Baptista

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Basels, J. M.

AU - Bassi, G.

AU - Batsukh, B.

AU - Battig, A.

AU - Bay, A.

AU - Becker, M.

AU - Bedeschi, F.

AU - LHCb collaboration

AU - de Vries, Jacco

AU - Merk, Marcel

AU - Pawley, Chris

PY - 2021/3/26

Y1 - 2021/3/26

N2 - Using pp collision data corresponding to an integrated luminosity of 5.4 fb-1 collected with the LHCb detector at a center-of-mass energy of 13 TeV, the B0→D-D+K+π-decay is studied. A new excited Ds+ meson is observed decaying into the D+K+π-final state with large statistical significance. The pole mass and width, and the spin parity of the new state are measured with an amplitude analysis to be mR=2591±6±7 MeV, ΓR=89±16±12 MeV, and JP=0-, where the first uncertainty is statistical and the second systematic. Fit fractions for all components in the amplitude analysis are also reported. The new resonance, denoted as Ds0(2590)+, is a strong candidate to be the Ds(2S10)+ state, the radial excitation of the pseudoscalar ground-state Ds+ meson.

AB - Using pp collision data corresponding to an integrated luminosity of 5.4 fb-1 collected with the LHCb detector at a center-of-mass energy of 13 TeV, the B0→D-D+K+π-decay is studied. A new excited Ds+ meson is observed decaying into the D+K+π-final state with large statistical significance. The pole mass and width, and the spin parity of the new state are measured with an amplitude analysis to be mR=2591±6±7 MeV, ΓR=89±16±12 MeV, and JP=0-, where the first uncertainty is statistical and the second systematic. Fit fractions for all components in the amplitude analysis are also reported. The new resonance, denoted as Ds0(2590)+, is a strong candidate to be the Ds(2S10)+ state, the radial excitation of the pseudoscalar ground-state Ds+ meson.

KW - TOOL

U2 - 10.1103/PhysRevLett.126.122002

DO - 10.1103/PhysRevLett.126.122002

M3 - Article

SN - 0031-9007

VL - 126

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

M1 - 122002

ER -

Observation of a New Excited Ds+ Meson in B0 →d-D+K+π-Decays

Abstract

Keywords

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