Determination of quantum numbers for several excited charmed mesons observed in B- →d∗+π-π- decays

(LHCb Collaboration)

doi:10.1103/PhysRevD.101.032005

Determination of quantum numbers for several excited charmed mesons observed in B- →d∗+π-π- decays

(LHCb Collaboration)

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

Abstract

A four-body amplitude analysis of the B-→D∗+π-π- decay is performed, where fractions and relative phases of the various resonances contributing to the decay are measured. Several quasi-model-independent analyses are performed aimed at searching for the presence of new states and establishing the quantum numbers of previously observed charmed meson resonances. In particular the resonance parameters and quantum numbers are determined for the D1(2420), D1(2430), D0(2550), D1∗(2600), D2(2740) and D3∗(2750) states. The mixing between the D1(2420) and D1(2430) resonances is studied and the mixing parameters are measured. The dataset corresponds to an integrated luminosity of 4.7 fb-1, collected in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV with the LHCb detector.

Original language	English
Article number	032005
Journal	Physical Review D
Volume	101
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.101.032005
Publication status	Published - 1 Feb 2020
Externally published	Yes

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10.1103/PhysRevD.101.032005

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@article{a27bebe21dda4d13a12e5a8d8e74f6e0,

title = "Determination of quantum numbers for several excited charmed mesons observed in B- →d∗+π-π- decays",

abstract = "A four-body amplitude analysis of the B-→D∗+π-π- decay is performed, where fractions and relative phases of the various resonances contributing to the decay are measured. Several quasi-model-independent analyses are performed aimed at searching for the presence of new states and establishing the quantum numbers of previously observed charmed meson resonances. In particular the resonance parameters and quantum numbers are determined for the D1(2420), D1(2430), D0(2550), D1∗(2600), D2(2740) and D3∗(2750) states. The mixing between the D1(2420) and D1(2430) resonances is studied and the mixing parameters are measured. The dataset corresponds to an integrated luminosity of 4.7 fb-1, collected in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV with the LHCb detector.",

author = "\{(LHCb Collaboration)\} and R. Aaij and \{Abell{\'a}n Beteta\}, C. 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 P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and F. Archilli and \{Arnau Romeu\}, J. and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and Back, \{J. J.\} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and G. Bassi and V. Batozskaya and B. Batsukh and A. Battig and V. Battista and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2020 CERN, for the LHCb Collaboration.",

year = "2020",

month = feb,

day = "1",

doi = "10.1103/PhysRevD.101.032005",

language = "English",

volume = "101",

journal = "Physical Review D",

issn = "2470-0010",

number = "3",

}

TY - JOUR

T1 - Determination of quantum numbers for several excited charmed mesons observed in B- →d∗+π-π- decays

AU - (LHCb Collaboration)

AU - Aaij, R.

AU - Abellán Beteta, C.

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 - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Archilli, F.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Bassi, G.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battig, A.

AU - Battista, V.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2020/2/1

Y1 - 2020/2/1

N2 - A four-body amplitude analysis of the B-→D∗+π-π- decay is performed, where fractions and relative phases of the various resonances contributing to the decay are measured. Several quasi-model-independent analyses are performed aimed at searching for the presence of new states and establishing the quantum numbers of previously observed charmed meson resonances. In particular the resonance parameters and quantum numbers are determined for the D1(2420), D1(2430), D0(2550), D1∗(2600), D2(2740) and D3∗(2750) states. The mixing between the D1(2420) and D1(2430) resonances is studied and the mixing parameters are measured. The dataset corresponds to an integrated luminosity of 4.7 fb-1, collected in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV with the LHCb detector.

AB - A four-body amplitude analysis of the B-→D∗+π-π- decay is performed, where fractions and relative phases of the various resonances contributing to the decay are measured. Several quasi-model-independent analyses are performed aimed at searching for the presence of new states and establishing the quantum numbers of previously observed charmed meson resonances. In particular the resonance parameters and quantum numbers are determined for the D1(2420), D1(2430), D0(2550), D1∗(2600), D2(2740) and D3∗(2750) states. The mixing between the D1(2420) and D1(2430) resonances is studied and the mixing parameters are measured. The dataset corresponds to an integrated luminosity of 4.7 fb-1, collected in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV with the LHCb detector.

UR - https://www.scopus.com/pages/publications/85108875903

U2 - 10.1103/PhysRevD.101.032005

DO - 10.1103/PhysRevD.101.032005

M3 - Article

AN - SCOPUS:85108875903

SN - 2470-0010

VL - 101

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 032005

ER -

Determination of quantum numbers for several excited charmed mesons observed in B- →d∗+π-π- decays

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