Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
χc1 and χc2 Resonance Parameters with the Decays χc1,c2 →j /ψμ+μ-. / The LHCb Collaboration.
в: Physical Review Letters, Том 119, № 22, 221801, 28.11.2017.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - χc1 and χc2 Resonance Parameters with the Decays χc1,c2 →j /ψμ+μ-
AU - The LHCb Collaboration
AU - Aaij, R.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Albrecht, J.
AU - Alessio, F.
AU - Alexander, M.
AU - Alfonso Albero, A.
AU - Ali, S.
AU - Alkhazov, G.
AU - Alvarez Cartelle, P.
AU - Alves, A. A.
AU - Amato, S.
AU - Amerio, S.
AU - Amhis, Y.
AU - An, L.
AU - Anderlini, L.
AU - Andreassi, G.
AU - Andreotti, M.
AU - Andrews, J. E.
AU - Appleby, R. B.
AU - Archilli, F.
AU - D'Argent, P.
AU - Arnau Romeu, J.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Atzeni, M.
AU - Auriemma, G.
AU - Baalouch, M.
AU - Babuschkin, I.
AU - Bachmann, S.
AU - Back, J. J.
AU - Badalov, A.
AU - Baesso, C.
AU - Baker, S.
AU - Balagura, V.
AU - Baldini, W.
AU - Baranov, A.
AU - Barlow, R. J.
AU - Barschel, C.
AU - Barsuk, S.
AU - Barter, W.
AU - Baryshnikov, F.
AU - Bondar, A.
AU - Eidelman, S.
AU - Krokovny, P.
AU - Shekhtman, L.
AU - Vorobyev, V.
N1 - Publisher Copyright: © 2017 CERN, for the LHCb Collaboration.
PY - 2017/11/28
Y1 - 2017/11/28
N2 - The decays χc1→J/ψμ+μ- and χc2→J/ψμ+μ- are observed and used to study the resonance parameters of the χc1 and χc2 mesons. The masses of these states are measured to be m(χc1)=3510.71±0.04(stat)±0.09(syst) MeV and m(χc2)=3556.10±0.06(stat)±0.11(syst) MeV, where the knowledge of the momentum scale for charged particles dominates the systematic uncertainty. The momentum-scale uncertainties largely cancel in the mass difference m(χc2)-m(χc1)=45.39±0.07(stat)±0.03(syst) MeV. The natural width of the χc2 meson is measured to be Γ(χc2)=2.10±0.20(stat)±0.02(syst) MeV. These results are in good agreement with and have comparable precision to the current world averages.
AB - The decays χc1→J/ψμ+μ- and χc2→J/ψμ+μ- are observed and used to study the resonance parameters of the χc1 and χc2 mesons. The masses of these states are measured to be m(χc1)=3510.71±0.04(stat)±0.09(syst) MeV and m(χc2)=3556.10±0.06(stat)±0.11(syst) MeV, where the knowledge of the momentum scale for charged particles dominates the systematic uncertainty. The momentum-scale uncertainties largely cancel in the mass difference m(χc2)-m(χc1)=45.39±0.07(stat)±0.03(syst) MeV. The natural width of the χc2 meson is measured to be Γ(χc2)=2.10±0.20(stat)±0.02(syst) MeV. These results are in good agreement with and have comparable precision to the current world averages.
KW - CHARMONIUM
KW - STATES
KW - TOOL
UR - http://www.scopus.com/inward/record.url?scp=85037680860&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.119.221801
DO - 10.1103/PhysRevLett.119.221801
M3 - Article
C2 - 29286773
AN - SCOPUS:85037680860
VL - 119
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 22
M1 - 221801
ER -
ID: 9869465