TY - JOUR
T1 - Observation of New Charmonium or Charmoniumlike States in B+ →D∗±D∓K+ Decays
AU - Aaij, R
AU - Abdelmotteleb, A S W
AU - Abellan Beteta, C
AU - Abudinén, F
AU - Ackernley, T
AU - Adefisoye, A A
AU - Adeva, B
AU - Adinolfi, M
AU - Adlarson, P
AU - Agapopoulou, C
AU - Aidala, C A
AU - Ajaltouni, Z
AU - Akar, S
AU - Akiba, K
AU - Albicocco, P
AU - Albrecht, J
AU - Alessio, F
AU - Alexander, M
AU - Aliouche, Z
AU - Alvarez Cartelle, P
AU - Amalric, R
AU - Amato, S
AU - Amey, J L
AU - Amhis, Y
AU - An, L
AU - Anderlini, L
AU - Andersson, M
AU - Andreianov, A
AU - Andreola, P
AU - Andreotti, M
AU - Andreou, D
AU - Anelli, A
AU - Ao, D
AU - Archilli, F
AU - Argenton, M
AU - Arguedas Cuendis, S
AU - Artamonov, A
AU - Artuso, M
AU - Aslanides, E
AU - Atzeni, M
AU - Audurier, B
AU - Bacher, D
AU - Bachiller Perea, I
AU - Bachmann, S
AU - Bachmayer, M
AU - Back, J J
AU - Baladron Rodriguez, P
AU - Balagura, V
AU - Baldini, W
AU - Baptista de Souza Leite, J
AU - LHCb collaboration
AU - da silva Bolognani, Carolina
AU - Cámpora Pérez, Daniel Hugo
AU - de Vries, Jacco
AU - Lucio Martinez, Miriam
AU - Merk, Marcel
AU - Nicotra, Davide
AU - Onderwater, Gerco
AU - Pawley, Chris
AU - Vos, Keri
PY - 2024/9/27
Y1 - 2024/9/27
N2 - A study of resonant structures in B+→D∗+D-K+ and B+→D∗-D+K+ decays is performed, using proton-proton collision data at center-of-mass energies of s=7, 8, and 13 TeV recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb-1. A simultaneous amplitude fit is performed to the two channels with contributions from resonances decaying to D∗-D+ and D∗+D- states linked by C parity. This procedure allows the C parities of resonances in the D∗±D∓ mass spectra to be determined. Four charmonium or charmoniumlike states are observed decaying into D∗±D∓: ηc(3945), hc(4000), χc1(4010), and hc(4300), with quantum numbers JPC equal to 0-+, 1+-, 1++, and 1+-, respectively. At least three of these states have not been observed previously. In addition, the existence of the Tc¯s¯0∗(2870)0 and Tc¯s¯1∗(2900)0 resonances in the D-K+ mass spectrum, already observed in the B+→D+D-K+ decay, is confirmed in a different production channel.
AB - A study of resonant structures in B+→D∗+D-K+ and B+→D∗-D+K+ decays is performed, using proton-proton collision data at center-of-mass energies of s=7, 8, and 13 TeV recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb-1. A simultaneous amplitude fit is performed to the two channels with contributions from resonances decaying to D∗-D+ and D∗+D- states linked by C parity. This procedure allows the C parities of resonances in the D∗±D∓ mass spectra to be determined. Four charmonium or charmoniumlike states are observed decaying into D∗±D∓: ηc(3945), hc(4000), χc1(4010), and hc(4300), with quantum numbers JPC equal to 0-+, 1+-, 1++, and 1+-, respectively. At least three of these states have not been observed previously. In addition, the existence of the Tc¯s¯0∗(2870)0 and Tc¯s¯1∗(2900)0 resonances in the D-K+ mass spectrum, already observed in the B+→D+D-K+ decay, is confirmed in a different production channel.
U2 - 10.1103/PhysRevLett.133.131902
DO - 10.1103/PhysRevLett.133.131902
M3 - Article
SN - 0031-9007
VL - 133
SP - 131902
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
M1 - 131902
ER -