TY - JOUR
T1 - Observation of the Open-Charm Tetraquark Candidate ππβ’*π β’0β’(2870)0 in the π΅ββπ·ββ’π·0β’πΎ0π Decay
AU - Aaij, R
AU - Abdelmotteleb, A S W
AU - Abellan Beteta, C
AU - AbudinΓ©n, 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 - AtaΓde Da Silva, R
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 - Balboni, A
AU - LHCb collaboration
AU - da silva Bolognani, Carolina
AU - CΓ‘mpora PΓ©rez, Daniel Hugo
AU - Chiotopoulos, Xenofon
AU - de Vries, Jacco
AU - Lucio Martinez, Miriam
AU - Merk, Marcel
AU - Nicotra, Davide
AU - Onderwater, Gerco
AU - Pawley, Chris
AU - Vos, Keri
PY - 2025/3/11
Y1 - 2025/3/11
N2 - An amplitude analysis of (Formula presented) decays is performed using proton-proton collision data, corresponding to an integrated luminosity of (Formula presented), collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A resonant structure of spin-parity (Formula presented) is observed in the (Formula presented) invariant-mass spectrum with a significance of (Formula presented). The mass and width of the state, modeled with a Breit-Wigner line shape, are determined to be (Formula presented) and (Formula presented), respectively, where the first uncertainties are statistical and the second systematic. These properties and the quark content are consistent with those of the open-charm tetraquark candidate (Formula presented) observed previously in the (Formula presented) final state of the (Formula presented) decay. This result confirms the existence of the (Formula presented) state in a new decay mode. The (Formula presented) state, reported in the (Formula presented) decay, is also searched for in the (Formula presented) invariant-mass spectrum of the (Formula presented) decay, without finding evidence for it.
AB - An amplitude analysis of (Formula presented) decays is performed using proton-proton collision data, corresponding to an integrated luminosity of (Formula presented), collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A resonant structure of spin-parity (Formula presented) is observed in the (Formula presented) invariant-mass spectrum with a significance of (Formula presented). The mass and width of the state, modeled with a Breit-Wigner line shape, are determined to be (Formula presented) and (Formula presented), respectively, where the first uncertainties are statistical and the second systematic. These properties and the quark content are consistent with those of the open-charm tetraquark candidate (Formula presented) observed previously in the (Formula presented) final state of the (Formula presented) decay. This result confirms the existence of the (Formula presented) state in a new decay mode. The (Formula presented) state, reported in the (Formula presented) decay, is also searched for in the (Formula presented) invariant-mass spectrum of the (Formula presented) decay, without finding evidence for it.
U2 - 10.1103/PhysRevLett.134.101901
DO - 10.1103/PhysRevLett.134.101901
M3 - Article
SN - 0031-9007
VL - 134
SP - 101901
JO - Physical Review Letters
JF - Physical Review Letters
IS - 10
M1 - 101901
ER -