TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
PY  - 2022
DA  - 2022//
TI  - Evidence for a New Structure in the J/psi p and J/psi(p)over-bar Systems in B-s(0) -> J/psi p(p)over-bar Decays
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 062001
EP  - 11pp
VL  - 128
IS  - 6
PB  - Amer Physical Soc
AB  - An amplitude analysis of flavor-untagged B-s(0) -> J=psi p (p) over bar decays is performed using a sample of 797 +/- 31 decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 fb(-1). Evidence for a new structure in the J=psi p and J=psi(p) over bar systems with a mass of 4337(-4-2)(+7+2) MeV and a width of 29(-12-14)(+26+14) MeV is found, where the first uncertainty is statistical and the second systematic, with a significance in the range of 3.1 to 3.7 sigma, depending on the assigned J(P) hypothesis.
SN  - 0031-9007
UR  - https://arxiv.org/abs/2108.04720
UR  - https://doi.org/10.1103/PhysRevLett.128.062001
DO  - 10.1103/PhysRevLett.128.062001
LA  - English
N1  - WOS:000759202300001
ID  - LHCbCollaborationAaij_etal2022
ER  -