TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Henry, L.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Valls, P.
AU  - Ruiz Vidal, J.
AU  - Sanchez Mayordomo, C.
PY  - 2018
DA  - 2018//
TI  - Search for excited B-c(+) states
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 138
EP  - 18pp
VL  - 01
IS  - 1
PB  - Springer
KW  - B physics
KW  - Hadron-Hadron scattering (experiments)
KW  - Spectroscopy
AB  - A search is performed in the invariant mass spectrum of the B-c(+)pi(+) pi(-) system for the excited B-c(+) states B-c (2(1)S(0)) + and B-c(2(3)S(1)) + using a data sample of p p collisions collected by the LHCb experiment at the centre- of- mass energy of root s = 8TeV, corresponding to an integrated luminosity of 2 fb(-1). No evidence is seen for either state. Upper limits on the ratios of the production cross- sections of the Bc (2(1)S(0)) + and B-c(2(3)S(1)) + states times the branching fractions of Bc (2(1)S(0))(+) -> B-c(+)pi(+) pi(-) and B-c (2(3) S-1)(+) -> B-c*(+)pi(+) pi(-) over the production cross- section of the B-c(+) state are given as a function of their masses. They are found to be between 0.02 and 0.14 at 95% con fi dence level for B-c (2(1)S(0)) + and B-c (2(3)S(1)) + in the mass ranges [6830; 6890] MeV/c(2) and [6795; 6890] MeV/c(2), respectively.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1712.04094
UR  - https://doi.org/10.1007/JHEP01(2018)138
DO  - 10.1007/JHEP01(2018)138
LA  - English
N1  - WOS:000424644300001
ID  - LHCbCollaborationAaij_etal2018
ER  -