RT Journal Article
T1 Measurement of the χ b (3P) mass and of the relative rate of χ b1(1P) and χ b2(1P) production
A1 LHCb Collaboration, 
A1 Adeva Andany, Bernardo
A1 Álvarez Cartelle, Paula
A1 Dosil Suárez, Álvaro
A1 Fernández Albor, Víctor Manuel
A1 Gallas Torreira, Abraham Antonio
A1 García Pardiñas, Julián
A1 Hernando Morata, José Ángel
A1 Plo Casasus, Máximo
A1 Romero Vidal, Antonio
A1 Saborido Silva, Juan José
A1 Sanmartín Sedes, Brais
A1 Santamarina Ríos, Cibrán
A1 Vázquez Regueiro, Pablo
A1 Vázquez Sierra, Carlos
A1 Vieites Díaz, María
K1 Quarkonium
K1 Hadron-Hadron Scattering
K1 Flavor physics
AB The production of  b mesons in proton-proton collisions is studied using a datasample collected by the LHCb detector, at centre-of-mass energies ofps = 7 and 8TeVand corresponding to an integrated luminosity of 3.0 fb−1. The  b mesons are identifiedthrough their decays to  (1S) and  (2S) using photons that converted to e+e− pairsin the detector. The relative prompt production rate of  b1(1P) and  b2(1P) mesonsis measured as a function of the  (1S) transverse momentum in the  b rapidity range2.0 < y < 4.5. A precise measurement of the  b(3P) mass is also performed. Assuming amass splitting between the  b1(3P) and the  b2(3P) states of 10.5 MeV/c2, the measuredmass of the  b1(3P) meson ism( b1(3P)) = 10515.7+2.2−3.9(stat)+1.5−2.1(syst)MeV/c2.
PB Springer
SN 1029-8479
YR 2014
FD 2014
LK http://hdl.handle.net/10347/22069
UL http://hdl.handle.net/10347/22069
LA eng
NO Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the χ b (3P) mass and of the relative rate of χ b1(1P) and χ b2(1P) production. J. High Energ. Phys. 2014, 88 (2014). https://doi.org/10.1007/JHEP10(2014)088
DS Minerva
RD 29 abr 2026