The influence of the χb(3P) state on the decay cascade of bottomium in PbPb collisions at LHC energies
Institut für Theoretische Physik der Universität Heidelberg - Philosophenweg 16, D-69120 Heidelberg, Germany, EU
Received: 1 May 2013
Accepted: 17 May 2013
We investigate the decay cascade of the ϒ(nS) meson including the newly found χb(3P) state in pp and PbPb collisions at LHC energies. The main goal is to quantitatively determine the additional suppression of the ϒ(nS) states in PbPb collisions relative to pp at LHC energies of when the χb(3P) state is included together with the ϒ(nS) and χb(1P,2P) states. It is found that the suppression of ϒ(1S) in PbPb collisions relative to pp is increased by at most 7% through the inclusion of χb(3P), whereas the suppression factors for the ϒ(2S) and ϒ(3S) states do not change significantly.
PACS: 25.75.-q – Relativistic heavy-ion collisions / 25.75.Dw – Particle and resonance production / 25.75.Cj – Photon, lepton, and heavy quark production in relativistic heavy ion collisions
© EPLA, 2013