The ratios of the production cross sections between the excited gamma(2S) and gamma(3S) mesons and the gamma(1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged particles in the event. The data are from proton-proton collisions at root s = 7TeV, corresponding to an integrated luminosity of 4.8 fb(-1), collected with the CMS detector at the LHC. Evidence of a decrease in these ratios as a function of the particle multiplicity is observed, more pronounced at low transverse momentum p(T)(mu mu). For gamma(nS) mesons with p(T)(mu mu) > 7 GeV, where most of the data were collected, the correlation with multiplicity is studied as a function of the underlying event transverse sphericity and...
9siThe ratios of the production cross sections between the excited gamma(2S) and gamma(3S) mesons an...
The ratios of the production cross sections between the excited $\Upsilon\text{(2S)}$ and $\Upsilon\...
International audienceThe ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S...
The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S)...
The ratios of the production cross sections between the excited Υ(2S) and Υ(3S) mesons and the Υ(1S)...
The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S)...
The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S)...
The ratios of the production cross sections between the excited gamma(2S) and gamma(3S) mesons and t...
9siThe ratios of the production cross sections between the excited gamma(2S) and gamma(3S) mesons an...
The ratios of the production cross sections between the excited $\Upsilon\text{(2S)}$ and $\Upsilon\...
International audienceThe ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S...
The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S)...
The ratios of the production cross sections between the excited Υ(2S) and Υ(3S) mesons and the Υ(1S)...
The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S)...
The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S)...
The ratios of the production cross sections between the excited gamma(2S) and gamma(3S) mesons and t...
9siThe ratios of the production cross sections between the excited gamma(2S) and gamma(3S) mesons an...
The ratios of the production cross sections between the excited $\Upsilon\text{(2S)}$ and $\Upsilon\...
International audienceThe ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S...