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Measurement of Prompt ?(2S) to J/? Yield Ratios in Pb-Pb and p-p Collisions at vsNN=2.76??TeV

Abstract: The ratio between the prompt ?(2S) and J/? yields, reconstructed via their decays into µ+µ-, is measured in Pb-Pb and p-p collisions at vsNN=2.76??TeV. The analysis is based on Pb-Pb and p-p data samples collected by CMS at the Large Hadron Collider, corresponding to integrated luminosities of 150??µb-1 and 5.4??pb-1, respectively. The double ratio of measured yields (N?(2S)/NJ/?)Pb-Pb/(N?(2S)/NJ/?)p-p is computed in three Pb-Pb collision centrality bins and two kinematic ranges: one at midrapidity, |y|<1.6, covering the transverse momentum range 6.5

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Phys. Rev. Lett. Vol. 113, Num. 26, Pag. 232601 (2014)

Editorial: American Physical Society

 Fecha de publicación: 01/12/2014

Nº de páginas: 15

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.113.262301

ISSN: 0031-9007,1079-7114

Proyecto español: FPA2014-55295-C3-1-R ; FPA 2011-28694-C02-01

Url de la publicación: https://doi.org/10.1103/PhysRevLett.113.262301