Measurement of the production cross-section of ψ(2S) →J/ψ (→ μ<sup>+</sup>μ¯)π<sup>+</sup> π¯ in pp collisions at √s = 7 TeV at ATLAS

The prompt and non-prompt production cross-sections for ψ(2S) mesons are measured using 2.1 fb<SUP>−1</SUP> of pp collision data at a centre-of-mass energy of 7TeV recorded by the ATLAS experiment at the LHC. The measurement exploits the ψ(2S) → J/ψ (→ μ<sup>+</sup>μ¯)π<su...

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Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Exactas
Física
Hadron-hadron scattering
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85407
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:The prompt and non-prompt production cross-sections for ψ(2S) mesons are measured using 2.1 fb<SUP>−1</SUP> of pp collision data at a centre-of-mass energy of 7TeV recorded by the ATLAS experiment at the LHC. The measurement exploits the ψ(2S) → J/ψ (→ μ<sup>+</sup>μ¯)π<sup>+</sup> π¯ decay mode, and probes ψ(2S) mesons with transverse momenta in the range 10 ≤ p<sub>T</sub> < 100 GeV and rapidity |y| < 2.0. The results are compared to other measurements of ψ(2S) production at the LHC and to various theoretical models for prompt and non-prompt quarkonium production.

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