Measurements of the inclusive J/ψyield as a function of charged-particle pseudorapidity density dNch/dηin pp collisions at √s=13 TeV with ALICE at the LHC are reported. The J/ψmeson yield is measured at midrapidity (|y| <0.9) in the dielectron channel, for events selected based on the charged-particle multiplicity at midrapidity (|η| <1) and at forward rapidity (−3.7 <−1.7and 2.8 <5.1); both observables are normalized to their corresponding averages in minimum bias events. The increase of the normalized J/ψyield with normalized dNch/dηis significantly stronger than linear and dependent on the transverse momentum. The data are compared to theoretical predictions, which describe the observed trends well, albeit not always quantitatively.

Multiplicity dependence of inclusive J/ψ production at midrapidity in pp collisions at s=13 TeV / Acharya, S., Adamová, D., Adler, A., Adolfsson, J., Aggarwal, M.M., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, S., Ahn, S.U., Akbar, Z., Akindinov, A., Al-Turany, M., Alam, S.N., Albuquerque, D.S.D., Aleksandrov, D., Alessandro, B., Alfanda, H.M., Alfaro Molina, R., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 810:(2020). [10.1016/j.physletb.2020.135758]

Multiplicity dependence of inclusive J/ψ production at midrapidity in pp collisions at s=13 TeV

Toppi, M.;
2020

Abstract

Measurements of the inclusive J/ψyield as a function of charged-particle pseudorapidity density dNch/dηin pp collisions at √s=13 TeV with ALICE at the LHC are reported. The J/ψmeson yield is measured at midrapidity (|y| <0.9) in the dielectron channel, for events selected based on the charged-particle multiplicity at midrapidity (|η| <1) and at forward rapidity (−3.7 <−1.7and 2.8 <5.1); both observables are normalized to their corresponding averages in minimum bias events. The increase of the normalized J/ψyield with normalized dNch/dηis significantly stronger than linear and dependent on the transverse momentum. The data are compared to theoretical predictions, which describe the observed trends well, albeit not always quantitatively.
2020
quark gluon plasma
Hadron-Hadron scattering (experiments), quarkonia production, ALICE experiment
01 Pubblicazione su rivista::01a Articolo in rivista
Multiplicity dependence of inclusive J/ψ production at midrapidity in pp collisions at s=13 TeV / Acharya, S., Adamová, D., Adler, A., Adolfsson, J., Aggarwal, M.M., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, S., Ahn, S.U., Akbar, Z., Akindinov, A., Al-Turany, M., Alam, S.N., Albuquerque, D.S.D., Aleksandrov, D., Alessandro, B., Alfanda, H.M., Alfaro Molina, R., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 810:(2020). [10.1016/j.physletb.2020.135758]
File allegati a questo prodotto
File Dimensione Formato  
Acharya_multiplicity_2020.pdf

accesso aperto

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Creative commons
Dimensione 1.11 MB
Formato Adobe PDF
1.11 MB Adobe PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1469900
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 54
  • ???jsp.display-item.citation.isi??? 49
social impact