Pseudorapidity distribution of charged hadrons in proton–proton collisions at vs=13TeV

Khachatryan, Vladimir; Cabrillo Bartolomé, José Iban; Calderón Tazón, Alicia; Castiñeiras de Saa, Juan Ramón; Castro Manzano, Pablo de; Duarte Campderros, Jorge; Fernández García, Marcos; García Ferrero, Juan; Gómez Gramuglio, Gervasio; López Virto, María Amparo; Marco de Lucas, Jesús; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, Francisco; Muñoz Sánchez, Francisca Javiela; Piedra Gómez, Jonatan; Rodrigo Anoro, Teresa; Rodríguez Marrero, Ana Yaiza; Ruiz Jimeno, Alberto; Scodellaro, Luca; Vila Álvarez, Iván; Vilar Cortabitarte, Rocío

doi:10.1016/j.physletb.2015.10.004

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Identificadores

URI: http://hdl.handle.net/10902/13931

DOI: 10.1016/j.physletb.2015.10.004

ISSN: 0370-2693

ISSN: 1873-2445

; [et al.]

Fecha

2015-12

Derechos

Publicado en

Physics Letters B, Vol. 751, Pp. 143–163, 2015

Editorial

Elsevier

Enlace a la publicación

https://doi.org/10.1016/j.physletb.2015.10.004

Resumen/Abstract

The pseudorapidity distribution of charged hadrons in pp collisions at vs=13TeV is measured using a data sample obtained with the CMS detector, operated at zero magnetic field, at the CERN LHC. The yield of primary charged long-lived hadrons produced in inelastic pp collisions is determined in the central region of the CMS pixel detector (|?| <2) using both hit pairs and reconstructed tracks. For central pseudorapidities (|?| <0.5), the charged-hadron multiplicity density is dNch/d?

?|<0.5=5.49 ±0.01 (stat)±0.17 (syst), a value obtained by combining the two methods. The result is compared to predictions from Monte Carlo event generators and to similar measurements made at lower collision energies.

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