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Pseudorapidity distribution of charged hadrons in proton-proton collisions at $s$ = 13 TeV

Pseudorapidity distribution of charged hadrons in proton-proton collisions at $s$ = 13 TeV
Pseudorapidity distribution of charged hadrons in proton-proton collisions at $s$ = 13 TeV
The pseudorapidity distribution of charged hadrons in pp collisions at s=13 TeV 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 ( |η|<2 ) using both hit pairs and reconstructed tracks. For central pseudorapidities ( |η|<0.5 ), the charged-hadron multiplicity density is dNch/dη||η|<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.
0370-2693
143-163
Khachatryan, Vardan
375bcfe5-df1a-41ad-9a90-553e557ef6d6
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
The CMS Collaboration
Khachatryan, Vardan
375bcfe5-df1a-41ad-9a90-553e557ef6d6
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

The CMS Collaboration (2015) Pseudorapidity distribution of charged hadrons in proton-proton collisions at $s$ = 13 TeV. Physics Letters B, B751, 143-163. (doi:10.1016/j.physletb.2015.10.004).

Record type: Article

Abstract

The pseudorapidity distribution of charged hadrons in pp collisions at s=13 TeV 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 ( |η|<2 ) using both hit pairs and reconstructed tracks. For central pseudorapidities ( |η|<0.5 ), the charged-hadron multiplicity density is dNch/dη||η|<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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More information

Published date: 2015
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 411053
URI: http://eprints.soton.ac.uk/id/eprint/411053
ISSN: 0370-2693
PURE UUID: cc53c50a-9d5d-455e-b459-b2d88d4e0252
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

Catalogue record

Date deposited: 13 Jun 2017 16:32
Last modified: 26 Nov 2021 02:52

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Contributors

Author: Vardan Khachatryan
Corporate Author: The CMS Collaboration

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