Publication
Nuclear Effects on the Transverse Momentum Spectra of Charged Particles in pPb Collisions at $\sqrt{s_{_\mathrm {NN}}} =5.02$ TeV
| dc.contributor.author | CMS collaboration (2126 authors) | |
| dc.contributor.author | Hollar, Jonathan | |
| dc.contributor.author | Nayak, Aruna | |
| dc.contributor.author | Bargassa, Pedrame | |
| dc.contributor.author | Beirão Da Cruz E Silva, Cristóvão | |
| dc.contributor.author | Faccioli, Pietro | |
| dc.contributor.author | Ferreira Parracho, Pedro Guilherme | |
| dc.contributor.author | Gallinaro, Michele | |
| dc.contributor.author | Lloret Iglesias, Lara | |
| dc.contributor.author | Nguyen, Federico | |
| dc.contributor.author | Rodrigues Antunes, Joao | |
| dc.contributor.author | Seixas, Joao | |
| dc.contributor.author | Varela, Joao | |
| dc.contributor.author | Vischia, Pietro | |
| dc.contributor.author | David Tinoco Mendes, Andre | |
| dc.contributor.author | Silva, Pedro | |
| dc.contributor.author | Musella, Pasquale | |
| dc.contributor.author | Pela, Joao | |
| dc.contributor.author | Leonardo, Nuno | |
| dc.date.accessioned | 2019-02-04T06:05:36Z | |
| dc.date.available | 2019-02-04T06:05:36Z | |
| dc.date.issued | 2015-05-29 | |
| dc.date.updated | 2019-02-04T06:05:36Z | |
| dc.description.abstract | Transverse momentum spectra of charged particles are measured by the CMS experiment at the CERN LHC in pPb collisions at $\sqrt{s_{_\mathrm {NN}}} =5.02$ $\,\text {TeV}$ , in the range $0.4 < p_{\mathrm {T}} < 120$ ${\,\text {GeV/}c}$ and pseudorapidity $|\eta _\textsc {cm} | < 1.8$ in the proton–nucleon center-of-mass frame. For $p_{\mathrm {T}} <10$ ${\,\text {GeV/}c}$ , the charged-particle production is asymmetric about $\eta _\textsc {cm} = 0$ , with smaller yield observed in the direction of the proton beam, qualitatively consistent with expectations from shadowing in nuclear parton distribution functions (nPDF). A pp reference spectrum at $\sqrt{s}=5.02$ $\,\text {TeV}$ is obtained by interpolation from previous measurements at higher and lower center-of-mass energies. The $p_{\mathrm {T}}$ distribution measured in pPb collisions shows an enhancement of charged particles with $p_{\mathrm {T}} >20$ ${\,\text {GeV/}c}$ compared to expectations from the pp reference. The enhancement is larger than predicted by perturbative quantum chromodynamics calculations that include antishadowing modifications of nPDFs. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | Eur.Phys.J. C75 (2015) 237; DOI 10.1140/epjc/s10052-015-3435-4 | |
| dc.identifier.uri | http://dx.doi.org/10.1140/epjc/s10052-015-3435-4 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26785 | |
| dc.language.iso | eng | |
| dc.title | Nuclear Effects on the Transverse Momentum Spectra of Charged Particles in pPb Collisions at $\sqrt{s_{_\mathrm {NN}}} =5.02$ TeV | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |