Measurement of exclusive ρ(770)0 photoproduction in ultraperipheral pPb collisions at √sNN=5.02 TeV
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/200543 |
Resumo: | Exclusive ρ(770)0 photoproduction is measured for the first time in ultraperipheral pPb collisions at √sNN=5.02 TeV with the CMS detector. The cross section σ(γp→ρ(770)0p) is 11.0±1.4(stat)±1.0(syst) μb at [Wγp]=92.6GeV for photon–proton centre-of-mass energies Wγp between 29 and 213GeV. The differential cross section dσ/d|t| is measured in the interval 0.025<|t|<1GeV2 as a function of Wγp, where t is the squared four-momentum transfer at the proton vertex. The results are compared with previous measurements and theoretical predictions. The measured cross section σ(γp→ρ(770)0p) has a power-law dependence on the photon–proton centre-of-mass, consistent with electron–proton collision measurements performed at HERA. The Wγp dependence of the exponential slope of the differential cross section dσ/d|t| is also measured |
id |
UFRGS-2_7af5a88f86b835dc1c55690b144eece0 |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/200543 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2019-10-11T03:56:09Z20191434-6044http://hdl.handle.net/10183/200543001102605Exclusive ρ(770)0 photoproduction is measured for the first time in ultraperipheral pPb collisions at √sNN=5.02 TeV with the CMS detector. The cross section σ(γp→ρ(770)0p) is 11.0±1.4(stat)±1.0(syst) μb at [Wγp]=92.6GeV for photon–proton centre-of-mass energies Wγp between 29 and 213GeV. The differential cross section dσ/d|t| is measured in the interval 0.025<|t|<1GeV2 as a function of Wγp, where t is the squared four-momentum transfer at the proton vertex. The results are compared with previous measurements and theoretical predictions. The measured cross section σ(γp→ρ(770)0p) has a power-law dependence on the photon–proton centre-of-mass, consistent with electron–proton collision measurements performed at HERA. The Wγp dependence of the exponential slope of the differential cross section dσ/d|t| is also measuredapplication/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 79, no. 8 (Aug. 2019), 702, 27 p.Aceleradores de partículasFotonsPrótonsFotoproducao de mesonsMeasurement of exclusive ρ(770)0 photoproduction in ultraperipheral pPb collisions at √sNN=5.02 TeVEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001102605.pdf.txt001102605.pdf.txtExtracted Texttext/plain105523http://www.lume.ufrgs.br/bitstream/10183/200543/2/001102605.pdf.txtc6ffc1a44836b58d800559f3452da7b8MD52ORIGINAL001102605.pdfTexto completo (inglês)application/pdf1946181http://www.lume.ufrgs.br/bitstream/10183/200543/1/001102605.pdfeda184fde1bc393d2c4f730f6593714eMD5110183/2005432023-08-05 03:40:00.743603oai:www.lume.ufrgs.br:10183/200543Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-05T06:40Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Measurement of exclusive ρ(770)0 photoproduction in ultraperipheral pPb collisions at √sNN=5.02 TeV |
title |
Measurement of exclusive ρ(770)0 photoproduction in ultraperipheral pPb collisions at √sNN=5.02 TeV |
spellingShingle |
Measurement of exclusive ρ(770)0 photoproduction in ultraperipheral pPb collisions at √sNN=5.02 TeV Sirunyan, A. M. Aceleradores de partículas Fotons Prótons Fotoproducao de mesons |
title_short |
Measurement of exclusive ρ(770)0 photoproduction in ultraperipheral pPb collisions at √sNN=5.02 TeV |
title_full |
Measurement of exclusive ρ(770)0 photoproduction in ultraperipheral pPb collisions at √sNN=5.02 TeV |
title_fullStr |
Measurement of exclusive ρ(770)0 photoproduction in ultraperipheral pPb collisions at √sNN=5.02 TeV |
title_full_unstemmed |
Measurement of exclusive ρ(770)0 photoproduction in ultraperipheral pPb collisions at √sNN=5.02 TeV |
title_sort |
Measurement of exclusive ρ(770)0 photoproduction in ultraperipheral pPb collisions at √sNN=5.02 TeV |
author |
Sirunyan, A. M. |
author_facet |
Sirunyan, A. M. Silveira, Gustavo Gil da CMS Collaboration |
author_role |
author |
author2 |
Silveira, Gustavo Gil da CMS Collaboration |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Sirunyan, A. M. Silveira, Gustavo Gil da CMS Collaboration |
dc.subject.por.fl_str_mv |
Aceleradores de partículas Fotons Prótons Fotoproducao de mesons |
topic |
Aceleradores de partículas Fotons Prótons Fotoproducao de mesons |
description |
Exclusive ρ(770)0 photoproduction is measured for the first time in ultraperipheral pPb collisions at √sNN=5.02 TeV with the CMS detector. The cross section σ(γp→ρ(770)0p) is 11.0±1.4(stat)±1.0(syst) μb at [Wγp]=92.6GeV for photon–proton centre-of-mass energies Wγp between 29 and 213GeV. The differential cross section dσ/d|t| is measured in the interval 0.025<|t|<1GeV2 as a function of Wγp, where t is the squared four-momentum transfer at the proton vertex. The results are compared with previous measurements and theoretical predictions. The measured cross section σ(γp→ρ(770)0p) has a power-law dependence on the photon–proton centre-of-mass, consistent with electron–proton collision measurements performed at HERA. The Wγp dependence of the exponential slope of the differential cross section dσ/d|t| is also measured |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-10-11T03:56:09Z |
dc.date.issued.fl_str_mv |
2019 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/200543 |
dc.identifier.issn.pt_BR.fl_str_mv |
1434-6044 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001102605 |
identifier_str_mv |
1434-6044 001102605 |
url |
http://hdl.handle.net/10183/200543 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
The European physical journal. C, Particles and fields. Berlin. Vol. 79, no. 8 (Aug. 2019), 702, 27 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/200543/2/001102605.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/200543/1/001102605.pdf |
bitstream.checksum.fl_str_mv |
c6ffc1a44836b58d800559f3452da7b8 eda184fde1bc393d2c4f730f6593714e |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1798487414847569920 |