Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Márcio José Menon"'
Publikováno v:
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 79, Iss 12, Pp 1-15 (2019)
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
European Physical Journal C: Particles and Fields, Vol 79, Iss 12, Pp 1-15 (2019)
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
The role of low-$x$ parton dynamics in dictating the high-energy behavior of forward scattering observables at LHC energies is investigated using a QCD-based model with even-under-crossing amplitude dominance at high-energies. We explore the effects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35b1006dc8dddcda41cd1ce8b8427fa5
https://doi.org/10.1140/epjc/s10052-019-7545-2
https://doi.org/10.1140/epjc/s10052-019-7545-2
Publikováno v:
Physical Review
Recent data from LHC13 by the TOTEM Collaboration have indicated an unexpected decrease in the value of the $\rho$ parameter and a $\sigma_{tot}$ value in agreement with the trend of previous measurements at 7 and 8 TeV. These data at 13 TeV are not
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13a82a15d5db9cf0a1da21de565aca54
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
Physics Letters B, Vol 781, Iss, Pp 616-620 (2018)
Physics Letters
Physics Letters
Recent data from LHC13 by the TOTEM Collaboration on $\sigma_{tot}$ and $\rho$ have indicated disagreement with all the Pomeron model predictions by the COMPETE Collaboration (2002). On the other hand, as recently demonstrated by Martynov and Nicoles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c0f8804786becc0675eb3c86f63d9dd
http://arxiv.org/abs/1803.07167
http://arxiv.org/abs/1803.07167
Recent measurements of the proton-proton total cross section $\sigma_{tot}$ at 7 and 8 TeV by the TOTEM and ATLAS Collaborations are characterized by some discrepant values: the TOTEM data suggest a rise of the cross section with the energy faster th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e130abc3ab7a97f693a5fb2160512f89
http://arxiv.org/abs/1703.07486
http://arxiv.org/abs/1703.07486
Publikováno v:
Physics Letters B, Vol 799, Iss, Pp-(2019)
Physics Letters
Physics Letters
Recently the TOTEM experiment at the LHC has released measurements at $\sqrt{s} = 13$ TeV of the proton-proton total cross section, $\sigma_{tot}$, and the ratio of the real to imaginary parts of the forward elastic amplitude, $\rho$. Since then an i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8dcd10ce177579abf886609becfe7d51
https://doi.org/10.1016/j.physletb.2019.135047
https://doi.org/10.1016/j.physletb.2019.135047
Autor:
Márcio José Menon, D. A. Fagundes
Publikováno v:
Nuclear Physics A. 880:1-11
An almost model-independent parametrization for the ratio of the total cross section to the elastic slope, as function of the center of mass energy, is introduced. The analytical result is based on the approximate relation of this quantity with the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::525738d9a5929f1938087d64a762f1d0
https://doi.org/10.1016/j.nuclphysa.2012.01.017
https://doi.org/10.1016/j.nuclphysa.2012.01.017
Publikováno v:
International Journal of Modern Physics E. 16:2923-2926
We present the results of a novel model-independent fit to elastic proton-proton differential cross section data at $\sqrt s$ = 52.8 GeV. Taking into account the error propagation from the fit parameters, we determine the scattering amplitude in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae90619aabd6a0399e2005d4bdf6a57d
https://doi.org/10.1142/s0218301307008732
https://doi.org/10.1142/s0218301307008732
Autor:
Márcio José Menon
Publikováno v:
Repositório da Produção Científica e Intelectual da Unicamp
Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
Agradecimentos: It is a pleasure to congratulate Professor Yogiro Hama for his 70th anniversary and to express my deeply thankfull for the seeds launched and also for all the support to our group at Unicamp. Financial support by FAPESP (Contract No.0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46a2b41f80e0c467f1abad2f58b3f055
https://doi.org/10.1590/s0103-97332007000100005
https://doi.org/10.1590/s0103-97332007000100005
In the absence of a global description of the experimental data on elastic and soft diffractive scattering from the first principles of QCD, model-independent analyses may provide useful phenomenological insights for the development of the theory in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b080e14875716220e569d20360533fd
Publikováno v:
Nuclear Physics A. 745:104-120
We investigate some aspects and consequences of the extrema bounds for the soft Pomeron intercept, recently determined by means of global fits to $pp$ and $\bar{p}p$ total cross section data at both accelerator and cosmic-ray energy regions (scatteri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b890b05da421707a3f30da25c69a35ce
https://doi.org/10.1016/j.nuclphysa.2004.09.004
https://doi.org/10.1016/j.nuclphysa.2004.09.004