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CERN Document Server	Znaleziono 2,032 rekordów 1 - 10 skocz do rekordu:	Szukanie trwało 1.27 sekund.

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Coherent and incoherent $J/\Psi $ photoproduction in $Pb - Pb$ collisions at the LHC, HE-LHC and FCC / Gonçalves, Victor P. (Pelotas U.) ; Martins, Daniel E. (Rio de Janeiro Federal U.) ; Sena, Celso R. (Pelotas U.)
The coherent and incoherent $J/\Psi$ photoproduction in $PbPb$ collisions are investigated considering the possible states of nucleon configurations in the nuclear wave function and taking into account of the non - linear corrections to the QCD dynamics. The cross sections and the rapidity and transverse momentum distributions are estimated for the energies of the next run of the LHC, High -- Energy LHC and Future Circular Collider. [...]
arXiv:2007.13625.- 2021-03-01 - 8 p. - Published in : Eur. Phys. J. A 57 (2021) 82 Fulltext: PDF;

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Exclusive and diffractive $\gamma \gamma$ production in $PbPb$ collisions at the LHC, HE - LHC and FCC / Coelho, R.O. (Pelotas U.) ; Gonçalves, V.P. (Pelotas U.) ; Martins, D.E. (Rio de Janeiro Federal U.) ; Rangel, M. (Rio de Janeiro Federal U.)
In this paper we present a detailed analysis of the contribution of the Light -- by -- Light (LbL), Durham and double diffractive processes for the diphoton production in ultraperipheral $PbPb$ collisions at the Large Hadron Collider (LHC), High -- Energy LHC (HE -- LHC) and Future Circular Collider (FCC). The acceptance of the central and forward LHC detectors is taken into account and predictions for the invariant mass, rapidity, transverse momentum and acoplanarity distributions are presented. [...]
arXiv:2002.03902.- 2020-05-30 - 11 p. - Published in : Eur. Phys. J. C Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;

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Diffractive $\gamma \gamma$ production in $pp$ collisions at the LHC / Goncalves, V.P. (Pelotas U.) ; Martins, D.E. (Rio de Janeiro Federal U.) ; Rangel, M.S. (Rio de Janeiro Federal U.)
In this letter we estimate the contribution of the double diffractive processes for the diphoton production in $pp$ collisions at the Large Hadron Collider (LHC). The acceptance of the central and forward LHC detectors is taken into account and predictions for the invariant mass, rapidity and, transverse momentum distributions are presented. [...]
arXiv:2007.01826.- 2020-09-10 - 7 p. - Published in : Eur. Phys. J. C 80 (2020) 841 Article from SCOAP3: PDF; Fulltext: PDF;

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Exclusive vector meson production in electron – ion collisions at the EIC, LHeC and FCC–$eh$ / Goncalves, Victor P. (Pelotas U.) ; Martins, Daniel E. (Rio de Janeiro Federal U.) ; Sena, Celso R. (Pelotas U.)
The exclusive vector meson production in electron-ion collisions for the energies of the future colliders is investigated. We present predictions for the coherent and incoherent $\phi$ and $J/\psi$ production in $eAu$ collisions considering the possible states of nucleon configurations in the nuclear wave function and taking into account of the non-linear corrections to the QCD dynamics. [...]
arXiv:2008.03145.- 2020-12 - 10 p. - Published in : Nucl. Phys. A 1004 (2020) 122055 Fulltext: PDF;

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Photoproduction of massive gauge bosons in $pp$, $pPb$ and $PbPb$ collisions / Coelho, R.O. (Pelotas U.) ; Gonçalves, V.P. (Pelotas U.)
In this letter we present, for the first time, the results for the photoproduction of massive gauge bosons in proton -- proton, proton -- Lead and Lead -- Lead collisions at the Large Hadron Collider (LHC), High -- Energy LHC (HE -- LHC) and Future Circular Collider (FCC). Predictions for the rapidity distributions and total cross sections are presented. [...]
arXiv:2002.10713.- 2020-07-10 - 5 p. - Published in : Phys. Lett. B 806 (2020) 135498 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from publisher: PDF;

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Fully - heavy tetraquark production by $\gamma\gamma$ interactions in hadronic collisions at the LHC / Gonçalves, Victor P. (Pelotas U.) ; Moreira, Bruno D. (UDESC, CCT)
We investigate the production of the fully - heavy tetraquark states $T_{4Q}$ in the $\gamma \gamma$ interactions present in proton-proton, proton-nucleus and nucleus-nucleus collisions at the CERN Large Hadron Collider (LHC). We focus on the $\gamma \gamma \rightarrow {\cal{Q}}{\cal{Q}}$ (${\cal{Q}} = J/\psi,\, \Upsilon$) subprocess, mediated by the $T_{4Q}$ resonance in the $s$ - channel, and present predictions for the hadronic cross sections considering the kinematical ranges probed by the ALICE and LHCb Collaborations. [...]
arXiv:2101.03798.- 2021-05-10 - 5 p. - Published in : Phys. Lett. B 816 (2021) 136249 Article from SCOAP3: PDF; Fulltext: PDF;

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Nonexclusive particle production by $\gamma\gamma$ interactions in $pp$ collisions at the LHC / da Silveira, G. Gil (Rio Grande do Sul U. ; Rio de Janeiro State U.) ; Gonçalves, V.P. (Pelotas U.) ; Vargas Veronez, G.G. (Pelotas U.)
Particle production in two-photon interactions at hadronic collisions is becoming increasingly relevant in the LHC physics programme as a way to improve our understanding of the Standard Model and search for signals of New Physics. A key ingredient for the study of these interactions in $pp$ collisions is the description of the photon content of the proton, which allow us to derive predictions for the cross sections associated to events where occur the proton dissociation (non - exclusive processes) and for those where both incident protons remain intact (exclusive processes). [...]
arXiv:2103.00992.- 2021-04-27 - 9 p. - Published in : Phys. Rev. D Article from SCOAP3: PDF; Fulltext: PDF;

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Top quark pair production in the exclusive processes at LHC / Gonçalves, Victor P. (Pelotas U.) ; Martins, Daniel E. (Rio de Janeiro Federal U.) ; Rangel, Murilo S. (Rio de Janeiro Federal U.) ; Tasevsky, Marek (Prague, Inst. Phys.)
We analyze the LHC prospects for measurements of the $t\bar{t}$ pair produced exclusively in photon-photon or semi-exclusively in photon-Pomeron and Pomeron-Pomeron processes using protons tagged in forward proton detectors on both sides of the interaction point. These processes are interesting from the point of view of a possible measurement of the top quark mass and constraining models used in Beyond Standard Model physics. [...]
arXiv:2007.04565.- 2020-10-22 - 10 p. - Published in : Phys. Rev. D 102 (2020) 074014 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF;

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The Forward Physics Facility: Sites, experiments, and physics potential / Anchordoqui, Luis A. (Lehman Coll.) ; Ariga, Akitaka (Bern U., LHEP ; Chiba U.) ; Ariga, Tomoko (Kyushu U., Fukuoka (main)) ; Bai, Weidong (Zhongshan U.) ; Balazs, Kincso (CERN) ; Batell, Brian (Pittsburgh U.) ; Boyd, Jamie (CERN) ; Bramante, Joseph (Queen's U., Kingston) ; Campanelli, Mario (University Coll. London) ; Carmona, Adrian (CAFPE, Granada) et al.
The Forward Physics Facility (FPF) is a proposal to create a cavern with the space and infrastructure to support a suite of far-forward experiments at the Large Hadron Collider during the High Luminosity era. Located along the beam collision axis and shielded from the interaction point by at least 100 m of concrete and rock, the FPF will house experiments that will detect particles outside the acceptance of all existing LHC experiments and will observe rare and exotic processes in an extremely low-background environment. [...]
arXiv:2109.10905; BNL-222142-2021-FORE; CERN-PBC-Notes-2021-025; DESY-21-142; DESY-21-142, FERMILAB-CONF-21-452-AE-E-ND-PPD-T; KYUSHU-RCAPP-2021-01; LU TP 21-36, PITT-PACC-2118; SMU-HEP-21-10; UCI-TR-2021-22; FERMILAB-CONF-21-452-AE-E-ND-PPD-T.- Geneva : CERN, 2022-07-19 - 74 p. - Published in : Phys. Rep. 968 (2022) 1-50 Fulltext: CERN-PBC-Notes-2021-025 - PDF; 2109.10905 - PDF; Publication - PDF; fermilab-conf-21-452-ae-e-nd-ppd-t - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server

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Searches for axion-like particles via $\gamma \gamma$ fusion at future $\mathrm{e}^+\mathrm{e}^-$ colliders / Rebello Teles, Patricia (Rio de Janeiro, CBPF) ; d'Enterria, David (CERN) ; Gonçalves, Victor P. (Pelotas U. ; Lanzhou, Inst. Modern Phys.) ; Martins, Daniel E. (Cracow, INP)
Opportunities for searches for axion-like particles (ALPs) coupling to photons in $\mathrm{e}^+\mathrm{e}^-$ collisions at the Future Circular Collider (FCC-ee) and International Linear Collider (ILC) are investigated. We perform a study of the photon-fusion production of ALPs decaying into two photons, $\mathrm{e}^+\mathrm{e}^- \overset{\gamma \gamma}{\longrightarrow} \mathrm{e}^{+}\;a(\gamma \gamma)\;\mathrm{e}^{-}$, over the light-by-light continuum background, for the planned FCC-ee and ILC center-of-mass energies and integrated luminosities. [...]
arXiv:2310.17270.- 2024-03-01 - 15 p. - Published in : Phys. Rev. D 109 (2024) 055003 Fulltext: 2310.17270 - PDF; Publication - PDF;

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