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Hyperon Polarization along the Beam Direction Relative to the Second and Third Harmonic Event Planes in Isobar Collisions at <math display="inline"><mrow><msqrt><mrow><msub><mrow><mi>s</mi></mrow><mrow><mi>N</mi><mi>N</mi></mrow></msub></mrow></msqrt><mo>=</mo><mn>200</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></mrow></math> / STAR Collaboration
The polarization of $\Lambda$ and $\bar{\Lambda}$ hyperons along the beam direction has been measured relative to the second and third harmonic event planes in isobar Ru+Ru and Zr+Zr collisions at $\sqrt{s_{NN}}$ = 200 GeV. This is the first experimental evidence of the hyperon polarization by the triangular flow originating from the initial density fluctuations. [...]
arXiv:2303.09074.- 2023-11-14 - 7 p. - Published in : Phys. Rev. Lett. 131 (2023) 202301 Fulltext: PDF;

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Search for the chiral magnetic wave using anisotropic flow of identified particles at energies available at the BNL Relativistic Heavy Ion Collider / STAR Collaboration
The chiral magnetic wave (CMW) has been theorized to propagate in the deconfined nuclear medium formed in high-energy heavy-ion collisions, and to cause a difference in elliptic flow ($v_{2}$) between negatively and positively charged hadrons. Experimental data consistent with the CMW have been reported by the STAR Collaboration at the Relativistic Heavy Ion Collider (RHIC), based on the charge asymmetry dependence of the pion $v_{2}$ from Au+Au collisions at $\sqrt{s_{\rm NN}}$ = 27 to 200 GeV. [...]
arXiv:2210.14027.- 2023-07-14 - 11 p. - Published in : Phys. Rev. C Fulltext: PDF;

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Measurement of the cross-section ratio σ$_{ψ(2S)}$/σ$_{J/ψ(1S)}$ in exclusive photoproduction at HERA / ZEUS Collaboration
The exclusive photoproduction reactions $\gamma p \to J/\psi(1S) p$ and $\gamma p \to \psi(2S) p$ have been measured at an $ep$ centre-of-mass energy of 318 GeV with the ZEUS detector at HERA using an integrated luminosity of 373 pb$^{-1}$. The measurement was made in the kinematic range $30 < W < 180$ GeV, $Q^2 < 1$ GeV$^2$ and $|t| < 1$ GeV$^2$, where $W$ is the photon--proton centre-of-mass energy, $Q^2$ is the photon virtuality and $t$ is the squared four-momentum transfer at the proton vertex. [...]
arXiv:2206.13343; DESY-22-107.- 2022-12-29 - 27 p. - Published in : JHEP 2212 (2022) 164 Fulltext: document - PDF; 2206.13343 - PDF;

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$H_0$ tension or $M$ overestimation? / Mazo, Brayan Yamid Del Valle (ICRA, Pescara ; Unlisted, CO) ; Romano, Antonio Enea (CERN ; ICRA, Pescara ; Unlisted, CO) ; Quintero, Maryi Alejandra Carvajal (ICRA, Pescara ; Unlisted, CO)
There is a strong discrepancy between the value of the Hubble parameter $H_0^P$ obtained from large scale observations such as the Planck mission, and the small scale value $H_0^R$, obtained from low redshift supernovae (SNe). The value of the absolute magnitude $M^{Hom}$ used as prior in analyzing observational data is obtained from low-redshift SNe, assuming a homogeneous Universe, but the distance of the anchors used to calibrate the SNe to obtain $M$ would be affected by a local inhomogeneity, making it inconsistent to test the Copernican principle using $M^{Hom}$, since $M$ estimation itself is affected by local inhomogeneities. [...]
arXiv:2202.11852.- 2022-07-12 - 7 p. - Published in : Eur. Phys. J. C 82 (2022) 610 Fulltext: 2202.11852 - PDF; document - PDF;

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Impact of jet-production data on the next-to-next-to-leading-order determination of HERAPDF2.0 parton distributions / H1 Collaboration
The HERAPDF2.0 ensemble of parton distribution functions (PDFs) was introduced in 2015. The final stage is presented, a next-to-next-to-leading-order (NNLO) analysis of the HERA data on inclusive deep inelastic $ep$ scattering together with jet data as published by the H1 and ZEUS collaborations. [...]
arXiv:2112.01120; DESY-21-206.- 2022-03-21 - 43 p. - Published in : Eur. Phys. J. C 82 (2022) 243 Fulltext: 2112.01120 - PDF; document - PDF;

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Azimuthal correlations in photoproduction and deep inelastic $ep$ scattering at HERA / ZEUS Collaboration
Collective behaviour of final-state hadrons, and multiparton interactions are studied in high-multiplicity $ep$ scattering at a centre-of-mass energy $\sqrt{s}=318$ GeV with the ZEUS detector at HERA. Two- and four-particle azimuthal correlations, as well as multiplicity, transverse momentum, and pseudorapidity distributions for charged-particle multiplicities $N_{\textrm ch} \geq 20$ are measured. [...]
arXiv:2106.12377; DESY-21-099.- 2021-12-16 - 27 p. - Published in : JHEP 2112 (2021) 102 Fulltext: document - PDF; 2106.12377 - PDF;

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Combining gravitational and electromagnetic waves observations to investigate the Hubble tension / Mazo, Brayan Yamid Del Valle (ICRA, Pescara) ; Romano, Antonio Enea (CERN ; ICRA, Pescara) ; Quintero, Maryi Alejandra Carvajal
Recent estimations of the Hubble parameter $H_0$ based on gravitational waves (GW) observations can be used to shed some light on the discrepancy between the value of the Hubble parameter $H_0^P$ obtained from large scale observations such as the Planck mission, and the small scale value $H_0^R$, obtained from low redshift supernovae (SNe) [...]
arXiv:1912.12465. - 27 p.
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Develop streaming pipelines and analytics solutions for CERN’s IoT Platform / Quintero Vallejos, Natacha Andrea (speaker)
2018 - 314. CERN openlab promoted events; CERN openlab summer students' lightning talks 2 External links: Talk details; Event details In : CERN openlab summer students' lightning talks 2

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Design and Construction of a First Prototype Muon Tomography System with GEM Detectors for the Detection of Nuclear Contraband / Hohlmann, M. (Florida Inst. Tech.) ; Gnanvo, K. (Florida Inst. Tech.) ; Grasso, L. (Florida Inst. Tech.) ; Locke, J.B. (Florida Inst. Tech.) ; Quintero, A. (Florida Inst. Tech.) ; Mitra, D. (Florida Inst. Tech.)
Current radiation portal monitors at sea ports and international borders that employ standard radiation detection techniques are not very sensitive to nuclear contraband that is well shielded to absorb emanating radiation. Muon Tomography (MT) based on the measurement of multiple scattering of atmospheric cosmic ray muons traversing cargo or vehicles that contain high-Z material is a promising passive interrogation technique for solving this problem. [...]
arXiv:0911.3203.- 2009 - 5 p. - Published in : 10.1109/NSSMIC.2009.5402470 Preprint: PDF; External link: Preprint
In : IEEE Nuclear Science Symposium And Medical Imaging Conference, Orlando, FL, USA, 25 Oct - 31 Oct 2009, pp.971-975

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Vegeu també: autors amb noms similars
40	Quintero, A
5	Quintero, A D
4	Quintero, Amilkar
1	Quintero, Amilkar S
1	Quintero, Antonio

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