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Qibocal: an open-source framework for calibration of self-hosted quantum devices
/ Pasquale, Andrea (Milan U. ; Technol. Innovation Inst., UAE ; INFN, Milan ; INFN, Milan Bicocca) ; Pedicillo, Edoardo (Milan U. ; Technol. Innovation Inst., UAE) ; Cereijo, Juan (Technol. Innovation Inst., UAE) ; Ramos-Calderer, Sergi (Technol. Innovation Inst., UAE ; ICC, Barcelona U.) ; Candido, Alessandro (CERN) ; Palazzo, Gabriele (Technol. Innovation Inst., UAE ; Milan Bicocca U. ; Unlisted, IT) ; Carobene, Rodolfo (Milan Bicocca U. ; INFN, Milan Bicocca) ; Gobbo, Marco (Milan Bicocca U. ; INFN, Milan Bicocca) ; Efthymiou, Stavros (Technol. Innovation Inst., UAE) ; Tan, Yuanzheng Paul (Nanyang Technol. U.) et al.
Calibration of quantum devices is fundamental to successfully deploy quantum algorithms on current available quantum hardware. [...]
TIF-UNIMI-2024-16 ; CERN-TH-2024-160 ; arXiv:2410.00101.
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An FONLL prescription with coexisting flavor number PDFs
/ Barontini, Andrea (INFN, Milan ; Milan U.) ; Candido, Alessandro (INFN, Milan ; Milan U. ; CERN) ; Hekhorn, Felix (INFN, Milan ; Milan U. ; Jyvaskyla U. ; Helsinki U.) ; Magni, Giacomo (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Stegeman, Roy (U. Edinburgh, Higgs Ctr. Theor. Phys.)
We present a new prescription to account for heavy quark mass effects in the determination of parton distribution functions (PDFs) based on the FONLL scheme. Our prescription makes explicit use of the freedom to choose the number of active flavors at a given scale and, thus, use coexisting PDFs with different active flavor number. [...]
arXiv:2408.07383; Nikhef-2024-014; Edinburgh 2024/5; TIF-UNIMI-2024-13.-
2024-10-01 - 17 p.
- Published in : JHEP 2410 (2024) 004
Fulltext: document - PDF; 2408.07383 - PDF;
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An open-source framework for quantum hardware control
/ Pedicillo, Edoardo (Technol. Innovation Inst., UAE ; Milan U.) ; Candido, Alessandro (CERN) ; Efthymiou, Stavros (Technol. Innovation Inst., UAE) ; Sargsyan, Hayk (Technol. Innovation Inst., UAE) ; Tan, Yuanzheng Paul (Nanyang Technol. U.) ; Cereijo, Juan (Technol. Innovation Inst., UAE) ; Khoo, Jun Yong (A-STAR, Singapore) ; Pasquale, Andrea (Technol. Innovation Inst., UAE ; Milan U.) ; Robbiati, Matteo (Milan U. ; CERN) ; Carrazza, Stefano (Technol. Innovation Inst., UAE ; Milan U. ; CERN)
The development of quantum computers needs reliable quantum hardware and tailored software for controlling electronics specific to various quantum platforms. [...]
TIF-UNIMI-2024-10 CERN-TH-2024-126 ; CERN-TH-2024-126 ; arXiv:2407.21737.
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The path to $\hbox {N}^3\hbox {LO}$ parton distributions
/ NNPDF Collaboration
We extend the existing leading (LO), next-to-leading (NLO), and next-to-next-to-leading order (NNLO) NNPDF4.0 sets of parton distribution functions (PDFs) to approximate next-to-next-to-next-to-leading order (aN$^3$LO). We construct an approximation to the N$^3$LO splitting functions that includes all available partial information from both fixed-order computations and from small and large $x$ resummation, and estimate the uncertainty on this approximation by varying the set of basis functions used to construct the approximation. [...]
arXiv:2402.18635; Nikhef-2023-020; TIF-UNIMI-2023-23; Edinburgh 2023/29.-
2024-07-03 - 59 p.
- Published in : Eur. Phys. J. C 84 (2024) 659
Fulltext: 2402.18635 - PDF; Publication - PDF;
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Yadism: Yet Another Deep-Inelastic Scattering Module
/ Candido, Alessandro (INFN, Milan ; Milan U. ; CERN) ; Hekhorn, Felix (INFN, Milan ; Milan U. ; Jyvaskyla U. ; Helsinki U.) ; Magni, Giacomo (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Rabemananjara, Tanjona R. (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Stegeman, Roy (U. Edinburgh, Higgs Ctr. Theor. Phys.)
We present yadism, a library for the evaluation of both polarized and unpolarized deep-inelastic scattering (DIS) structure functions and cross sections up to N$^3$LO in perturbative QCD. The package provides computations of observables in fixed-flavor and zero-mass variable flavor number schemes. [...]
arXiv:2401.15187; CERN-TH-2024-015; Edinburgh 2024/4; Nikhef-2024-002.-
2024-07-15 - 28 p.
- Published in : Eur. Phys. J. C 84 (2024) 697
Fulltext: document - PDF; 2401.15187 - PDF;
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Photons in the proton: implications for the LHC
/ NNPDF Collaboration
We construct a set of parton distribution functions (PDFs), based on the recent NNPDF4.0 PDF set, that also include a photon PDF. The photon PDF is constructed using the LuxQED formalism, while QED evolution accounting for O(alpha), O(alpha alphas) and O(alpha^2) corrections is implemented and benchmarked by means of the EKO code. [...]
arXiv:2401.08749; TIF-UNIMI-2023-17; Edinburgh 2023/19; CERN-TH-2023-159.-
2024-05-28 - 32 p.
- Published in : Eur. Phys. J. C 84 (2024) 540
Fulltext: document - PDF; 2401.08749 - PDF;
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The intrinsic charm quark valence distribution of the proton
/ Ball, Richard D. (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Candido, Alessandro (INFN, Milan ; Milan U. ; CERN) ; Cruz-Martinez, Juan (CERN) ; Forte, Stefano (INFN, Milan ; Milan U.) ; Giani, Tommaso (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Hekhorn, Felix (INFN, Milan ; Milan U. ; Jyvaskyla U. ; Helsinki U.) ; Magni, Giacomo (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Nocera, Emanuele R. (Turin U.) ; Rojo, Juan (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Stegeman, Roy (U. Edinburgh, Higgs Ctr. Theor. Phys.)
/NNPDF Collaboration
We provide a first quantitative indication that the wave function of the proton contains unequal distributions of charm quarks and antiquarks, i.e. a nonvanishing intrinsic valence charm distribution. [...]
arXiv:2311.00743; Edinburgh 2023/22; TIF-UNIMI-2023-28; Nikhef 2023-012,
CERN-TH-2023-196.-
2024-05-01 - 11 p.
- Published in : Phys. Rev. D 109 (2024) L091501
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