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CERN Document Server 2,050 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 1.98 sekúnd. 
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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;
Úplný záznam - Podobné záznamy
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Sum rule improved double parton distributions in position space / Diehl, M. (DESY) ; Gaunt, J.R. (CERN) ; Lang, D.M. (Regensburg U. ; Munich, Tech. U.) ; Plößl, P. (DESY) ; Schäfer, A. (Regensburg U.)
Models for double parton distributions that are realistic and consistent with theoretical constraints are crucial for a reliable description of double parton scattering. We show how an ansatz that has the correct behaviour in the limit of small transverse distance between the partons can be improved step by step, such as to fulfil the sum rules for double parton distributions with an accuracy around 10%..
arXiv:2001.10428; CERN-TH-2020-014; DESY-20-011.- 2020-05-25 - 19 p. - Published in : Eur. Phys. J. C 80 (2020) 468 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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Small instanton-induced flavor invariants and the axion potential / Bedi, Ravneet (Minnesota U.) ; Gherghetta, Tony (Minnesota U.) ; Grojean, Christophe (DESY ; Humboldt U., Berlin ; CERN) ; Guedes, Guilherme (DESY) ; Kley, Jonathan (DESY ; Humboldt U., Berlin) ; Vuong, Pham Ngoc Hoa (DESY)
Small instantons which increase the axion mass due to an appropriate modification of QCD at a UV scale $\Lambda_{\rm SI}$, can also enhance the effect of CP-violating operators to shift the axion potential minimum by an amount, $\theta_{\rm ind}$, proportional to the flavorful couplings in the SMEFT. Since physical observables must be flavor basis independent, we construct a basis of determinant-like flavor invariants that arise from instanton calculations containing the effects of dimension-six CP-odd operators at the scale $\require{cancel}\Lambda_{\cancel{\rm CP}}$. [...]
arXiv:2402.09361; CERN-TH-2024-022; DESY-24-019; HU-EP-24/05; UMN--TH--4313/24.- 2024-06-24 - 49 p. - Published in : JHEP 2406 (2024) 156 Fulltext: document - PDF; 2402.09361 - PDF;
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EUDAQ $-$ A Data Acquisition Software Framework for Common Beam Telescopes / Ahlburg, P. (Bonn U.) ; Arfaoui, S. (CERN) ; Arling, J.-H (DESY) ; Augustin, H. (Heidelberg U.) ; Barney, D. (CERN) ; Benoit, M. (Geneva U.) ; Bisanz, T. (Gottingen U., II. Phys. Inst.) ; Corrin, E. (Geneva U.) ; Cussans, D. (Bristol U.) ; Dannheim, D. (CERN) et al.
EUDAQ is a generic data acquisition software developed for use in conjunction with common beam telescopes at charged particle beam lines. Providing high-precision reference tracks for performance studies of new sensors, beam telescopes are essential for the research and development towards future detectors for high-energy physics. [...]
arXiv:1909.13725.- 2020-01-30 - 30 p. - Published in : JINST 15 (2020) P01038 Fulltext: fulltext1756754 - PDF; 1909.13725 - PDF;
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EUDAQ2 -- A Flexible Data Acquisition Software Framework for Common Test BeamsEUDAQ2—A flexible data acquisition software framework for common test beams / Liu, Y. (DESY) ; Amjad, M.S. (University Coll. London) ; Baesso, P. (Bristol U.) ; Cussans, D. (Bristol U.) ; Dreyling-Eschweiler, J. (DESY) ; Ete, R. (DESY) ; Gregor, I. (DESY) ; Huth, L. (DESY) ; Irles, A. (Orsay, LAL) ; Jansen, H. (DESY) et al.
The data acquisition software framework, EUDAQ, was originally developed to read out data from the EUDET-type pixel telescopes. This was successfully used in many test beam campaigns in which an external position and time reference were required. [...]
arXiv:1907.10600.- Geneva : CERN, 2019-10-23 - 17 p. - Published in : JINST 14 (2019) P10033-P10033 Fulltext: fulltext1746258 - PDF; 1907.10600 - PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;
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A log story short: running contributions to radiative Higgs decays in the SMEFT / Grojean, Christophe (DESY ; Humboldt U., Berlin ; CERN) ; Guedes, Guilherme (DESY) ; Roosmale Nepveu, Jasper (DESY ; Humboldt U., Berlin) ; Salla, Gabriel M. (DESY ; Sao Paulo U.)
We investigate the renormalization of the radiative decays of the Higgs to two gauge bosons in the Standard Model Effective Field Theory at mass dimension eight. Given that these are loop-level processes, their one-loop renormalization can be phenomenologically important when triggered by operators generated through the tree-level exchange of heavy particles (assuming a weakly coupled UV model). [...]
arXiv:2405.20371; CERN-TH-2024-075; DESY-24-077; HU-EP-24/15-RTG.- 2024-12-10 - 32 p. - Published in : JHEP 2412 (2024) 065 Fulltext: 2405.20371 - PDF; document - PDF;
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Design, Construction and Commissioning of a Technological Prototype of a Highly Granular SiPM-on-tile Scintillator-Steel Hadronic Calorimeter / CALICE Collaboration
The CALICE collaboration is developing highly granular electromagnetic and hadronic calorimeters for detectors at future energy frontier electron-positron colliders. After successful tests of a physics prototype, a technological prototype of the Analog Hadron Calorimeter has been built, based on a design and construction techniques scalable to a collider detector. [...]
arXiv:2209.15327; CALICE-PUB-2022-003.- 2023-11-22 - 37 p. - Published in : JINST 18 (2023) P11018 Fulltext: 2209.15327 - PDF; document - PDF;
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Resonant emittance mixing of flat beams in plasma accelerators / Diederichs, Severin (DESY ; CERN) ; Benedetti, Carlo (LBL, Berkeley) ; Pousa, Angel Ferran (DESY) ; Sinn, Alexander (DESY) ; Osterhoff, Jens (DESY ; LBL, Berkeley) ; Schroeder, Carl B. (LBL, Berkeley ; UC, Berkeley, Nucl. Eng. Dept.) ; Thévenet, Maxence (DESY)
Linear colliders rely on high-quality flat beams to achieve the desired event rate, while avoiding potentially deleterious beamstrahlung effects. [...]
arXiv:2403.05871. - 10.
Fulltext
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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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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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