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CERN Document Server 39 notices trouvées  1 - 10suivantfin  aller vers la notice: La recherche a duré 0.63 secondes. 
1.
Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab / Accardi, A. (Hampton U.) ; Achenbach, P. (Jefferson Lab) ; Adhikari, D. (Virginia Tech.) ; Afanasev, A. (George Washington U.) ; Akondi, C.S. (Florida State U.) ; Akopov, N. (Yerevan Phys. Inst.) ; Albaladejo, M. (Valencia U., IFIC) ; Albataineh, H. (Texas A-M ; HARC, Woodlands) ; Albrecht, M. (Jefferson Lab) ; Almeida-Zamora, B. (Sonora U.) et al.
This document presents the initial scientific case for upgrading the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (JLab) to 22 GeV. It is the result of a community effort, incorporating insights from a series of workshops conducted between March 2022 and April 2023. [...]
arXiv:2306.09360; JLAB-PHY-23-3840; JLAB-THY-23-3848.- 2024-09-04 - 139 p. - Published in : Eur. Phys. J. A 60 (2024) 173 Fulltext: PDF; External link: JLab Document Server
2.
Hyperon signatures in the PANDA experiment at FAIR / PANDA Collaboration
We present a detailed simulation study of the signatures from the sequential decays of the triple-strange pbar p -> Ω+Ω- -> K+ΛbarK- Λ -> K+pbarπ+K-pπ- process in the PANDA central tracking system with focus on hit patterns and precise time measurement. [...]
arXiv:2304.11977.
- 29 p.
Fulltext
3.
Electron-beam energy reconstruction for neutrino oscillation measurements / CLAS Collaboration
Neutrinos exist in one of three types or ‘flavours’—electron, muon and tau neutrinos—and oscillate from one flavour to another when propagating through space. This phenomena is one of the few that cannot be described using the standard model of particle physics (reviewed in ref. 1), and so its experimental study can provide new insight into the nature of our Universe (reviewed in ref. 2). [...]
2021 - 20 p. - Published in : Nature 599 (2021) 565-570
4.
Photoproduction of the $f_2(1270)$ meson using the CLAS detector / CLAS Collaboration
The quark structure of the $f_2(1270)$ meson has, for many years, been assumed to be a pure quark-antiquark ($q\bar{q}$) resonance with quantum numbers $J^{PC} = 2^{++}$. Recently, it was proposed that the $f_2(1270)$ is a molecular state made from the attractive interaction of two $\rho$-mesons. [...]
arXiv:2010.16006; JLAB-PHY-20-3279.- 2021-02-25 - 6 p. - Published in : Phys. Rev. Lett. 126 (2021) 082002 Fulltext: PDF; External link: JLAB
5.
A non-perturbative exploration of the high energy regime in $N_\text{f}=3$ QCD / Dalla Brida, Mattia (INFN, Milan Bicocca ; Milan Bicocca U.) ; Fritzsch, Patrick (CERN) ; Korzec, Tomasz (Wuppertal U.) ; Ramos, Alberto (Hamilton Math. Inst., Dublin) ; Sint, Stefan (Hamilton Math. Inst., Dublin) ; Sommer, Rainer (NIC, Zeuthen ; Humboldt U., Berlin) /ALPHA Collaboration
Using continuum extrapolated lattice data we trace a family of running couplings in three-flavour QCD over a large range of scales from about 4 to 128 GeV. The scale is set by the finite space time volume so that recursive finite size techniques can be applied, and Schr\"odinger functional (SF) boundary conditions enable direct simulations in the chiral limit. [...]
arXiv:1803.10230; CERN-TH-2018-060; DESY 18-044; WUB/18-01; DESY-18-044; WUB-18-01.- 2018-05-10 - 40 p. - Published in : Eur. Phys. J. C 78 (2018) 372 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
6.
Study of charmonium production in ${b}$-hadron decays and first evidence for the decay ${{{B}} ^0_{{s}}} \!\rightarrow \phi \phi \phi $ / LHCb Collaboration
Using decays to $\phi$-meson pairs, the inclusive production of charmonium states in $b$-hadron decays is studied with $pp$ collision data corresponding to an integrated luminosity of $3.0fb^{-1}$, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. Denoting by $B_C\equiv B(b\to CX)\times B(C\to\phi\phi)$ the inclusive branching fraction of a $b$ hadron to a charmonium state $C$ that decays into a pair of $\phi$ mesons, ratios $R^{C1}_{C2}\equiv B_{C1}/B_{C2}$ are determined as $R^{\chi_{c0}}_{\eta_c(1S)}=0.147\pm0.023\pm0.011$, $R^{\chi_{c1}}_{\eta_c (1S)}=0.073\pm0.016\pm0.006$, $R^{\chi_{c2}}_{\eta_c (1S)}=0.081\pm0.013\pm0.005$, $R^{\chi_{c1}}_{\chi_{c0}}=0.50\pm0.11\pm0.01$, $R^{\chi_{c2}}_{\chi_{c0}}=0.56\pm0.10\pm0.01$ and $R^{\eta_c (2S)}_{\eta_c(1S)}=0.040\pm0.011\pm0.004$. [...]
arXiv:1706.07013; LHCB-PAPER-2017-007; CERN-EP-2017-099; LHCB-PAPER-2017-007.- Springer, 2017-09-14 - 32 p. - Published in : Eur. Phys. J. C 77 (2017) 609 Article from SCOAP3: PDF; Fulltext: arXiv:1706.07013 - PDF; Paper-2017-007 - PDF; Related data file(s): ZIP; Supplementary information: ZIP; External link: Figures, tables and other information
7.
Test of lepton universality with $B^{0} \rightarrow K^{*0}\ell^{+}\ell^{-}$ decays / LHCb Collaboration
A test of lepton universality, performed by measuring the ratio of the branching fractions of the $B^{0} \rightarrow K^{*0}\mu^{+}\mu^{-}$ and $B^{0} \rightarrow K^{*0}e^{+}e^{-}$ decays, $R_{K^{*0}}$, is presented. The $K^{*0}$ meson is reconstructed in the final state $K^{+}\pi^{-}$, which is required to have an invariant mass within 100$\mathrm{\,MeV}c^2$ of the known $K^{*}(892)^{0}$ mass. [...]
arXiv:1705.05802; LHCB-PAPER-2017-013; CERN-EP-2017-100; LHCB-PAPER-2017-013.- Geneva : CERN, 2017-08-16 - 31 p. Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Figures, tables and other information
8.
Diagrammatic Hopf algebra of cut Feynman integrals: the one-loop case / Abreu, Samuel (Freiburg U.) ; Britto, Ruth (Trinity Coll., Dublin ; Hamilton Math. Inst., Dublin ; IPhT, Saclay ; Santa Barbara, KITP) ; Duhr, Claude (CERN ; Louvain U., CP3) ; Gardi, Einan (U. Edinburgh, Higgs Ctr. Theor. Phys.)
We construct a diagrammatic coaction acting on one-loop Feynman graphs and their cuts. The graphs are naturally identified with the corresponding (cut) Feynman integrals in dimensional regularization, whose coefficients of the Laurent expansion in the dimensional regulator are multiple polylogarithms (MPLs). [...]
arXiv:1704.07931; CERN-TH-2017-092; CP3-17-11; EDINBURGH-2017-09; FR-PHENO-2017-010; TCDMATH-17-09.- 2017-12-15 - 74 p. - Published in : JHEP 12 (2017) 090 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
9.
Lattice calculations and the muon anomalous magnetic moment / Marinkovic, Marina Krstic (Trinity Coll., Dublin ; CERN)
Anomalous magnetic moment of the muon, $a_{\mu}=(g_{\mu}-2)/2$, is one of the most precisely measured quantities in particle physics and it provides a stringent test of the Standard Model. The planned improvements of the experimental precision at Fermilab and at J-PARC propel further reduction of the theoretical uncertainty of $a_{\mu}$. [...]
arXiv:1704.06425; CERN-TH-2017-088.- 2017-05-26 - 8 p. - Published in : Few Body Syst. 58 (2017) 140 Preprint: PDF;
In : Light Cone 2016 : Challenges for Theory and Experiment in Hadron and Nuclear Physics on the Light Front, Lisbon, Portugal, 5 - 8 Sep 2016, pp.140
10.
A system-level model for high-speed, radiation-hard optical links in HEP experiments based on silicon Mach-Zehnder modulators / Zeiler, Marcel (CERN ; Dublin City U.) ; Detraz, S (CERN) ; Olantera, L (CERN) ; Sigaud, C (CERN) ; Soos, C (CERN) ; Troska, J (CERN) ; Vasey, F (CERN)
Silicon Mach-Zehnder modulators have been shown to be relatively insensitive to displacement damage beyond a 1-MeV-equivalent neutron fluence of 3⋅10(16)n/cm(2). Recent investigations on optimized device designs have also led to a high resistance against total ionizing dose levels of above 1 MGy. [...]
2016 - Published in : JINST 11 (2016) C12059 IOP Open Access article: PDF;
In : Topical Workshop on Electronics for Particle Physics, Karlsruhe, Germany, 26 - 30 Sep 2016, pp.C12059

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