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Pion and Kaon Structure at the Electron-Ion Collider
/ Aguilar, Arlene C. (Campinas State U.) ; Ahmed, Zafir (Regina U.) ; Aidala, Christine (Michigan U.) ; Ali, Salina (Catholic U.) ; Andrieux, Vincent (Illinois U., Urbana (main) ; CERN) ; Arrington, John (Argonne (main)) ; Bashir, Adnan (IFM-UMSNH, Michoacan) ; Berdnikov, Vladimir (Catholic U.) ; Binosi, Daniele (ECT, Trento ; Fond. Bruno Kessler, Trento) ; Chang, Lei (Nankai U.) et al.
Understanding the origin and dynamics of hadron structure and in turn that of atomic nuclei is a central goal of nuclear physics. This challenge entails the questions of how does the roughly 1 GeV mass-scale that characterizes atomic nuclei appear; why does it have the observed value; and, enigmatically, why are the composite Nambu-Goldstone (NG) bosons in quantum chromodynamics (QCD) abnormally light in comparison? In this perspective, we provide an analysis of the mass budget of the pion and proton in QCD; discuss the special role of the kaon, which lies near the boundary between dominance of strong and Higgs mass-generation mechanisms; and explain the need for a coherent effort in QCD phenomenology and continuum calculations, in exa-scale computing as provided by lattice QCD, and in experiments to make progress in understanding the origins of hadron masses and the distribution of that mass within them. [...]
arXiv:1907.08218; NJU-INP 001/19.-
2019-10-31 - 16 p.
- Published in : Eur. Phys. J. A 55 (2019) 190
Fulltext: PDF;
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2.
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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
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3.
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$\omega \to 3\pi$ and $\omega\pi^{0}$ transition form factor revisited
/ Albaladejo, M. (Jefferson Lab) ; Danilkin, I. (Mainz U., Inst. Kernphys. ; U. Mainz, PRISMA) ; Gonzalez-Solis, S. (Indiana U. ; Indiana U., CEEM) ; Winney, D. (Indiana U. ; Indiana U., CEEM) ; Fernandez-Ramirez, C. (Mexico U., CEN) ; Blin, A.N. Hiller (Jefferson Lab) ; Mathieu, V. (Madrid, IFT) ; Mikhasenko, M. (CERN) ; Pilloni, A. (ECT, Trento ; INFN, Genoa) ; Szczepaniak, A. (Jefferson Lab ; Indiana U. ; Indiana U., CEEM)
/JPAC Collaboration
In light of recent experimental results, we revisit the dispersive analysis of the $\omega \to 3\pi$ decay amplitude and of the $\omega\pi^0$ transition form factor. Within the framework of the Khuri-Treiman equations, we show that the $\omega \to 3\pi$ Dalitz-plot parameters obtained with a once-subtracted amplitude are in agreement with the latest experimental determination by BESIII. [...]
arXiv:2006.01058; JLAB-THY-20-3200.-
2020-06-02 - 18 p.
- Published in : Eur. Phys. J. C 80 (2020) 1107
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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4.
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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
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5.
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$\pi^-p\to\eta^{(\prime)}\, \pi^- p$ in the double-Regge region
/ Bibrzycki, L. (Pedagogical U., Cracow ; Indiana U. ; Jefferson Lab) ; Fernandez-Ramirez, C. (Mexico U., ICN) ; Mathieu, V. (ICC, Barcelona U. ; Madrid U.) ; Mikhasenko, M. (CERN) ; Albaladejo, M. (Jefferson Lab) ; Blin, A.N. Hiller (Jefferson Lab) ; Pilloni, A. (INFN, Rome) ; Szczepaniak, A.P. (Indiana U. ; Jefferson Lab ; Indiana U., CEEM)
/JPAC Collaboration
The production of $\eta^{(\prime)}\pi$ pairs constitutes one of the golden channels to search for hybrid exotics, with explicit gluonic degrees of freedom. Understanding the dynamics and backgrounds associated to $\eta^{(\prime)}\pi$ production above the resonance region is required to impose additional constraints to the resonance extraction. [...]
arXiv:2104.10646; JLAB-THY-21-3354.-
2021-07-23 - 25 p.
- Published in : Eur. Phys. J. C
- Published in : Eur. Phys. J. C
Erratum: Bibrzycki2021_Article_ErratumToPi-pRightarrowEtaPrim - PDF; Erratum - PDF; Fulltext: 2104.10646 - PDF; document - PDF; Publication: PDF; External link: JLab Document Server
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6.
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Artificial Intelligence for the Electron Ion Collider (AI4EIC)
/ Allaire, C. (IJCLab, Orsay) ; Ammendola, R. (INFN, Rome2) ; Aschenauer, E.-C. (Brookhaven) ; Balandat, M. (SLAC) ; Battaglieri, M. (INFN, Genoa) ; Bernauer, J. (SUNY, Stony Brook ; Yale U. ; RIKEN BNL) ; Bondì, M. (INFN, Catania) ; Branson, N. (Messiah Coll. ; Drexel U.) ; Britton, T. (Jefferson Lab) ; Butter, A. (LPNHE, Paris) et al.
The Electron-Ion Collider (EIC), a state-of-the-art facility for studying the strong force, is expected to begin commissioning its first experiments in 2028. This is an opportune time for artificial intelligence (AI) to be included from the start at this facility and in all phases that lead up to the experiments. [...]
arXiv:2307.08593; FERMILAB-CONF-23-407-AD.-
2024-02-15 - 27 p.
- Published in : Comput. Softw. Big Sci. 8 (2024) 5
Fulltext: 2307.08593 - PDF; 154e04fa6e7cde7b5961a079c6081ef6 - PDF; Fulltext from Publisher: document - PDF; s41781-024-00113-4 - PDF; External link: Fermilab Library Server
In : Artificial Intelligence for the Electron Ion Collider (AI4EIC), Washington, DC, United States, 28 Nov - 1 Dec 2023, pp.5
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7.
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The present and future of QCD
/ Achenbach, P. (Jefferson Lab) ; Adhikari, D. (Virginia Tech.) ; Afanasev, A. (George Washington U. ; Jefferson Lab) ; Afzal, F. (Bonn U., HISKP ; Bonn U.) ; Aidala, C.A. (Michigan U.) ; Al-bataineh, A. (Jordan U. Sci. Tech. ; Yarmouk U. ; Kansas U.) ; Almaalol, D.K. (Illinois U., Urbana ; Illinois U., Urbana (main)) ; Amaryan, M. (Old Dominion U. ; Old Dominion U. (main)) ; Androić, D. (Zagreb U.) ; Armstrong, W.R. (Argonne ; Argonne, PHY) et al.
This White Paper presents the community inputs and scientific conclusions from the Hot and Cold QCD Town Meeting that took place September 23-25, 2022 at MIT, as part of the Nuclear Science Advisory Committee (NSAC) 2023 Long Range Planning process. A total of 424 physicists registered for the meeting. [...]
arXiv:2303.02579; JLAB-PHY-23-3808.-
2024-04-15 - 111 p.
- Published in : Nucl. Phys. A 1047 (2024) 122874
Fulltext: 2303.02579 - PDF; Publication - PDF; External link: JLab Document Server
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8.
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Three-body scattering: Ladders and Resonances
/ Mikhasenko, M. (Bonn U., HISKP ; CERN) ; Wunderlich, Y. (Bonn U., HISKP) ; Jackura, A. (Indiana U., CEEM ; Indiana U.) ; Mathieu, V. (Jefferson Lab ; Madrid U.) ; Pilloni, A. (ECT, Trento ; INFN, Genoa ; Fond. Bruno Kessler, Trento) ; Ketzer, B. (Bonn U., HISKP) ; Szczepaniak, A.P. (Indiana U., CEEM ; Indiana U. ; Jefferson Lab)
We discuss unitarity constraints on the dynamics of a system of three interacting particles. We show how the short-range interaction that describes three-body resonances can be separated from the long-range exchange processes, in particular the one-pion-exchange process. [...]
arXiv:1904.11894; JLAB-THY-19-2924.-
2019-08-14 - 15 p.
- Published in : JHEP 1908 (2019) 080
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; External link: JLab Document Server
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9.
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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
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