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Advancements in experimental techniques for measuring dipole moments of short-lived particles at the LHC
/ Neri, N (INFN, Milan ; Milan U. ; CERN) ; Akiba, K (NIKHEF, Amsterdam) ; Alessio, F (CERN) ; Bandiera, L (INFN, Ferrara) ; Benettoni, M (INFN, Padua ; Padua U.) ; Cai, R (CERN) ; Cardinale, R (Genoa U.) ; Cesare, S (INFN, Milan ; Milan U.) ; Citterio, M (INFN, Milan ; Milan U.) ; Coco, V (CERN) et al.
ALADDIN is a proposed fixed-target experiment at the LHC for the direct measurement of charm baryon dipole moments. The detector features a spectrometer and a Cherenkov detector, while the experimental technique is based on the phenomena of particle channelling and spin precession in bent crystals. [...]
2024 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1069 (2024) 169875
Fulltext: PDF;
In : 16th Pisa Meeting on Advanced Detectors (Pisameet 2024), La Biodola, Isola D'elba, Italy, 26 May - 1 Jun 2024, pp.169875
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ALADDIN: An Lhc Apparatus for Direct Dipole moments INvestigation
/ Akiba, K ; Alessio, F ; Benettoni, M ; Bizzeti, M ; Borgato, F ; Bucci, F ; Cardinale, R ; Cesare, S ; Citterio, M ; Coco, V et al.
Magnetic and electric dipole moments of composite or fundamental particles provide powerful probes for physics within and beyond the Standard Model. [...]
CERN-LHCC-2024-011 ; LHCC-I-041.
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2024 - mult..
Full text
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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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Summary of Topical Group on Hadron Spectroscopy (RF07) Rare Processes and Precision Frontier of Snowmass 2021
/ Lebed, R.F. (ed.) (Arizona State U.) ; Skwarnicki, T. (ed.) (Syracuse U.) ; An, L. (CERN) ; Dobbs, S. (Florida State U.) ; Fulsom, B. (PNL, Richland) ; Guo, F.-K. (Nanjing U. ; Beijing, GUCAS) ; Karliner, M. (Tel Aviv U.) ; Mitchell, R.E. (Indiana U.) ; Pilloni, A. (INFN, Messina ; INFN, Catania) ; Pompili, A. (Bari U. ; INFN, Bari) et al.
Hadron spectroscopy, the driving force of high-energy physics in its early decades, has experienced a renaissance in interest over the past 20 years due to the discovery of scores of new, potentially "exotic states" (tetraquarks, pentaquarks, hybrid mesons, glueballs), as well as the observation of many new "conventional" hadrons. [...]
arXiv:2207.14594.
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Snowmass 2021 - eConf - Fulltext
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Substructure of Multiquark Hadrons (Snowmass 2021 White Paper)
/ Brambilla, Nora (Munich, Tech. U. ; TUM-IAS, Munich ; MCQST, Munich) ; Chen, Hua-Xing (Southeast U., Nanjing) ; Esposito, Angelo (Princeton, Inst. Advanced Study) ; Ferretti, Jacopo (Jyvaskyla U.) ; Francis, Anthony (Bern U. ; Taiwan, Natl. Chiao Tung U. ; CERN) ; Guo, Feng-Kun (Beijing, Inst. Theor. Phys. ; Beijing, GUCAS) ; Hanhart, Christoph (Julich, Forschungszentrum) ; Hosaka, Atsushi (Osaka U., Res. Ctr. Nucl. Phys.) ; Jaffe, Robert L. (MIT) ; Karliner, Marek (Tel Aviv U.) et al.
In recent years there has been a rapidly growing body of experimental evidence for existence of exotic, multiquark hadrons, i.e. [...]
arXiv:2203.16583.
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47 p.
eConf - Fulltext
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Observation of sizeable $\omega$ contribution to $\chi_{c1}(3872) \to \pi^+\pi^- J/\psi$ decays
/ LHCb Collaboration
Resonant structures in the dipion mass spectrum from $\chi_{c1}(3872)\to\pi^+\pi^- J/\psi$ decays, produced via $B^+\to K^+\chi_{c1}(3872)$ decays, are analyzed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb$^{-1}$. A sizeable contribution from the isospin conserving $\chi_{c1}(3872)\to\omega J/\psi$ decay is established for the first time, $(21.4\pm2.3\pm2.0)\%$, with a significance of more than $7.1\sigma$. [...]
arXiv:2204.12597; LHCb-PAPER-2021-045; CERN-EP-2022-049.-
Geneva : CERN, 2023-07-01 - 12 p.
- Published in : Phys. Rev. D 108 (2023) L011103
Fulltext: 2204.12597 - PDF; Publication - PDF; LHCb-PAPER-2021-045 - PDF; Related data file(s): ZIP;
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Search for Darkonium in $e^+e^-$ Collisions
/ BABAR Collaboration
Collider searches for dark sectors, new particles interacting only feebly with ordinary matter, have largely focused on identifying signatures of new mediators, leaving much of dark sector structures unexplored. In particular, the existence of dark matter bound states (darkonia) remains to be investigated. [...]
arXiv:2106.08529; BABAR-PUB-21/002; SLAC-PUB-17608.-
2022-01-11 - 10 p.
- Published in : Phys. Rev. Lett. 128 (2022) 021802
Fulltext: PDF;
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