Feebly-interacting particles: FIPs 2022 Workshop Report

Journal Article · 10 December 2023 · Eur.Phys.J.C

DOI: https://doi.org/10.1140/epjc/s10052-023-12168-5 · OSTI ID:2318669

Antel, C. ^[1]; Battaglieri, M. ^[2]; Beacham, J. ^[3]; Boehm, C. ^[4]; Buchmüller, O. ^[5]; Calore, F. ^[6]; Carenza, P. ^[7]; Chauhan, B.  ^[8]; Cladè, P. ^[9]; Coloma, P. ^[10]; Crivelli, P. ^[11]; Dandoy, V. ^[12]; Darmé, L. ^[13]; Dey, B. ^[14]; Deppisch, F. F. ^[15]; De Roeck, A. ^[16]; Drewes, M. ^[17]; Echenard, B. ^[18]; Flambaum, V. V. ^[19]; Foldenauer, P. ^[10] ; Gatti, C. ^[20]; Giannotti, M.  ^[21]; Golutvin, A. ^[5]; Gonzalez-Garcia, M. C. ^[22]; Gori, S. ^[23]; Goudzovski, E. ^[24]; Granelli, A.  ^[25]; Grote, H. ^[26]; Guellati-Khelifa, S. ^[27]; Hajer, J.  ^[28]; Harris, P. ^[29]; Hearty, C. ^[30]; Heuchel, D. ^[31]; Hostert, M.  ^[32]; Junius, S. ^[33]; Kahlhoefer, F. ^[34]; Klaric, J. ^[17]; Kling, F. ^[31]; Klose, P. ^[35]; Knolle, J. ^[36]; Kopp, J. ^[37]; Kwon, O. ^[38]; Lantwin, O. ^[39]; Lanfranchi, G.  ^[20]; Li, L.  ^[40]; Lindner, A. ^[31]; Lopez-Pavon, J.  ^[41]; Marocco, J. ^[42]; Martin, J. W. ^[43]; Middleton, S. ^[18]; Milstead, S. ^[44]; Oceano, I. ^[31]; O’Hare, C.A. J.  ^[4]; Paoloni, A. ^[20]; Pascoli, S. ^[25]; Petcov, S. T. ^[45]; Pospelov, M. ^[32]; Pöttgen, R. ^[46]; Raggi, M. ^[47]; Ripellino, G.  ^[48]; Samsonov, I. B. ^[19]; Sandner, S.  ^[41]; Söldner-Rembold, S. ^[49]; Shelton, J.  ^[50]; Song, N. ^[51]; Sun, C.  ^[52]; Stadnik, Y. V.  ^[4]; Tastet, J.-L.  ^[53]; Toro, N.  ^[54]; Tran, N. ^[55]; Trevisani, N. ^[56]; Ulmer, S. ^[57]; Urrea, S.  ^[41]; Velghe, B. ^[58]; Wallisch, B.  ^[59]; Wong, Y.Y. Y.  ^[19]; Zorbilmez, C. ^[60]; Zurek, K.  ^[18]

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1. Geneva U.
2. INFN, Genoa
3. Duke U.
4. Sydney U.
5. Imperial Coll., London
6. Annecy, LAPTH
7. Stockholm U., OKC
8. U. Iowa, Iowa City
9. Paris, Lab. Kastler Brossel
10. Madrid, IFT; Madrid, Autonoma U.
11. Zurich, ETH
12. KIT, Karlsruhe, IAP
13. IP2I, Lyon
14. Eotvos U.
15. University Coll. London
16. CERN
17. Louvain U., CP3
18. Caltech
19. New South Wales U.
20. Frascati
21. Barry U.
22. Barcelona U.; ICREA, Barcelona; Barcelona, Autonoma U.; YITP, Stony Brook
23. UC, Santa Cruz; UC, Santa Cruz, Inst. Part. Phys.
24. Birmingham U.
25. Bologna U.; INFN, Bologna
26. China West Normal U.
27. Paris, Lab. Kastler Brossel; CNAM, Paris
28. Lisbon, CFTP
29. MIT
30. British Columbia U.
31. DESY
32. Cambridge U., DAMTP; Perimeter Inst. Theor. Phys.; Minnesota U.; Minnesota U., Theor. Phys. Inst.
33. Brussels U.
34. KIT, Karlsruhe, IKP; KIT, Karlsruhe, TTP
35. Bern U.
36. Gent U.
37. CERN; U. Mainz, PRISMA; Mainz U., Inst. Phys.
38. IBS, Daejeon, CAPP
39. Unlisted
40. Brown U.
41. Valencia U.; Valencia U., IFIC
42. LBL, Berkeley
43. Winnipeg U.
44. Stockholm U.
45. SISSA, Trieste; INFN, Trieste; Tokyo U., IPMU
46. Lund U.
47. INFN, Rome; U. Rome La Sapienza (main)
48. Uppsala U.
49. Manchester U.
50. Illinois U., Urbana
51. Liverpool U., Dept. Math.
52. Los Alamos Natl. Lab., Theor. Div.
53. Madrid, IFT
54. SLAC
55. Fermilab
56. KIT, Karlsruhe
57. Heinrich Heine U., Dusseldorf; Wako, RIKEN
58. TRIUMF
59. Stockholm U., OKC; U. Texas, Austin (main)
60. Mersin U.

Particle physics today faces the challenge of explaining the mystery of dark matter, the origin of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent fine-tuning of the electro-weak scale, and many other aspects of fundamental physics. Perhaps the most striking frontier to emerge in the search for answers involves new physics at mass scales comparable to familiar matter, below the GeV-scale, or even radically below, down to sub-eV scales, and with very feeble interaction strength. New theoretical ideas to address dark matter and other fundamental questions predict such feebly interacting particles (FIPs) at these scales, and indeed, existing data provide numerous hints for such possibility. A vibrant experimental program to discover such physics is under way, guided by a systematic theoretical approach firmly grounded on the underlying principles of the Standard Model. This document represents the report of the FIPs 2022 workshop, held at CERN between the 17 and 21 October 2022 and aims to give an overview of these efforts, their motivations, and the decadal goals that animate the community involved in the search for FIPs.

• Research Organization: Paris, Lab. Kastler Brossel; Bern U.; Tokyo U., IPMU; University Coll. London; CNAM, Paris; SISSA, Trieste; Louvain U., CP3; IBS, Daejeon, CAPP; New South Wales U.; Eotvos U.; MIT; Valencia U.; Unlisted; Lisbon, CFTP; Madrid, IFT; IP2I, Lyon; U. Rome La Sapienza (main); Minnesota U., Theor. Phys. Inst.; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); British Columbia U.; INFN, Rome; Brown U.; ICREA, Barcelona; Zurich, ETH; Manchester U.; TRIUMF; Lund U.; UC, Santa Cruz, Inst. Part. Phys.; Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Heinrich Heine U., Dusseldorf; SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); China West Normal U.; KIT, Karlsruhe, IKP; Stockholm U.; Barcelona U.; Annecy, LAPTH; U. Texas, Austin (main); Brussels U.; Wako, RIKEN; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Valencia U., IFIC; KIT, Karlsruhe; DESY; Perimeter Inst. Theor. Phys.; Sydney U.; YITP, Stony Brook; Caltech; Duke U.; Cambridge U., DAMTP; Stockholm U., OKC; CERN; Mainz U., Inst. Phys.; Madrid, Autonoma U.; Geneva U.; UC, Santa Cruz; Birmingham U.; Barcelona, Autonoma U.; Uppsala U.; Illinois U., Urbana; INFN, Bologna; KIT, Karlsruhe, TTP; Liverpool U., Dept. Math.; U. Mainz, PRISMA; INFN, Genoa; Bologna U.; Winnipeg U.; INFN, Trieste; Gent U.; U. Iowa, Iowa City; KIT, Karlsruhe, IAP; Frascati; Barry U.; Imperial Coll., London; Minnesota U.; Mersin U.
• Sponsoring Organization: US Department of Energy
• Grant/Contract Number: AC02-07CH11359; 89243024CSC000002
• OSTI ID: 2318669
• Report Number(s): CERN-TH-2023-061; DESY-23-050; FERMILAB-PUB-23-149-PPD; INFN-23-14-LNF; JLAB-PHY-23-3789; LA-UR-23-21432; MITP-23-015; oai:inspirehep.net:2656339; arXiv:2305.01715
• Journal Information: Eur.Phys.J.C, Journal Name: Eur.Phys.J.C Journal Issue: 12 Vol. 83
• Country of Publication: United States
• Language: English