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Quadrupole and octupole collectivity in the semi-magic nucleus 80206Hg126
/ Morrison, L (Surrey U.) ; Hadyńska-Klȩk, K (Warsaw U., Heavy Ion Lab ; Surrey U.) ; Podolyák, Zs (Surrey U.) ; Gaffney, L P (Liverpool U. ; CERN) ; Zielińska, M (IRFU, Saclay) ; Brown, B A (Michigan State U., East Lansing (main)) ; Grawe, H (Darmstadt, GSI) ; Stevenson, P D (Surrey U.) ; Berry, T (Surrey U.) ; Boukhari, A (CSNSM, Orsay) et al.
The first low-energy Coulomb-excitation measurement of the radioactive, semi-magic, two proton-hole nucleus 206Hg, was performed at CERN's recently-commissioned HIE-ISOLDE facility. Two γ rays depopulating low-lying states in 206Hg were observed. [...]
2023 - 5 p.
- Published in : Phys. Lett. B 838 (2023) 137675
Fulltext: PDF;
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3.
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TF08 Snowmass Report: BSM Model Building
/ Fox, Patrick J. (Fermilab) ; Kribs, Graham D. (Oregon U.) ; Murayama, Hitoshi (Tokyo U., IPMU ; UC, Berkeley ; LBL, Berkeley) ; Aboubrahim, Amin (Munster U., ITP) ; Agrawal, Prateek (Oxford U., Theor. Phys.) ; Altmannshofer, Wolfgang (UC, Santa Cruz ; UC, Santa Cruz, Inst. Part. Phys.) ; Baer, Howard (Oklahoma U.) ; Banerjee, Avik (Chalmers U. Tech.) ; Barger, Vernon (Wisconsin U., Madison) ; Batell, Brian (Pittsburgh U.) et al.
We summarize the state of Beyond the Standard Model (BSM) model building in particle physics for Snowmass 2021, focusing mainly on several whitepaper contributions to BSM model building (TF08) and closely related areas..
arXiv:2210.03075 ; FERMILAB-PUB-22-448-T.
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44.
Fermilab Library Server - Snowmass 2021 - eConf - Fulltext - Fulltext
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TF07 Snowmass Report: Theory of Collider Phenomena
/ Maltoni, F. (Louvain U., CP3 ; INFN, Bologna ; U. Bologna, DIFA) ; Su, S. (Arizona U.) ; Thaler, J. (MIT, Cambridge, CTP ; IAIFI, Cambridge ; Harvard U.) ; Aarrestad, T.K. (CERN) ; Aboubrahim, A. (Munster U., ITP) ; Adhikari, S. (Kansas U. ; Johns Hopkins U.) ; Agapov, I. (DESY) ; Agashe, K. (Maryland U.) ; Agrawal, P. (Oxford U., Theor. Phys.) ; Airen, S. (Maryland U.) et al.
Theoretical research has long played an essential role in interpreting data from high-energy particle colliders and motivating new accelerators to advance the energy and precision frontiers. [...]
arXiv:2210.02591 ; FERMILAB-FN-1203-QIS.
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22.
Fermilab Library Server - eConf - Fulltext - Fulltext
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Cosmology with the Laser Interferometer Space Antenna
/ LISA Cosmology Working Group Collaboration
The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravitational-wave backgrounds and their implications for early universe and particle physics, from the MeV to the Planck scale. However, the range of potential cosmological applications of gravitational wave observations extends well beyond these two objectives. [...]
arXiv:2204.05434; LISA CosWG-22-03; FERMILAB-PUB-22-349-SCD.-
2023-08-28 - 176 p.
- Published in : Living Rev. Relativ. 26 (2023) 5
Fulltext: jt - PDF; 2204.05434 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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6.
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Solving Scattering in N=4 Super-Yang-Mills Theory
/ Arkani-Hamed, Nima (Princeton, Inst. Advanced Study) ; Dixon, Lance J. (SLAC) ; McLeod, Andrew J. (CERN ; UCLA) ; Spradlin, Marcus (Brown U.) ; Trnka, Jaroslav (UC, Davis, QMAP) ; Volovich, Anastasia (Brown U.)
As part of the Snowmass community planning exercise, we highlight an ongoing program of research into the structure of scattering amplitudes in $N$ = 4 super-Yang-Mills theory, particularly in the planar limit of a large number of colors. [...]
arXiv:2207.10636 ; CERN-TH-2022-123 ; SLAC-PUB-17692.
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31 p.
Fulltext
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New horizons for fundamental physics with LISA
/ LISA Collaboration
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitational interaction is both strong and dynamical. In this white paper, the Fundamental Physics Working Group of the LISA Consortium summarizes the current topics in fundamental physics where LISA observations of GWs can be expected to provide key input. [...]
arXiv:2205.01597.-
2022-06-30 - 116 p.
- Published in : Living Rev. Relativ. 25 (2022) 4
Fulltext: 2205.01597 - PDF; document - PDF;
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Functions Beyond Multiple Polylogarithms for Precision Collider Physics
/ Bourjaily, Jacob L. (Penn State U., University Park, IGC ; Bohr Inst.) ; Broedel, Johannes (Zurich, ETH) ; Chaubey, Ekta (Turin U. ; INFN, Turin) ; Duhr, Claude (Bonn U.) ; Frellesvig, Hjalte (Bohr Inst.) ; Hidding, Martijn (Uppsala U.) ; Marzucca, Robin (Bohr Inst.) ; McLeod, Andrew J. (CERN ; UCLA) ; Spradlin, Marcus (Brown U.) ; Tancredi, Lorenzo (Munich, Tech. U.) et al.
Feynman diagrams constitute one of the essential ingredients for making precision predictions for collider experiments. [...]
arXiv:2203.07088 ; BONN-TH-2022-05 ; UUITP-11/22 ; CERN-TH-2022-029 ; TUM-HEP-1391/22,
HU-EP-22/08 ; MITP-22-022.
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56 p.
eConf - Fulltext
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A Theory of Dark Pions
/ Cheng, Hsin-Chia (UC, Davis, QMAP) ; Li, Lingfeng (Hong Kong U. Sci. Tech. ; Brown U.) ; Salvioni, Ennio (CERN ; Padua U., Astron. Dept.)
We present a complete model of a dark QCD sector with light dark pions, broadly motivated by hidden naturalness arguments. The dark quarks couple to the Standard Model via irrelevant $Z$- and Higgs-portal operators, which encode the low-energy effects of TeV-scale fermions interacting through Yukawa couplings with the Higgs field. [...]
arXiv:2110.10691; CERN-TH-2021-150.-
2022-01-21 - 52 p.
- Published in : JHEP 2201 (2022) 122
Fulltext: document - PDF; 2110.10691 - PDF;
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Competition between allowed and first-forbidden $β$ decays of $^{208}$At and expansion of the $^{208}$Po level scheme
/ Brunet, M (Surrey U.) ; Podolyák, Zs (Surrey U.) ; Berry, T A (Surrey U.) ; Brown, B A (Michigan State U., NSCL) ; Carroll, R J (Surrey U.) ; Lica, R (CERN ; Bucharest, IFIN-HH) ; Sotty, Ch (Bucharest, IFIN-HH ; Leuven U.) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Borge, M J G (CERN) ; Cubiss, J G (CERN ; Madrid U.) et al.
The structure of $^{208}$Po populated through the EC/$β^+$ decay of $^{208}$At is investigated using $γ$-ray spectroscopy at the ISOLDE Decay Station. The presented level scheme contains 27 new excited states and 43 new transitions, as well as a further 50 previously observed $γ$ rays which have been (re)assigned a position. [...]
2021 - 13 p.
- Published in : Phys. Rev. C 103 (2021) 054327
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