2025-07-24
04:36 |
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2025-07-09
08:26 |
Superadditivity at Large Charge
/ Cohen, Timothy (CERN ; EPFL, Lausanne, LPTP ; Oregon U.) ; Fadakar, Ipak (EPFL, Lausanne, LPTP ; Pisa, Scuola Normale Superiore) ; Gomes, Andrew (EPFL, Lausanne, LPTP) ; Monin, Alexander (South Carolina U.) ; Rattazzi, Riccardo (EPFL, Lausanne, LPTP)
The weak gravity conjecture has been invoked to conjecture that the dimensions of charged operators in a CFT should obey a superadditivity relation (sometimes referred to as convexity). In this paper, we study superadditivity of the operator spectrum in theories expanded about the semi-classical saddle point that dominates correlators of large charge operators. [...]
arXiv:2503.16603; CERN-TH-2025-036.-
2025 - 27 p.
- Published in : JHEP 2507 (2025) 113
Fulltext: 2503.16603 - PDF; document - PDF;
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2025-06-14
04:36 |
Personal Memories of 50 Years of Quarkonia
/ Ellis, John (King's Coll. London ; CERN)
The world of particle physics was revolutionised in November 1974 by the discovery of the J/psi particle, the first particle to be identified as a quarkonium state composed of charm quarks and antiquarks. The charmonium interpretation of the J/psi was cemented by the subsequent observations of a spectrum of related c c̅ states, and finally by the discovery of charmed particles in 1976. [...]
arXiv:2506.10643; KCL-PH-TH/2025-22; CERN-TH-2025-115.-
2025-08-05 - 5 p.
- Published in : Nucl. Phys. B 1018 (2025) 117062
Fulltext: 2506.10643 - PDF; publication - PDF;
In : 50 Years Discovery of the J/ψ Particle (2024), Beijing, China, 20 Oct 2024, pp.117062
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2025-05-21
04:14 |
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2025-05-20
04:06 |
The LHC has ruled out supersymmetry – really?
/ Constantin, L. (LPSC, Grenoble) ; Kraml, S. (LPSC, Grenoble) ; Mahmoudi, F. (IP2I, Lyon ; CERN ; IUF, Paris)
Despite early hopes that the Large Hadron Collider (LHC) would quickly unveil supersymmetric particles, none have been detected to date. This review examines the impact of the LHC results on the viability of weak-scale supersymmetry, and discusses whether the possibility of discovering supersymmetric particles remains within reach..
arXiv:2505.11251; CERN-TH-2025-100.-
2025-07-03 - 10 p.
- Published in : Nucl. Phys. B 1018 (2025) 117012
Fulltext: 2505.11251 - PDF; document - PDF;
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2025-05-07
04:03 |
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2025-04-25
04:05 |
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2025-04-19
04:01 |
Geometry of soft scalars at one loop
/ Cohen, Timothy (CERN ; EPFL, Lausanne, LPTP ; Oregon U.) ; Fadakar, Ipak (EPFL, Lausanne, LPTP ; Pisa, Scuola Normale Superiore) ; Helset, Andreas (CERN) ; Nardi, Filippo (EPFL, Lausanne, LPTP)
We extend the soft theorems for scattering amplitudes of scalar effective field theories to one-loop order. Our analysis requires carefully accounting for the fact that the soft limit is not guaranteed to commute with evaluating IR-divergent loop integrals; new results for the soft limit of general scalar one-loop integrals are presented. [...]
arXiv:2504.12371; CERN-TH-2025-081.-
2025 - 24 p.
- Published in : JHEP 2508 (2025) 140
Fulltext: 2504.12371 - PDF; document - PDF;
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2025-04-18
04:03 |
Search for additional scalar bosons within the Inert Doublet Model in a final state with two leptons at the FCC-ee
/ Bal, Anubha (Imperial Coll., London) ; Curtis, Edward (Imperial Coll., London) ; Magnan, Anne-Marie (Imperial Coll., London) ; Maier, Benedikt (Imperial Coll., London) ; Robens, Tania (Boskovic Inst., Zagreb ; CERN) ; Wardle, Nicholas (Imperial Coll., London)
In this work, we investigate the discovery reach of a new physics model, the Inert Doublet Model, at an $e^+e^-$ machine with centre-of-mass energies $\sqrt{s}$ of 240 and 365 GeV. Within this model, four additional scalar bosons ($H$, $A$, $H^+$ and $H^-$) are predicted. [...]
arXiv:2504.12178; RBI-ThPhys-2025-08; CERN-TH-2025-069.-
2025 - 15 p.
- Published in : Eur. Phys. J. C 85 (2025) 891
Fulltext: 2504.12178 - PDF; document - PDF;
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2025-04-16
04:04 |
Comparison of smoothening flows for the topological charge in QCD-like theories
/ Butti, Pietro (U. Southern Denmark, QTC) ; Della Morte, Michele (U. Southern Denmark, QTC) ; Jäger, Benjamin (U. Southern Denmark, QTC ; U. Southern Denmark, Odense, DIAS) ; Martins, Sofie (U. Southern Denmark, QTC) ; Tsang, J. Tobias (CERN)
We investigate properties of the topological charge for several SU(NC) gauge field ensembles for NC = 4, 5, 6 with a single fermion in the two-index anti-symmetric representation, covering multiple lattice spacings at otherwise approximately constant physical parameters. Comparing the topological charge defined by the Wilson flow and the over-improved DBW2 flow we find that already at small flow times the latter stabilises on discrete values. [...]
arXiv:2504.10197; CERN-TH-2025-079.-
2025-07-01 - 11 p.
- Published in : Phys. Rev. D 112 (2025) 014504
Fulltext: 2504.10197 - PDF; document - PDF;
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