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2025-10-23
04:25
NLO analysis of the subleading-power $Q_1-Q_{7\gamma}$ interference in $\bar{B}\to X_s\gamma$ at large photon energies / Bartocci, Riccardo (Mainz U., Inst. Phys. ; U. Mainz, PRISMA) ; Böer, Philipp (CERN) ; Hurth, Tobias (Mainz U., Inst. Phys. ; U. Mainz, PRISMA)
We report on progress towards including next-to-leading order (NLO) radiative corrections to the subleading-power factorization formula for the $Q_1^{q}-Q_{7γ}$ interference contribution in $\bar{B}\to X_sγ$ at large photon energies, $m_b - 2E_γ= \mathcal{O}(Λ_{\rm QCD})$. [...]
MITP-25-063 ; CERN-TH-2025-197 ; arXiv:2510.18811. - 10.
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2025-10-23
04:10
Constraints on Attractor Models of Inflation and Reheating from Planck, BICEP/Keck, ACT DR6, and SPT-3G Data / Ellis, John ; Garcia, Marcos A.G. ; Olive, Keith A. ; Verner, Sarunas
We analyze the latest cosmic microwave background (CMB) constraints on the scalar spectral index $n_s$ and tensor-to-scalar ratio $r$ from Planck 2018, BICEP/Keck 2018, the Atacama Cosmology Telescope Data Release 6 (ACT DR6), and the South Pole Telescope (SPT-3G) data, focusing on their implications for attractor models of inflation. [...]
UMN-TH-4512/25 ; FTPI-MINN-25/14 ; KCL-PH-TH/2025-42 ; CERN-TH-2025-199 ; arXiv:2510.18656. - 25.
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2025-10-23
04:05
Multi-Instantons, Multi-Axions, and Non-Invertible Symmetries in 4d QFT / Hong, Sungwoo (KAIST, Taejon) ; Kim, Hyungyu (KAIST, Taejon) ; Lee, Sung Mook (KAIST, Taejon ; CERN) ; Seo, Dongmin (KAIST, Taejon)
We study non-invertible global symmetries in 4d quantum field theories, aiming to generalize existing discussions to theories with multiple instantons and axions, and to make the subject more accessible to particle phenomenology. [...]
CERN-TH-2025-204 ; arXiv:2510.18404. - 57.
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2025-10-22
04:22
Out-of-Equilibrium Dynamics in a U(1) Lattice Gauge Theory via Local Information Flows: Scattering and String Breaking / Artiaco, Claudia (Royal Inst. Tech., Stockholm) ; Barata, João (CERN) ; Rico, Enrique (CERN ; Basque U., Bilbao ; Donostia Intl. Phys. Ctr., San Sebastian)
We introduce local information flows as a diagnostic tool for characterizing out-of-equilibrium quantum dynamics in lattice gauge theories. [...]
CERN-TH-2025-191 ; arXiv:2510.16101. - 32.
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2025-10-21
04:04
Effects of Radiative Corrections on Starobinsky Inflation / Ellis, John (King's Coll. London ; CERN) ; Gherghetta, Tony (U. Minnesota, Minneapolis (main)) ; Kaneta, Kunio (Niigata U.) ; Ke, Wenqi (U. Minnesota, Minneapolis (main)) ; Olive, Keith A. (U. Minnesota, Minneapolis (main))
We analyze radiative corrections to the Starobinsky model of inflation arising from self-interactions of the inflaton, and from its Yukawa couplings, $y$, to matter fermions, and dimensionful trilinear couplings, $κ$, to scalar fields, which could be responsible for reheating the Universe after inflation. [...]
UMN-TH-4511/25 ; FTPI-MINN-25/13 ; KCL-PH-TH/2025-39 ; CERN-TH-2025-198 ; arXiv:2510.15137. - 15.
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2025-10-15
04:29
Massive Feynman integrals at high energies: recent analytic results / Zhang, Hantian (CERN)
The high-energy behaviour of scattering amplitudes involving massive particles has attracted interest in recent years. [...]
arXiv:2510.09838 ; CERN-TH-2025-195. - 6 p, 6.
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2025-10-14
10:17
HOPPET v2.0.0 release note / Karlberg, Alexander (CERN) ; Nason, Paolo (INFN, Milan Bicocca ; Milan Bicocca U. (main)) ; Salam, Gavin (U. Oxford (main)) ; Zanderighi, Giulia (Garching, Max Planck Inst. ; Munich, Tech. U.) ; Dreyer, Frédéric (Unlisted, US)
We document the three main new features in release 2.0.0 of the HOPPET parton distribution function evolution code, specifically support for N$^3$LO QCD evolution in the variable flavour number scheme, for the determination of hadronic structure functions for massless quarks up to N$^3$LO, and for QED evolution to an accuracy phenomenologically equivalent to NNLO QCD. [...]
arXiv:2510.09310 ; CERN-TH-2023-237 ; MPP-2023-285 ; OUTP-23-15P. - 31.
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2025-10-11
04:43
Correlation Function/Wilson Loop Duality in Gauge Theory from EFT / Chen, Hao (MIT, Cambridge, CTP) ; Monni, Pier Francesco (CERN) ; Pang, Zhaoyan (Peking U.) ; Vita, Gherardo (CERN) ; Zhu, Hua Xing (Peking U. ; Peking U., CHEP)
In this Letter, we initiate a systematic study of the $n$-point correlation functions (CF) in gauge theories in the sequential light-cone (SLC) limit. [...]
MIT-CTP 5926 ; CERN-TH-2025-104 ; arXiv:2510.07377. - 7.
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2025-10-10
04:47
SymTFT Entanglement and Holographic (Non)-Factorization / Torres, Ethan (CERN) ; Yu, Xingyang (Virginia Tech., Blacksburg)
Given two otherwise decoupled $D$-dimensional CFTs which possess a common (finite) symmetry subcategory, one can consider entangled boundary states of their $(D+1)$-dimensional SymTFTs. [...]
CERN-TH-2025-194 ; arXiv:2510.06319. - 66.
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2025-10-10
04:44
Observables of boundary RG flows from string field theory / Scheinpflug, Jaroslav (Harvard U. (main)) ; Schnabl, Martin (Prague, Inst. Phys. ; CERN) ; Vošmera, Jakub (IPhT, Saclay)
We present simple explicit formulae for the change of the $g$-function, boundary state, boundary spectrum and structure constants between the endpoints of short boundary RG flows at next-to-leading order. [...]
CERN-TH-2025-196 ; arXiv:2510.07155. - 79.
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