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2025-07-11
04:20
Krylov Complexity / Rabinovici, Eliezer ; Sánchez-Garrido, Adrián ; Shir, Ruth ; Sonner, Julian
We introduce and review a new complexity measure, called `Krylov complexity', which takes its origins in the field of quantum-chaotic dynamics, serving as a canonical measure of operator growth and spreading. [...]
CERN-TH-2025-128 ; arXiv:2507.06286. - 90.
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2025-07-10
04:58
SMEFT ATLAS: The Landscape Beyond the Standard Model / Aebischer, Jason (CERN) ; Buras, Andrzej J. (TUM-IAS, Munich) ; Kumar, Jacky (Los Alamos)
The Standard Model Effective Field Theory (SMEFT) based on the unbroken gauge group $\text{SU(3)}_C\otimes\text{SU(2)}_L\otimes\text{U(1)}_Y$ and containing only particles of the Standard Model (SM) has developed in the last decade to a mature field. [...]
AJB-25-1 ; CERN-TH-2025-129 ; LA-UR-24-24665 ; arXiv:2507.05926. - 293.
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2025-07-09
07:48
Challenging $\bar{B}_{(s)}\to D_{(s)}^{(*)}$ Form Factors with the Heavy Quark Expansion / Bordone, Marzia (Siegen U. ; CERN ; Zurich U.) ; Gubernari, Nico (Cambridge U., DAMTP) ; Jung, Martin (Turin U. ; INFN, Turin) ; van Dyk, Danny (Durham U., IPPP)
Recent publications by three lattice QCD collaborations have provided an unprecedented wealth of theoretical predictions for the $\bar{B}_q \to D_q^{(*)}$ form factors, for spectator flavours $q=u/d$ and $q=s$. [...]
CERN-TH-2025-092 ; EOS-2025-03 ; IPPP/25/25 ; P3H-25-032 ; SI-HEP-2025-10 ; ZU-TH 35/25 ; arXiv:2507.03569. - 36.
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2025-07-04
04:00
Transmutation of $^{16}$O and $^{20}$Ne at the Large Hadron Collider / Nijs, Govert (CERN) ; van der Schee, Wilke (CERN ; Utrecht U. (main) ; Nikhef, Amsterdam ; Tech. U., Dortmund (main))
In July 2025 the Large Hadron Collider (LHC) will collide $^{16}$O$^{16}$O and $^{20}$Ne$^{20}$Ne isotopes in a quest to understand the physics of ultrarelativistic light ion collisions. [...]
CERN-TH-2025-127 ; arXiv:2507.01659. - 3.
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2025-07-01
04:40
S-wave flavor-singlet meson mixing in QCD with light and charm quarks / Urrea-Niño, Juan Andrés (Trinity Coll., Dublin ; Wuppertal U.) ; Finkenrath, Jacob (CERN) ; Höllwieser, Roman (Wuppertal U.) ; Knechtli, Francesco (Wuppertal U.) ; Korzec, Tomasz (Wuppertal U.) ; Peardon, Michael (Trinity Coll., Dublin)
We investigate the mixing between flavor-singlet light meson and charmonium operators in the S-wave channels, i.e. [...]
WUB/25-04 ; CERN-TH-2025-114 ; arXiv:2506.22132. - 14.
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2025-06-28
05:01
Probing Neutral Triple Gauge Couplings via $ZZ$ Production at $e^+e^-$ Colliders / Ellis, John (Shanghai Jiao Tong U. ; King's Coll. London ; CERN) ; He, Hong-Jian (Tsung-Dao Lee Inst., Shanghai ; Shanghai Jiao Tong U. ; Tsinghua U., Beijing ; Peking U., CHEP) ; Xiao, Rui-Qing (Peking U.) ; Zeng, Shi-Ping (Tsung-Dao Lee Inst., Shanghai ; Shanghai Jiao Tong U.)
Neutral triple gauge couplings (nTGCs) first arise from the dimension-8 operators of the Standard Model Effective Field Theory (SMEFT), rather than the dimension-4 SM Lagrangian and dimension-6 SMEFT operators, opening up a unique window for probing new physics at the dimension-8 level. [...]
KCL-PH-TH/2025-28 ; CERN-TH-2025-122 ; arXiv:2506.21433. - 2024-11-07 - 32.
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2025-06-26
04:26
Leptogenesis in automatic Nelson-Barr models / Murgui, Clara (CERN) ; Patrone, Samuel (Caltech)
In this study, we numerically show that automatic Nelson-Barr models with new chiral fermions can simultaneously solve the strong CP problem and generate the observed baryon asymmetry via high-scale leptogenesis. [...]
CALT-TH/2025-020 ; CERN-TH-2025-118 ; arXiv:2506.18963. - 40.
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2025-06-25
04:24
Stable perturbative predictions for isolated photon production with a jet pair at large $m_{j_1 j_2}$ / Andersen, Jeppe R. (Durham U., IPPP ; CERN) ; Maier, Andreas (Barcelona, IFAE ; Barcelona, Autonoma U.) ; Rosca, Malina (Durham U., IPPP) ; Ruisi, Giacomo (DESY, Zeuthen)
We present the first calculation of the high-energy corrections to the process of isolated photon production in association with two jets. [...]
CERN-TH-2025-120 ; IPPP/25/35 ; arXiv:2506.17438. - 24.
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2025-06-19
04:04
A Determination of $α_s(m_Z)$ at aN$^3$LO$_{\bf QCD}\otimes {\bf NLO}_{\bf QED}$ Accuracy from a Global PDF Analysis / Ball, Richard D. (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Barontini, Andrea (INFN, Milan ; Milan U.) ; Cruz-Martinez, Juan (CERN) ; Forte, Stefano (INFN, Milan ; Milan U.) ; Hekhorn, Felix (Jyvaskyla U. ; Helsinki U.) ; Nocera, Emanuele R. (Turin U. ; INFN, Turin) ; Rojo, Juan (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Stegeman, Roy (Heriot-Watt U. (main))
We present a determination of the strong coupling $α_s(m_Z)$ from a global dataset including both fixed-target and collider data from deep-inelastic scattering and a variety of hadronic processes, with a simultaneous determination of parton distribution functions (PDFs) based on the NNPDF4.0 methodology. [...]
arXiv:2506.13871 ; TIF-UNIMI-2025-10 ; Edinburgh 2024/12 ; CERN-TH-2025-106. - 21.
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2025-06-18
04:50
Flavoured jet algorithms: a comparative study / Behring, Arnd (Garching, Max Planck Inst.) ; Caletti, Simone (Zurich, ETH) ; Giuli, Francesco (Rome U., Tor Vergata ; INFN, Rome) ; Grabarczyk, Radoslaw (Oxford U. ; Oxford U., Theor. Phys.) ; Hinzmann, Andreas (DESY) ; Huss, Alexander (CERN) ; Huston, Joey (Michigan State U.) ; Lesser, Ezra D. (CERN) ; Marzani, Simone (Genoa U. ; INFN, Genoa) ; Napoletano, Davide (Milan Bicocca U. ; INFN, Milan Bicocca) et al.
The accurate identification of heavy-flavour jets, those which originate from bottom or charm quarks, is crucial for precision studies of the Standard Model and searches for new physics. [...]
arXiv:2506.13449 ; CERN-TH-2025-113 ; IFJPAN-IV-2025-13 ; MCNET-25-14 ; MPP-2025-118 ; PUBDB-2025-01862. - 2025-06-16 - 81.
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