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Ultimi arrivi:
2024-05-25
05:16
Determining $\alpha_s(m_Z)$ from Thrust with Power Corrections / Benitez-Rathgeb, Miguel A. (Salamanca U., IUFFyM) ; Hoang, André H. (Vienna U.) ; Mateu, Vicent (Salamanca U., IUFFyM) ; Stewart, Iain W. (MIT, Cambridge, CTP) ; Vita, Gherardo (CERN)
We update and extend a previous N$^3$LL$^\prime$+${\cal O}(\alpha_s^3)$ strong coupling determination from thrust data. [...]
MIT/CTP-5723 ; CERN-TH-2024-063 ; UWThPh 2024-12 ; arXiv:2405.14380.
- 4 p.
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2024-05-23
04:54
Gravitational Wave-Induced Freeze-In of Fermionic Dark Matter / Maleknejad, Azadeh (King's Coll. London) ; Kopp, Joachim (CERN ; Mainz U., Inst. Phys. ; U. Mainz, PRISMA)
The minimal coupling of massless fermions to gravity does not allow for their gravitational production solely based on the expansion of the Universe. [...]
arXiv:2405.09723 ; KCL-PH-TH/2024-28 ; CERN-TH-2024-061 ; MITP-24-050.
- 6 p.
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2024-05-16
04:22
In Search of the Biggest Bangs since the Big Bang / Ellis, John ; Fairbairn, Malcolm ; Urrutia, Juan ; Vaskonen, Ville
Many galaxies contain supermassive black holes (SMBHs), whose formation and history raise many puzzles. [...]
KCL-PH-TH/2024-27 ; CERN-TH-2024-058 ; AION-REPORT/2024-04 ; arXiv:2405.08522.
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2024-05-16
04:17
Status of Dark Photons / Cline, James M. (CERN ; McGill U.)
I review recent developments in the field of dark photons-here taken to be U(1) gauge bosons with mass less than the Z-including both kinetically mixed vectors and those that couple to anomaly-free U(1)'s. [...]
arXiv:2405.08534 ; CERN-TH-2024-060 CERN-TH-2024-060 CERN-TH-2024-060 CERN-TH-2024-060 CERN-TH-2024-060 CERN-TH-2024-060CERN-TH-2024-060 CERN-TH-2024-060.
- 8 p.
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2024-05-16
04:17
Lepton-Pair Scattering With an Off-Shell and an On-Shell Photon at Two Loops in Massless QED / Zoia, Simone (CERN)
I present the computation of the two-loop amplitudes for the scattering of a lepton pair with an off-shell and an on-shell photon in massless QED. [...]
arXiv:2405.08750 ; CERN-TH-2024-059.
- 4 p.
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2024-05-16
04:17
Giving a $KO$ to 8D Gauge Anomalies / Torres, Ethan (CERN)
In \cite{Garcia-Etxebarria:2017crf}, it was found that the system of $k$ D7-branes probing an $O7^+$-plane suffers from an $\mathfrak{sp}(k)$ gauge anomaly when $k>1$. [...]
CERN-TH-2024-054 ; arXiv:2405.08809.
- 16 p.
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2024-05-11
21:19
Baryon-number -flavor separation in the topological expansion of QCD / Frenklakh, David (SUNY, Stony Brook) ; Kharzeev, Dmitri (SUNY, Stony Brook ; Brookhaven) ; Rossi, Giancarlo (INFN, Rome ; Enrico Fermi Ctr., Rome) ; Veneziano, Gabriele (CERN ; College de France)
Gauge invariance of QCD dictates the presence of string junctions in the wave functions of baryons. [...]
arXiv:2405.04569 ; CERN-TH-2024-055.
- 27 p.
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2024-05-09
04:49
$\mathrm{D}$ and $\mathrm{D_s}$ decay constants in $N_{\rm f}=2+1$ QCD with Wilson fermions / Kuberski, Simon (CERN ; Mainz U., Inst. Phys. ; Darmstadt, GSI) ; Joswig, Fabian (Edinburgh U.) ; Collins, Sara (Regensburg U.) ; Heitger, Jochen (Munster U., ITP) ; Söldner, Wolfgang (Regensburg U.)
We present results for the leptonic decay constants of the D and D$_{\rm s}$ mesons from $N_{\rm f}=2+1$ lattice QCD. [...]
arXiv:2405.04506 ; CERN-TH-2024-052 ; MITP-24-047 ; MS-TP-24-09.
- 44 p.
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2024-05-03
04:13
Two-loop mixed QCD-EW corrections to charged current Drell-Yan / Armadillo, Tommaso (Louvain U., CP3 ; Milan U.) ; Bonciani, Roberto (Rome U.) ; Devoto, Simone (Milan U. ; Gent U.) ; Rana, Narayan (NISER, Jatni) ; Vicini, Alessandro (Milan U. ; CERN)
We present the two-loop mixed strong-electroweak virtual corrections to the charged current Drell-Yan process. [...]
TIF-UNIMI-2024-3 ; CERN-TH-2024-047 ; arXiv:2405.00612.
- 26 p.
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2024-05-02
04:24
AGN constraints on neutrino-dark matter scattering / Cline, James M. (CERN ; McGill U.)
The IceCube collaboration has identified neutrinos of energy $\sim 10-100$ TeV from the blazar TXS 0506+056 and the active galaxy NGC 1068, which must have traveled through a dense dark matter spike surrounding the supermassive black holes that power the galactic nuclei. [...]
arXiv:2404.19471 ; CERN-TH-2024-053.
- 1 p.
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