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2024-09-25
04:15
Plausible constraints and inflationary production for dark photons / Cline, James M. (McGill U. ; CERN) ; Herrera, Gonzalo (CERN ; Virginia Tech.)
Generic constraints on dark photons are generally presented assuming they have Stueckelberg masses. [...]
CERN-TH-2024-154 ; arXiv:2409.13818.
- 5 p.
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2024-09-25
04:15
Kolya: an open-source package for inclusive semileptonic $B$ decays / Fael, Matteo (CERN) ; Milutin, Ilija S. (Siegen U.) ; Vos, K. Keri (Maastricht U. ; NIKHEF, Amsterdam)
We introduce the code kolya, an open-source tool for phenomenological analyses of inclusive semileptonic $B$ meson decays. [...]
Nikhef 2023-022 ; CERN-TH-2024-155 ; SI-HEP-2024-20 ; P3H-24-065 ; arXiv:2409.15007.
- 37 p.
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2024-09-21
04:03
Shaping Dark Photon Spectral Distortions / Arsenadze, Giorgi (New York U., CCPP) ; Caputo, Andrea (CERN) ; Gan, Xucheng (New York U., CCPP ; DESY) ; Liu, Hongwan (Boston U. ; Chicago U., KICP ; Fermilab) ; Ruderman, Joshua T. (New York U., CCPP)
The cosmic microwave background (CMB) spectrum is an extraordinary tool for exploring physics beyond the Standard Model. [...]
CERN-TH-2024-153 ; DESY-24-139 ; arXiv:2409.12940.
- 18 p.
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2024-09-18
05:31
Light Right-handed Smuons at the LHC: Natural Dark Matter and $g_{\mu}-2$ in an Unexplored Realm of the pMSSM / Yin, Xiangwei (Chongqing U.) ; Li, Tianjun (Beijing, Inst. Theor. Phys. ; Beijing, GUCAS ; Henan Normal U.) ; Maxin, James A. (Louisiana State U.) ; Nanopoulos, Dimitri V. (Texas A-M ; Athens Academy ; Athens U. ; HARC, Woodlands ; CERN)
We introduce an in-depth study of an unprobed pMSSM region offering a natural solution to dark matter. [...]
CERN-TH-2024-149 ; arXiv:2409.09474.
- 10 p.
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2024-09-18
05:25
Cambridge Lectures on The Standard Model / Quevedo, Fernando (Cambridge U., DAMTP ; CERN ; New York U., Abu Dhabi) ; Schachner, Andreas (Cambridge U., DAMTP ; Munich U., ASC ; Cornell U.)
These lecture notes cover the Standard Model (SM) course for Part III of the Cambridge Mathematical Tripos, taught during the years 2020-2023. [...]
CERN-TH-2024-106 ; arXiv:2409.09211.
- 255 p.
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2024-09-17
05:07
Discovery Opportunities with Gravitational Waves -- TASI 2024 Lecture Notes / Domcke, Valerie (CERN)
Recent advancements in gravitational wave astronomy hold the promise of a completely new way to explore our Universe [...]
CERN-TH-2024-152 ; arXiv:2409.08956.
- 31 p.
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2024-09-17
04:56
A collinear shower algorithm for NSL non-singlet fragmentation / van Beekveld, Melissa (NIKHEF, Amsterdam) ; Dasgupta, Mrinal (Manchester U.) ; El-Menoufi, Basem Kamal (Monash U.) ; Helliwell, Jack (Oxford U., Theor. Phys.) ; Monni, Pier Francesco (CERN) ; Salam, Gavin P. (Oxford U., Theor. Phys. ; U. Oxford (main))
We formulate a collinear partonic shower algorithm that achieves next-to-single-logarithmic (NSL, $\alpha_s^n L^{n-1}$) accuracy for collinear-sensitive non-singlet fragmentation observables. [...]
CERN-TH-2024-125 ; Nikhef 2024-013 ; OUTP-24-05P ; arXiv:2409.08316.
- 36 p.
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2024-09-14
04:38
Two-loop amplitudes for $\mathcal{O}(\alpha_s^2)$ corrections to $W\gamma\gamma$ production at the LHC / Badger, Simon (INFN, Turin) ; Hartanto, Heribertus Bayu (APCTP, Pohang ; POSTECH) ; Wu, Zihao (HIAS, UCAS, Hangzhou ; Unlisted, CN) ; Zhang, Yang (Hefei, CUST ; PCFT, Hefei) ; Zoia, Simone (PCFT, Hefei)
We present the two-loop helicity amplitudes contributing to the next-to-next-to-leading order QCD predictions for W-boson production in association with two photons at the Large Hadron Collider. [...]
CERN-TH-2024-146 ; USTC-ICTS/PCFT-24-29 ; arXiv:2409.08146.
- 31 p.
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2024-09-12
04:37
Theoretical implications for a new measurement of $K_L\to \pi^0 \ell\ell$ / D'Ambrosio, G. (INFN, Naples) ; Iyer, A.M. (Indian Inst. Tech., New Delhi) ; Mahmoudi, F. (IP2I, Lyon ; CERN ; IUF, Paris) ; Neshatpour, S. (IP2I, Lyon)
Kaon physics is at an important experimental juncture with respect to the ongoing measurements of several observables. [...]
CERN-TH-2024-150 ; arXiv:2409.06545.
- 14 p.
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2024-09-12
04:15
Dielectric Haloscopes as Gravitational Wave Detectors / Domcke, Valerie (CERN) ; Ellis, Sebastian A.R. (Geneva U., Dept. Theor. Phys.) ; Kopp, Joachim (CERN ; Mainz U.)
We argue that dielectric haloscopes like MADMAX, originally designed for detecting axion dark matter, are also very promising gravitational wave detectors. [...]
CERN-TH-2024-151 ; arXiv:2409.06462.
- 8 p.
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