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TH Preprints

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2023-03-22
05:32
Determining probability density functions with adiabatic quantum computing / Robbiati, Matteo (CERN ; Milan U. ; INFN, Milan) ; Cruz-Martinez, Juan M. (CERN) ; Carrazza, Stefano (CERN ; Milan U. ; INFN, Milan ; Technol. Innovation Inst., UAE)
A reliable determination of probability density functions from data samples is still a relevant topic in scientific applications. [...]
arXiv:2303.11346 ; TIF-UNIMI-2023-9 ; CERN-TH-2023-042. - 7 p.
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2023-03-22
05:32
Bayesian inference for form-factor fits regulated by unitarity and analyticity / Flynn, J.M. ; Jüttner, A. ; Tsang, J.T.
We propose a model-independent framework for fitting hadronic form-factor data, which is often only available at discrete kinematical points, using parametristations based on to unitarity and analyticity. [...]
arXiv:2303.11285 ; CERN-TH-2023-047. - 45 p.
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2023-03-22
05:28
Exclusive semileptonic $B_s\to K \ell \nu$ decays on the lattice / Flynn, J.M. (Southampton U.) ; Hill, R.C. (Edinburgh U.) ; Jüttner, A. (Southampton U. ; CERN) ; Soni, A. (Brookhaven) ; Tsang, J.T. (CERN) ; Witzel, O. (U. Siegen (main))
Semileptonic $B_s \to K \ell \nu$ decays provide an alternative $b$-decay channel to determine the CKM matrix element $|V_{ub}|$, and to obtain a $R$-ratio to investigate lepton-flavor-universality violations. [...]
arXiv:2303.11280 ; CERN-TH-2023-046 FERMILAB-PUB-23-115-V P3H-23-017 SI-HEP-2023-06 ; CERN-TH-2023-046 ; FERMILAB-PUB-23-115-V ; P3H-23-017 ; SI-HEP-2023-06. - 30 p.
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2023-03-20
04:21
Ultraviolet Sensitivity in Higgs-Starobinsky Inflation / Lee, Sung Mook (IPAP, Seoul ; Yonsei U. ; CERN) ; Modak, Tanmoy (Taiwan, Natl. Taiwan U. ; Tokyo Woman's Christian U.) ; Oda, Kin-ya ; Takahashi, Tomo (Saga U., Japan)
The general scalar-tensor theory that includes all the dimension-four terms has parameter regions that can produce successful inflation consistent with cosmological observations. [...]
arXiv:2303.09866 ; CERN-TH-2023-040. - 23 p.
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2023-03-18
04:16
Collider constraints on electroweakinos in the presence of a light gravitino / GAMBIT Collaboration
Using the GAMBIT global fitting framework, we constrain the MSSM with an eV-scale gravitino as the lightest supersymmetric particle, and the six electroweakinos (neutralinos and charginos) as the only other light new states. [...]
arXiv:2303.09082 ; TTP23-009 ; KCL-PH-TH/2023-21 ; gambit-physics-23 ; MCnet-23-05, ADP-23-08/T1217 ; CERN-TH-2023-043. - 38 p.
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2023-03-18
04:16
Scattering amplitudes from dispersive iterations of unitarity / Tourkine, Piotr (Annecy, LAPTH) ; Zhiboedov, Alexander (CERN)
We present and numerically implement a computational method to construct relativistic scattering amplitudes that obey analyticity, crossing, elastic and inelastic unitarity in three and four spacetime dimensions. [...]
arXiv:2303.08839 ; CERN-TH-2023-025. - 114 p.
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2023-03-17
04:33
On the Running of Gauge Couplings in String Theory / Abel, Steven (CERN) ; Dienes, Keith R. (Arizona U. ; Maryland U.) ; Nutricati, Luca A.
In this paper we conduct a general, model-independent analysis of the running of gauge couplings within closed string theories. [...]
arXiv:2303.08534 ; CERN-TH-2023-044 ; IPPP/23/16. - 37 p.
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2023-03-14
09:05
Towards Resolving the Gallium Anomaly / Brdar, Vedran (CERN) ; Gehrlein, Julia (CERN) ; Kopp, Joachim (CERN ; Mainz U., Inst. Phys. ; U. Mainz, PRISMA)
A series of experiments studying neutrinos from intense radioactive sources have reported a deficit in the measured event rate which, in combination, has reached a statistical significance of $\sim 5\sigma$. [...]
arXiv:2303.05528 ; CERN-TH-2023-036. - 25 p.
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2023-03-14
09:04
Full NLO QCD predictions for Higgs-pair production in the 2-Higgs-Doublet Model / Baglio, J. (CERN) ; Campanario, F. (Valencia U. ; Valencia U., IFIC) ; Glaus, S. (KIT, Karlsruhe, TP ; KIT, Karlsruhe, IKP) ; Mühlleitner, M. (KIT, Karlsruhe, TP) ; Ronca, J. (Rome III U. ; INFN, Rome3) ; Spira, M. (PSI, Villigen)
After the discovery of the Higgs boson in 2012 at the CERN Large Hadron Collider (LHC), the study of its properties still leaves room for an extended Higgs sector with more than one Higgs boson. [...]
arXiv:2303.05409 ; CERN-TH-2022-108 ; IFIC/23-08 ; KA-TP-02-2023 ; P3H-23-013 ; PSI-PR-23-6. - 13 p.
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2023-03-13
04:15
The inverse Mellin transform via analytic continuation / Behring, A. (CERN) ; Blümlein, J. (DESY) ; Schönwald, K. (Zurich U.)
We present a method to calculate the $x$--space expressions of massless or massive operator matrix elements in QCD and QED containing local composite operator insertions, depending on the discrete Mellin index $N$, directly, without computing the Mellin--space expressions in explicit form analytically. [...]
arXiv:2303.05943 ; DESY 20-053 ; DO-TH 23/01 ; CERN-TH-2023-020 ; ZU-TH 13/23. - 43 p.
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