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Posledne pridané:
2022-11-30
11:00
Constraining Single-Field Inflation with MegaMapper / Cabass, Giovanni (Princeton, Inst. Advanced Study) ; Ivanov, Mikhail M. ; Philcox, Oliver H.E. ; Simonovic, Marko ; Zaldarriaga, Matias
We forecast the constraints on single-field inflation from the bispectrum of future high-redshift surveys such as MegaMapper. [...]
CERN-TH-2022-203 ; arXiv:2211.14899.
- 6 p.
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2022-11-24
04:03
Isospin-breaking corrections to light-meson leptonic decays from lattice simulations at physical quark masses / Boyle, Peter (Los Alamos Natl. Lab., Theor. Div. ; Los Alamos ; Edinburgh U.) ; Di Carlo, Matteo ; Erben, Felix ; Gülpers, Vera (Edinburgh U.) ; Hansen, Maxwell T. ; Harris, Tim ; Hermansson-Truedsson, Nils ; Hodgson, Raoul ; Jüttner, Andreas (Southampton U. ; CERN) ; hÓgáin, Fionn Ó. et al.
The decreasing uncertainties in theoretical predictions and experimental measurements of several hadronic observables related to weak processes, which in many cases are now smaller than $\mathrm{O}(1\%)$, require theoretical calculations to include subleading corrections that were neglected so far. [...]
CERN-TH-2022-193 ; LU-TP 22-59 ; arXiv:2211.12865.
- 66 p.
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2022-11-24
04:03
The Rumble in the Meson: a leptoquark versus a $Z^\prime$ to fit $b \rightarrow s \mu^+ \mu^-$ anomalies / Allanach, Ben (Cambridge U., DAMTP ; CERN) ; Davighi, Joe (Zurich U.)
We juxtapose global fits of two bottom-up models (an $S_3$ scalar leptoquark model and a ${B_3-L_2}$$Z^\prime$ model) of $b\rightarrow s \mu^+\mu^-$ anomalies to flavour data in order to quantify statistical preference or lack thereof. [...]
CERN-TH-2022-181 ; arXiv:2211.11766.
- 19 p.
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2022-11-23
04:27
Efficient quantum implementation of 2+1 U(1) lattice gauge theories with Gauss law constraints / Kane, Christopher ; Grabowska, Dorota M. ; Nachman, Benjamin ; Bauer, Christian W.
The study of real-time evolution of lattice quantum field theories using classical computers is known to scale exponentially with the number of lattice sites. [...]
CERN-TH-2022-195 ; arXiv:2211.10497.
- 19 p.
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2022-11-23
04:27
Collider phenomenology of new neutral scalars in a flavoured multi-Higgs model / Ferreira, Pedro M. (Lisbon, ISEL ; Lisbon U., CFTC) ; Gonçalves, João (Aveiro U.) ; Morais, António P. (Aveiro U. ; CERN) ; Onofre, António (LIP, Minho) ; Pasechnik, Roman (Lund Observ. ; Lund U., Dept. Theor. Phys.) ; Vatellis, Vasileios (Aveiro U.)
In this work, we propose and explore for the first time a new collider signature of heavy neutral scalars typically found in many distinct classes of multi-Higgs models. [...]
CERN-TH-2022-194 ; arXiv:2211.10109.
- 28 p.
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2022-11-23
04:27
DarkPack: A new software to compute BSM squared amplitudes for particle physics and dark matter observables / Palmiotto, M. (Lyon, IPN) ; Arbey, A. (Lyon, IPN ; CERN) ; Mahmoudi, F. (Lyon, IPN ; CERN)
We present here a new package to automatically generate a complete library of 2 to 2 squared amplitudes at leading order in any New Physics models. [...]
CERN-TH-2022-197 ; arXiv:2211.10376.
- 27 p.
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2022-11-23
04:27
Minimal decoherence from inflation / Burgess, C.P. (McMaster U. ; Perimeter Inst. Theor. Phys. ; CERN ; NUIM, Maynooth (main) ; Dublin Inst.) ; Holman, R. (Minerva Schools, SF) ; Kaplanek, Greg (McMaster U. ; Perimeter Inst. Theor. Phys. ; Imperial Coll., London) ; Martin, Jerome (Paris, Inst. Astrophys.) ; Vennin, Vincent (LPENS, Paris ; APC, Paris)
We compute the rate with which super-Hubble cosmological fluctuations are decohered during inflation, by their gravitational interactions with unobserved shorter-wavelength scalar and tensor modes. [...]
CERN-TH-2022-174; Imperial/TP/2022/GK/02 ; arXiv:2211.11046.
- 31 p.
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2022-11-23
04:27
Differential heavy quark pair production at small $x$ / Silvetti, Federico ; Bonvini, Marco
We consider the production of a heavy quark pair in proton-proton collisions. [...]
CERN-TH-2022-186 ; arXiv:2211.10142.
- 41 p.
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2022-11-17
04:09
Two-loop form factors for pseudo-scalar quarkonium production and decay / Abreu, Samuel (CERN ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Becchetti, Matteo (INFN, Turin) ; Duhr, Claude (U. Bonn, Phys. Inst., BCTP) ; Ozcelik, Melih A. (IJCLab, Orsay ; Karlsruhe U., TTP)
We present the analytic expressions for the two-loop form factors for the production or decay of pseudo-scalar quarkonia, in a scheme where the quarks are produced at threshold. [...]
BONN-TH-2022-23 ; CERN-TH-2022-187 ; TTP22-068 ; arXiv:2211.08838.
- 37 p.
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2022-11-17
04:09
RG-running of the tensor currents for $N_f$ =3 QCD in a $\chi SF$ setup / Campos Plasencia, Isabel ; Dalla Brida, Mattia ; de Divitiis, Giulia Maria ; Lytle, Andrew ; Papinutto, Mauro ; Pirelli, Ludovica ; Vladikas, Anastassios
We present the preliminary results of the non-perturbative running of the flavour non-singlet tensor operator in the high-energy range $2~\rm{GeV}\lesssim \mu\lesssim 128~\rm{GeV}$ in $N_f=3$ massless QCD, comparing four different definitions of the renormalisation constant. [...]
CERN-TH-2022-185 ; arXiv:2211.08829.
- 10 p.
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