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2020-11-28
04:30
$ZH$ production in gluon fusion: two-loop amplitudes with full top quark mass dependence / Chen, Long ; Heinrich, Gudrun ; Jones, Stephen P. ; Kerner, Matthias ; Klappert, Jonas ; Schlenk, Johannes
We present results for the two-loop helicity amplitudes entering the NLO QCD corrections to the production of a Higgs boson in association with a $Z$-boson in gluon fusion. [...]
arXiv:2011.12325 ; ZU-TH 45/20 ; CERN-TH-2020-199 ; IPPP/20/57 ; P3H-20-076, KA-TP-21-2020 ; TTK-20-42 ; PSI-PR-20-21 P3H-20-076\\ KA-TP-21-2020\\ TTK-20-42\\ PSI-PR-20-21.
- 25 p.
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2020-11-21
04:27
Tetra-quarks, penta-quarks and the like: old and new views / Rossi, Giancarlo ; Veneziano, Gabriele
In this talk, after a short overview of the history of the discovery of tetra-quarks and penta-quarks, we will discuss a possible interpretation of such states in the framework of a 40-years-old "string junction" picture that allows a unified QCD description of ordinary mesons and baryons as well as multi-quark resonances..
arXiv:2011.09774 ; CERN-TH-2020-197.
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2020-11-21
04:27
Light quark Yukawas in triboson final states / Falkowski, Adam ; Ganguly, Sanmay ; Gras, Phillippe ; No, Jose Miguel ; Tobioka, Kohsaku ; Vignaroli, Natascia ; You, Tevong
Triple heavy vector boson production, $p p \to VVV$ $(V = W, Z)$, has recently been observed for the first time. [...]
arXiv:2011.09551 ; CERN-TH-2020-191; IFT-UAM/CSIC-20-158; FTUAM-20-25; KEK-TH-2276;.
- 22 p.
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2020-11-21
04:27
$MARTY$, a new C++ framework for automated symbolic calculations in Beyond the Standard Model physics / Uhlrich, Gregoire (IP2I, Lyon) ; Mahmoudi, Farvah (IP2I, Lyon ; CERN ; IUF, Paris) ; Arbey, Alexandre (IP2I, Lyon ; CERN ; IUF, Paris)
Theoretical calculations Beyond the Standard Model (BSM) constitute a challenge for high energy physicists, but are necessary when searching for New Physics. [...]
arXiv:2011.06558 ; CERN-TH-2020-193.
- 6 p.
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2020-11-20
04:08
Wash-In Leptogenesis / Domcke, Valerie ; Kamada, Kohei ; Mukaida, Kyohei ; Schmitz, Kai ; Yamada, Masaki
We present a new leptogenesis mechanism based on the standard type-I seesaw model that successfully operates at right-handed-neutrino masses as low as a few 100 TeV. [...]
arXiv:2011.09347 ; CERN-TH-2020-196 ; RESCEU-22/20 ; DESY-20-202 ; TU-1112.
- 4 p.
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2020-11-20
04:08
Xenon1T excess from electron recoils of non-relativistic Dark Matter / Buttazzo, Dario ; Panci, Paolo ; Teresi, Daniele ; Ziegler, Robert
We show that electron recoils induced by non-relativistic Dark Matter interactions can fit well the recently reported Xenon1T excess, if they are mediated by a light pseudo-scalar in the MeV range. [...]
arXiv:2011.08919 ; CERN-TH-2020-165 ; TTP20-039 ; P3H-20-070.
- 5 p.
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2020-11-15
13:06
Second order QCD corrections to the g+g → H +H four-point amplitude / Banerjee, Pulak ; Borowka, Sophia ; Dhani, Prasanna ; Gehrmann, Thomas ; Ravindran, Vajravelu
In this contribution we compute the two loop massless QCD corrections to the four-point ampli- tude g + g → H + H . [...]
CERN-TH-2020-194.
- 2020. - 10.
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2020-11-13
17:36
Function Theory for Multiloop Feynman Integrals / Duhr, Claude
Precise predictions for collider observables require the computation of higher orders in perturbation theory. This usually involves the evaluation of complicated multiloop integrals, which typically give rise to complicated special functions. [...]
CERN-TH-2020-192.- Geneva : CERN, 2020 - 26. - Published in : Annual Review of Nuclear and Particle Science 69 (2019) 15-39 Fulltext: PDF;

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2020-11-12
04:58
Geometrizing $T\bar{T}$ / Caputa, Pawel (Warsaw U.) ; Datta, Shouvik (UCLA ; Zurich, ETH ; CERN) ; Jiang, Yunfeng (CERN ; Southeast U., Nanjing ; Southeast U., Nanjing) ; Kraus, Per (UCLA)
The $T\bar{T}$ deformation can be formulated as a dynamical change of coordinates. [...]
arXiv:2011.04664 ; CERN-TH-2020-188.
- 28 p.
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2020-11-11
05:03
Low-Energy Probes of No-Scale SU(5) Super-GUTs / Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn) ; Evans, Jason L. (Shanghai Jiao Tong U.) ; Nagata, Natsumi (Tokyo U.) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Velasco-Sevilla, L. (Korea Inst. Advanced Study, Seoul)
We explore the possible values of the $\mu \to e \gamma$ branching ratio, $\text{BR}(\mu\rightarrow e\gamma)$, and the electron dipole moment (eEDM), $d_e$, in no-scale SU(5) super-GUT models with the boundary conditions that soft supersymmetry-breaking matter scalar masses vanish at some high input scale, $M_{\rm in}$, above the GUT scale, $M_{\rm GUT}$. [...]
arXiv:2011.03554 ; KCL-PH-TH/2020-61 ; CERN-TH-2020-172 ; UMN-TH-4002/20 ; FTPI-MINN-20/33.
- 45 p.
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