CERN Accelerating science

TH Preprints

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2020-12-03
04:59
Two-loop helicity amplitudes for $gg\to ZZ$ with full top-quark mass effects / Agarwal, Bakul ; Jones, Stephen P. ; von Manteuffel, Andreas
We calculate the two-loop QCD corrections to $gg \to ZZ$ involving a closed top-quark loop. [...]
CERN-TH-2020-201 IPPP/20/61 MSUHEP-20-017 ; arXiv:2011.15113.
- 36 p.
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2020-12-01
04:28
On the Stress Tensor Light-ray Operator Algebra / Belin, Alexandre ; Hofman, Diego M. ; Mathys, Grégoire ; Walters, Matthew T.
We study correlation functions involving generalized ANEC operators of the form $\int dx^- \left(x^-\right)^{n+2} T_{--}(\vec{x})$ in four dimensions. [...]
arXiv:2011.13862 ; CERN-TH-2020-200.
- 56 p.
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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, G.C. (INFN, Rome3 ; Rome U., Tor Vergata ; Enrico Fermi Ctr., Rome) ; Veneziano, G. (College de France ; CERN)
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.
- 7 p, 7 p.
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2020-11-21
04:27
Light quark Yukawas in triboson final states / Falkowski, Adam (IJCLab, Orsay) ; Ganguly, Sanmay (Weizmann Inst.) ; Gras, Phillippe (IRFU, Saclay) ; No, Jose Miguel (Madrid, Autonoma U.) ; Tobioka, Kohsaku (Florida State U. ; KEK, Tsukuba) ; Vignaroli, Natascia (Pisa U. ; INFN, Pisa) ; You, Tevong (CERN ; Cambridge U., DAMTP)
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;.
- 23 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 (CERN ; EPFL, Lausanne, LPPC) ; Kamada, Kohei (Tokyo U., RESCEU) ; Mukaida, Kyohei (CERN ; DESY) ; Schmitz, Kai (CERN) ; Yamada, Masaki (Tohoku U., IIAIR ; Tohoku U.)
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.
- 12 p.
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2020-11-20
04:08
Xenon1T excess from electron recoils of non-relativistic Dark Matter / Buttazzo, Dario (INFN, Pisa) ; Panci, Paolo (INFN, Pisa ; Pisa U.) ; Teresi, Daniele (Pisa U. ; CERN) ; Ziegler, Robert (KIT, Karlsruhe, TTP)
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.
- 6 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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2020-11-12
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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