Thermocatalytic Conversions of Hydrocarbons

Andreev, P.F.; Bogomolov, A.I.; Dobryanskii, A.F.; Kartsev, A.A.

doi:10.1016/b978-0-08-012450-6.50013-9

Cited by 21 publications

(40 citation statements)

References 5 publications

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“…where G F is the Fermi constant. ACME18 gives [2] d ThO = (4.3 ± 4.0) × 10 −30 e cm, with the stated bound on d e obtained by assuming C S = 0. With the estimate [9] of α ThO = 1.5 × 10 −20 , as we will see below, C S cannot be completely neglected in our case, so we shall use d ThO of ACME18 to explore the model.…”

mentioning

confidence: 69%

“…In particular, with the new upper bound on the electron EDM (eEDM), |d e | < 1.1 × 10 −29 e cm at 90% confidence level (C.L. ), given by the ACME collaboration in 2018 (ACME18) [2], many EWBG scenarios are now in jeopardy. Although calculations of CPV sources still have significant uncertainties, hence the amount of BAU might go upward by more refined analyses, the impact of the ACME18 bound is nevertheless overwhelming.…”

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confidence: 99%

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Cancellation mechanism for the electron electric dipole moment connected with the baryon asymmetry of the Universe

2020

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We elucidate a cancellation mechanism for the electric dipole moment of the electron in the general two Higgs doublet model. The impressive improvement by ACME Collaboration in 2018 suggests the presence of a new electron Yukawa coupling that brings in exquisite cancellations among dangerous diagrams, broadening the solution space for electroweak baryogenesis driven by an extra top Yukawa coupling. The cancellation mechanism calls for the new Yukawa couplings to have hierarchical structures that echo the observed pattern of the Standard Model Yukawa couplings.

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confidence: 69%

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confidence: 99%

Cancellation mechanism for the electron electric dipole moment connected with the baryon asymmetry of the Universe

2020

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“…In addition, low-energy precision experiments are used to look for possible new sources of CP violation. Key experiments involve the search for electric dipole moments [62,63,64] plus precision measurements of CP sensitive observables in positronium decays [65,66,67]. So far there is no evidence for new extra sources of CP violation from these low-energy precision experiments.…”

Section: Particle Physics Today -The Very Successful Standard Modelmentioning

confidence: 99%

Emergent gauge symmetries and particle physics

Bass

2020

Progress in Particle and Nuclear Physics

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Hadron properties and interactions are emergent from QCD. Atomic and condensed matter physics are emergent from QED. Could the local gauge symmetries of particle physics also be emergent? We give an introduction to this question and recent ideas connecting it to the (meta)stability of the Standard Model Higgs vacuum. With an emergent Standard Model the gauge symmetries would "dissolve" in the ultraviolet. This scenario differs from unification models which exhibit maximum symmetry in the extreme ultraviolet. With emergence, new global symmetry violations would appear in higher dimensional operators.

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“…But many extensions of the SM predict the eEDM to be in the range of 10 −29 − 10 −26 e.cm [13] and the sensitivity of the modern eEDM experiment is also found to be in the same range. The best upper bound limit of eEDM (< 1.3 × 10 −29 e.cm) is recently obtained in the ThO-experiment carried out by the ACME collaboration [14]. It is well-known that the eEDM effect is strongly enhanced in heavy polar diatomic paramagnetic molecules due to their high internal * talukdar.kaushik7970@gmail.com † mknayak@barc.gov.in, mk.nayak72@gmail.com ‡ np.vaval@gmail.com § spal@chem.iitb.ac.in effective electric field (E eff ).…”

Section: Introductionmentioning

confidence: 97%

Role of electron correlation in the P,T -odd effects of CdH: A relativistic coupled-cluster investigation

et al. 2020

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We investigate the parity (P) and time-reversal (T ) symmetry violating effects in the CdH molecule and perform the relativistic coupled-cluster calculation of the molecular parameters-E eff , Ws and WM related to the electric dipole moment of electron (eEDM) interaction, the scalarpseudoscalar (S-PS) nucleus-electron neutral current coupling and the nuclear magnetic quadrupole moment (MQM) interaction with electrons, respectively. We also compute the molecular dipole moment and the magnetic hyperfine structure coupling constant of CdH. The value of E eff , Ws and WM obtained by us in the said molecule are 12.2 GV/cm, 14.0 kHz and 0.82×10 33 Hz/e cm 2 , respectively, with an uncertainty of 10%. Furthermore, we study the trend of electron-correlation in the computed properties of CdH and that of the P, T -odd parameters in the group-12 monohydrides (i.e., ZnH, CdH, and HgH). PACS numbers:

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Thermocatalytic Conversions of Hydrocarbons

Cited by 21 publications

References 5 publications

Cancellation mechanism for the electron electric dipole moment connected with the baryon asymmetry of the Universe

Cancellation mechanism for the electron electric dipole moment connected with the baryon asymmetry of the Universe

Emergent gauge symmetries and particle physics

Role of electron correlation in the P,T -odd effects of CdH: A relativistic coupled-cluster investigation

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