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- Gehui Wang, Renyi Zhang, +42 authors Mario J Molina
- Proceedings of the National Academy of Sciences…
- 2016

Sulfate aerosols exert profound impacts on human and ecosystem health, weather, and climate, but their formation mechanism remains uncertain. Atmospheric models consistently underpredict sulfate levels under diverse environmental conditions. From atmospheric measurements in two Chinese megacities and complementary laboratory experiments, we show that the… (More)

- M E Gómez, G Lazarides, C Pallis
- 2002

We construct concrete supersymmetric grand unified theories based on the Pati-Salam gauge group SU(4)c × SU(2)L × SU(2)R which naturally lead to a moderate violation of ‘asymptotic’ Yukawa unification and thus can allow an acceptable b-quark mass even with universal boundary conditions. We consider the constrained minimal supersymmetric standard model which… (More)

- Mario E Gomez, Yun Lin, Song Guo, Renyi Zhang
- The journal of physical chemistry. A
- 2015

The heterogeneous chemistry of glyoxal on sulfuric acid surfaces has been investigated at various acid concentrations and temperatures, utilizing a low-pressure fast flow laminar reactor coupled to an ion drift-chemical ionization mass spectrometer (ID-CIMS). The uptake coefficient (γ) of glyoxal ranges from (1.2 ± 0.06) × 10(-2) to (2.5 ± 0.01) × 10(-3)… (More)

- Mario E. Gómez, Tarek Ibrahim, Pran Nath, Solveig Skadhauge
- 2006

An improved analysis of b → s+γ decay is given taking into account additional contributions in the supersymmetric sector which enter in the next-to-leading-order (NLO) and are enhanced by tanβ factors. Specifically, we compute a set of twenty one-loop diagrams to give the most complete analysis to date of the NLO supersymmetric corrections. These… (More)

- Mario E Gómez, Tarek Ibrahim, Pran Nath, Solveig Skadhauge
- 2004

An analysis of the sensitivity of supersymmetric dark matter to variations in the b quark mass is given. Specifically we study the effects on the neutralino relic abundance from supersymmetric loop corrections to the mass of the b quark. It is known that these loop corrections can become significant for large tanβ. The analysis is carried out in the… (More)

- M E Gómez, G Lazarides, C Pallis
- 2000

The minimal supersymmetric standard model with universal boundary conditions and ‘asymptotic’ Yukawa coupling unification is considered. The full one-loop effective potential for radiative electroweak symmetry breaking as well as the one-loop corrections to all the Higgs boson, b-quark and τ -lepton masses are included. The relic abundance of the lightest… (More)

- D G Cerdeño, E Gabrielli, M E Gomez, C Muñoz
- 2008

We compute the neutralino-nucleon cross section in several supersymmetric scenarios, taking into account all kind of constraints. In particular, the constraints that the absence of dangerous charge and colour breaking minima imposes on the parameter space are studied in detail. In addition, the most recent experimental constraints, such as the lower bound… (More)

- M. E. Gómez, G. Lazarides
- 1999

The cosmological relic density of the lightest supersymmetric particle of the minimal supersymmetric standard model is calculated under the assumption of gauge and Yukawa coupling unification. We employ radiative electroweak breaking with universal boundary conditions from gravitymediated supersymmetry breaking. Coannihilation of the lightest supersymmetric… (More)

- Edward T Castellana, Roberto C Gamez, Mario E Gómez, David H Russell
- Langmuir : the ACS journal of surfaces and…
- 2010

A "strategy" for analyte capture/ionization based on chemical derivatization of gold nanorods and infrared laser desorption ionization (IR-LDI) is described. This is the first example of laser desorption/ionization of biomolecules using gold nanorods irradiated with an IR laser. LDI is performed at wavelengths (1064 nm) that overlap with the longitudinal… (More)

- M E Gómez, G K Leontaris, S Lola, J D Vergados
- 1998

U(1) family symmetries have led to successful predictions of the fermion mass spectrum and the mixing angles of the hadronic sector. In the context of the supersymmetric unified theories, they further imply a non-trivial mass structure for the scalar partners, giving rise to new sources of flavor violation. In the present work, lepton flavor non-conserving… (More)