Investment in S&amp;T and Innovation in India

Mandal, Kasturi; Kumar, Vipan; Banerjee, Parthasarathi

doi:10.2139/ssrn.1489180

Cited by 18 publications

(32 citation statements)

References 1 publication

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“…There are several proposals with scalar leptoquarks that address R K ( * ) and/or R D ( * ) [559,[561][562][563][564][565][566], some in the context of unified theories such as SU (5) Finally, moderately large leptoquark couplings dictated by the above LFU anomalies can be also observed in processes with virtual LQ exchange, typically in the t-channel, resulting in a final state with at least one charged lepton. Inspired by the abovementioned LFU anomalies, processes with final state leptons have been studied, which can probe LQ scenarios for LFU violation observed in B meson decays [585][586][587][588]. In this case, LQ Figure 16: Diagrams contributing to LFV processes, l − α → l − β γ (left) and l − α → l − β l − γ l + δ (centre and right) with X and X scalar or vector mediators and f and f fermions.…”

Section: Lepton Flavour Universalitymentioning

confidence: 99%

GUT Physics in the Era of the LHC

et al. 2019

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Grand Unified Theories (GUTs) are one of the most interesting high-energy completions of the Standard Model, because they provide a rich, powerful and elegant group-theoretical framework able to resolve a variety of problems remaining in our current understanding of particle physics. They usually act as motivators for many low energy BSM theories, such as left-right symmetric or supersymmetric models, and they serve to fill the gap between the experimentally reachable low energies and the physics in the ultraviolet. In recent years, however, they have fallen slightly from the spotlight, in favour of "simplified" models with more specific phenomenological predictions. The aim of this review is to summarize the state of the art on GUTs and argue for their importance in modern physics. Recent advances in experiments permit to test the predictions of GUTs at different energy scales. First, as GUTs can play a role in the inflationary dynamics of the early Universe, their imprints could be found in the CMB observations by the Planck satellite. Remarkably enough, GUTs could manifest themselves also in terrestrial tests; several planned experiments aim to probe the proton stability and to establish order of magnitude higher bounds on its lifetime. Moreover, the predictions of specific GUT models could be tested even at the LHC thanks to its high energy reach, via searches for exotic states or additional contributions to flavour anomalies.

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Section: Lepton Flavour Universalitymentioning

confidence: 99%

GUT Physics in the Era of the LHC

et al. 2019

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“…One possible explanation to the departures from the SM is the existence of leptoquarks with masses O(TeV); see, for instance, Refs. [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] and references therein.…”

Section: Introductionmentioning

confidence: 99%

“…Leptoquarks can also be produced singly in association with a lepton through its coupling to a quark-lepton pair [42][43][44][45]. In fact, this process has a larger phase space than the leptoquark pair production and for O(1) couplings and 100% branching ratio into charged lepton plus up quark, the bounds (O(1.3-1.7) TeV) from the Run I data of the LHC can be even stronger than the pair production ones [46].…”

Section: Introductionmentioning

confidence: 99%

Indirect and monojet constraints on scalar leptoquarks

et al. 2019

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We obtain constraints on first-and second-generation scalar leptoquarks using the available data on dilepton (Drell-Yan) and monojet searches at the CERN Large Hadron Collider. Assuming that the leptoquark interactions respect the Standard Model gauge symmetries as well as lepton and baryon numbers, we show that the study of dilepton production enlarges the exclusion region on the mass and coupling plane with respect to the pair production searches for first-generation leptoquarks. Moreover, the monojet channel leads to a larger excluded parameter region for moderate to large values of the leptoquark Yukawa coupling than the presently available experimental results.

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“…Leather tanning is a common industry all over the world. Wastewater generated by the leather industry contains significant concentrations of recalcitrant organic compounds and hazardous pollutants [1]. The high concentrations of pollutants with low biodegradability in tannery wastewater represent a serious and actual technological and environmental challenge [2,3].…”

Section: Introductionmentioning

confidence: 99%

Cofactor‐embedded nanoporous activated carbon matrices for the immobilization of intracellular enzymes and degradation of endocrine disruptor

Saranya

Sekaran

2016

Biotech and App Biochem

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The mixed intracellular enzyme (MICE) from Citrobacter freundii, capable of degrading o-phenylene diamine (OPD), was extracted and characterized. Cofactors such as zinc and copper ions enhanced the MICE activity. The functionalized nanoporous-activated carbon (FNAC) matrix, zinc-impregnated FNAC matrix (Zn -FNAC), copper-impregnated FNAC matrix (Cu -FNAC), and zinc- and copper-impregnated FNAC matrix (Zn -Cu -FNAC) were prepared and characterized to immobilize MICE. The parameters such as time (0-240 Min), pH (1-10), temperature (20-50 ºC), amount of MICE (1-5 mg), particle size of carbon (100-600 μm), and mass of carbon (0.5-2.5 g) were optimized for immobilization of MICE on different FNAC matrices. The carrier matrices in the free and MICE immobilized form were characterized using SEM, FT-IR, XPS, XRD, thermogravimetric analysis (TGA), and DSC analyses. The kinetic and adsorption models for the immobilization of MICE on FNAC matrices were studied. The parameters such as time, pH, temperature, concentration of OPD, and agitation speed were optimized for the degradation of OPD using FNAC-MICE and MICE-immobilized metal-impregnated FNAC matrices. The maximum amount of pyruvic acid formed was found to be 133 μg/mg of OPD using Zn -Cu -FNAC-MICE matrix. The kinetic models were studied for the formation of pyruvic acid on OPD degradation and confirmed using FT-IR spectroscopy.

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Investment in S&T and Innovation in India

Cited by 18 publications

References 1 publication

GUT Physics in the Era of the LHC

GUT Physics in the Era of the LHC

Indirect and monojet constraints on scalar leptoquarks

Cofactor‐embedded nanoporous activated carbon matrices for the immobilization of intracellular enzymes and degradation of endocrine disruptor

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