7,435 research outputs found

    Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)' models

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    We examine the observability of heavy neutrino (nu_h) signatures of a U(1)' enlarged Standard Model (SM) encompassing three heavy Majorana neutrinos alongside the known light neutrino states at the the Large Hadron Collider (LHC). We show that heavy neutrinos can be rather long-lived particles producing distinctive displaced vertices that can be accessed in the CERN LHC detectors. We concentrate here on the gluon fusion production mechanism gg -> H_{1,2} -> nu_h nu_h, where H_1 is the discovered SM-like Higgs and H_2 is a heavier state, yielding displaced leptons following nu_h decays into weak gauge bosons. Using data collected by the end of the LHC Run 2, these signatures would prove to be accessible with negligibly small background.Comment: 30 pages, journal versio

    Implications of Customer Roles in Service Supply Chain

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    Listening for the Conga

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    Enzyme activity in bioregulator-treated tomato (Solanum lycopersicon) genotypes

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    The challenges of using exogenous plant bioregulators to manipulate plant responses by researchers and producers are increasing rapidly. In previous studies, we have demonstrated that 100 mg/l concentration of the bioregulators; indole-acetic acid (IAA), indole butyric acid (IBA) and naphthalene acetic acid (NAA) is suitable for tomato growth in the field. In this work, spectrophotometric analysis was conducted to determine the level of enzymes that could affect the keeping quality of the fruitsharvested at the orange-red ripe stage following pre-sowing seed treatments with 100 mg/l solutions of the bioregulators. The NHLy 11, NHLy 12, NHLy 13, NHLy 15 and NHLy 16 genotypes were used and theactivities of lipoxygenase (LOX), catalase, peroxidase, alcohol dehydrogenase and acid phosphatase determined. All treated genotypes showed high LOX activity with a range of 0.06 - 1.07 mmol.abs.units(A234). The NAA-treated NHLy13 genotype had complete loss of catalase activity after 210 s. Peroxidase activity was higher in NAA-treated genotypes with values between 0.07 and 0.62 abs. units/g (A430) whilealcohol dehydrogenase activity suffered a decline in all IBA-treated genotypes. IAA gave consistently higher acid phosphatase activity than IBA and NAA in all the test genotypes. These findings have important implications on the biochemical changes associated with the fruits during storage and processing

    Extra Higgs Boson and Z′Z' as Portals to Signatures of Heavy Neutrinos at the LHC

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    In this paper, we discuss the potential of observing heavy neutrino (νh\nu_h) signatures of a U(1)B−LU(1)_{B-L} enlarged Standard Model (SM) encompassing three heavy Majorana neutrinos alongside the known light neutrino states at the Large Hadron Collider (LHC). We exploit the theoretical decay via a pair of heavy (non-SM-like) Higgs boson and Z′Z' production followed by νh→l±W∓(∗)\nu_h \rightarrow l^\pm W^{\mp (*)} and νh→νlZ(∗)\nu_h \rightarrow \nu_l Z^{(*)} decays, ultimately yielding a 3l+2j+ETmiss3l+2j+E_{T}^{\rm{miss}} signature and, depending upon how boosted the final state objects are, we define different possible selections aimed at improving the signal to background ratio in LHC Run 2 data for a wide range of heavy neutrino masses.Comment: 31 pages, 10 figures. arXiv admin note: text overlap with arXiv:1612.0597

    Agricultural Policy and Political Governance in Nigeria: Fiscal Sociology and the Challenges of a Rent-Seeking Economy

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    Despite the current financial crisis facing all levels of governments of Nigeria, virtually no efforts have been directed at the sociological analysis of the finances. The situation particularly begs for attention considering the dwindling agricultural status, focusing on cocoa, and the multiple socio-economic, political and cultural distortions embedded in its monolithic source of revenue. The literature is replete with the sociological analysis of pubic financial management. However, those analyses appear to be much more concentrated on the advanced than the developing economies. In this review article, we attempted a public economy discourse of developing economies, focusing on the deleterious interplays between the dominant oil income and agricultural outputs and how the duo has made Nigeria a rentier economy. With a critical review of integrated literature on the sociology of oil politics; the institutional and symbolic element of the tax-dependent economy; and the historical volatility of rentier economies; we critically drew a nexus between the current life-threatening revenue profile of Nigeria and her major, if not solitary, reliance on petrodollar as well as the socio-cultural manifestations. Like this, the essay advanced the significance of fiscal sociology as a veritable tool for constructing a theory about state finances. DOI: 10.7176/JESD/10-14-08 Publication date:July 31st 202

    Colonial Basis of Anomie in African Youth: Implications for Political Governance

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    The festering phenomenon of morally deregulated conditions among African youths such as curricular impropriety, cult activities, from examination malpractice, cultism, viciousness, computer-related crimes, and sexual decadences depicts what Emile Durkheim (1893) used anomie to describe. Durkheim posited anomie as the inevitable expectations when societies become more complex, or organic, leading to impersonal behaviours, the dearth of the social bond, and normlessness. Emile Durkheim was a French Sociologist who had mobilised the coinage ‘anomie’ to explain the phenomenon of deregulated societies where interaction rules and expectations were breaking down. The demographic bulge in favour of youth in Africa has raised the stakes for the exacerbation of the lingering governance crisis should the youth continue to flounder in the disintegration of shared norms that hold the morality of societies firm from moral decadence. Most research studies have bordered on documenting that a good number of African youth have become enmeshed in depravities, such as lawlessness, violence, sharp practices, and scams. The focus of this paper provides an improved perspective by examining the social-economic and political foundations of irrational behaviour among African youth and the implications they portend. The paper argued that the youth in the modern States (former colonies) of Africa are unfortunate victims of a loose governance history: a manifestation of colonial masters’ ‘scramble for Africa’ without a whiff of consideration for the fate of the youth and post-independent leaders, who simply continued in the same fashion. The modern-day political praxis in Africa of low participation of youth and lack of youth liberty and self-development is a carry-over of not only the over-utilisation of elders as colonial proxies despite much aspiring youth but also the suppression of agitation by the youth against the commissioned elders. This conditioned many of the attitudes, which dominated policy-making and political victimisation of the youth in contemporary Africa. Thus, it is that colonial past that provided (or failed to provide) the definition of morality spectrum capable of insulating the youths against the festering anomic spree. Keywords: Youth Anomie, Social Norms, Colonialism in Africa, Moral Decadence; Political Governance DOI: 10.7176/DCS/10-7-05 Publication date:July 31st 202
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