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Supersymmetric hybrid inflation in light of CmB experiments and swampland conjectures

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Chinese Physics C 2025年第1期49卷 114-126页

作者： Waqas Ahmed Shabbar raza Center for Fundamental Physics and School of mathematics and Physics Hubei Polytechnic UniversityHuangshi 435003China Department of Physics Federal Urdu University of ArtsScience and TechnologyKarachi 75300Pakistan

In this study,we revisit supersymmetric(SUSY)hybrid inflation within the context of considering the latest Cosmic microwave Background(CmB)observations and swampland *** demonstrate that SUSY hybrid inflation remains consistent with Planck 2018 data when radiative,soft mass,and supergravity(SUGRA)corrections are applied to the scalar *** is commonly perceived that SUSY hybrid inflation with a minimal Kahler potential results in a gauge symmetry breaking scale m of O(10^(15))GeV,leading to issues with the proton decay *** our analysis,we introduce a novel parameter space that alleviates the proton decay issue by achieving m~10^(16) GeV with m_(S)^(2)m_(3/2)>*** scenario necessitates a soft SUSY breaking scale|m_(S)|■10^(6) ***,we find that the tensor-to-scalar ratio r spans from 10^(-16) to 10^(-6),indicating a very small *** small ratio allows the modified swampland criteria to hold,although satisfying the trans-Planckian censorship conjecture(TCC)remains *** address this,we also explo non-minimal Kahler *** fixing the spectral index at n_(S)=0.9665,consistent with the central value of Planck 2018 data,and setting m=2×10^(16)GeV,we present our *** show that the canonical measure of primordial gravitational waves,r,for m_(S)=1 TeV,m_(3/2)=1 TeV,and k_(S)m 10^(-5) to 0.01,rendering it detectable by Planck and upcoming experiments such as LiteBIRD,Simons Observatory,PRISm,PIXIE,CORE,CmB-S4,and ***,we outline the parametric space and provide benchmark points for the non-minimal case to ensure compatibility with both the modified swampland conjecture and TCC.

关键词： suppersymmetry hybrid inflation swampland conjectures

Petrogenetic study of mesoproterozoic volcanic rocks of North Delhi fold belt, NW Indian shield: implications for mantle conditions during Proterozoic

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Chinese Journal Of Geochemistry 2015年第1期34卷 93-114页

作者： m.S.Azam m.Shamim Khan m.raza IGNOU Regional Center Department of Geology AMU

mesoproterozoic North Delhi fold belt of NW Indian shield comprises three volcano-sedimentary basins viz. Bayana, Alwar and Khetri aligned parallel to each other from east to west. Each basin contains excellent exposures of mafic volcanic rocks. major, trace and rare earth element abundances of volcanic rocks of the three basins are significantly diverse. Bayana and Alwar volcanics are tholeiites bearing close similarity with low Ticontinental flood basalts. However, Bayana volcanics are characteristically enriched in incompatible trace elements and REEs while Alwar volcanics display least enriched incompatible trace element abundances and flat REE patterns. The Khetri volcanics exhibit a transitional composition between tholeiite and calc-alkaline basalts. REE based source modeling suggests that Bayana suite was formed from the melts derived from 1 % to 10 %(avg.4 %) of the partial melting of a spinel lherzolite source giving a residual mineralogy of 56 % Olv, 25 % Opx and19 % Cpx. Whereas Alwar suite evolved through 12 %–20 %(avg. 15 %) partial melting of the same source with a residual mineralogy 61 % Olv, 25 % Opx and 14 % *** volcanics are exposed at two localities Kolihan and madhan–Kudhan. The Kolihan volcanics were derived from 1 % to 6 %(avg. 4 %) partial melting with residualmineralogy 56 % Olv, 25 % Opx and 19 % Cpx whereas the magma of madhan Kudhan volcanic suite was generated by 15%–30 % partial melting of the same source leaving behind 64 % Olv, 25 % Opx and 11 % Cpx as residual mineralogy. This source modeling proves that melts of Bayana and Alwar tholeiites were generated by partial melting of a common source within the spinel stability field under the influence of mantle plume. During the course of ascent, Bayana melts were crustally contaminated but Alwar melts remained unaffected. There was two tier magma production in Khetri region, one from the partial melting of the mantle wedge overlying the subducted oceanic plate which formed Kolihan

关键词：基性火山岩中元古代西印度地幔柱褶皱带岩石成因西北地盾

Dust Static Cylindrically Symmetric Solutions in f(R) Gravity

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Communications in Theoretical Physics 2014年第9期61卷 348-352页

作者： m. Farasat Shamir Zahid raza Department of Sciences and Humanities National University of Computer and Emerging SciencesLahore Campus Pakistan

This paper is devoted to investigate non-vacuum solutions of cylindrically symmetric spacetime in the context of metric f(R) gravity. We take dust matter to find energy density of the universe. In particular, we find two exact solutions, which correspond to two f(R) models in each case. The first solution provides constant curvature while the second solution corresponds to non-constant curvature. The functions of the Ricci scalar and energy densities are evaluated in each case.

关键词： f(R) gravity cylindrically symmetric spacetime

mathematical modelling of Rotavirus Disease Through Efficient methods

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Computers, materials & Continua 2022年第9期72卷 4727-4740页

作者： Ali raza Department of mathematics Govt.Maulana Zafar Ali Khan Graduate College WazirabadPunjab Higher Education Department(PHED)Lahore54000Pakistan

The design of evolutionary approaches has a vital role in the recent development of scientific *** tackle highly nonlinear complex problems,nonlinear ordinary differential equations,partial differential equations,stochastic differential equations,and many more may called computational *** rotavirus causes may include severe diarrhea,vomiting,and fever leading to rapid *** the report of the World Health Organization(WHO),approximately 600,000 children die worldwide each year,80 percent of whom live in developing *** million children are hospitalized each *** Asia,up to 45 percent of the children hospitalized for diarrhea may be infected with *** rotavirus model is categorized into five-compartment like susceptible(S),breastfeeding(m),vaccinated(V),infected(I),and recovered children(R).Positivity,boundedness,equilibria,reproduction number,and stability results are part of the qualitative analysis of the *** that,the design of the evolutionary approaches on the model predicts the efficiency,visualization,long-term behavior of the disease,and best results of the rotavirus *** the end,evolutionary computations are an appropriate tool for double-checking the qualitative examination of the model.

关键词： Rotavirus disease epidemic model methods comparison analysis

multi-solitons of Thermophoretic motion Equation Depicting the Wrinkle Propagation in Substrate-Supported Graphene Sheets

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Communications in Theoretical Physics 2019年第4期71卷 362-366页

作者： Ahmad Javid Nauman raza m.S.Osman Department of mathematics University of the Punjab Quaid-e-Azam Campus Department of mathematics Faculty of Science Cairo University Department of mathematics Duba University College University of Tabuk

The paper addresses the thermophoretic motion(Tm) equation, which is serviced to describe soliton-like thermophoresis of wrinkles in graphene sheet based on Korteweg-de Vries(KdV) equation. The generalized uni?ed method is capitalized to construct wrinkle-like multiple soliton solutions. Graphical analysis of one, two, and threesoliton solutions is carried out to depict certain properties like width, amplitude, shape, and open direction are adjustable through various parameters.

关键词： thermophoretic motion equation generalized unified method multiple soliton solution graphene sheets

Experimental investigation of evaporative cooling systems for agricultural storage and livestock air-conditioning in Pakistan

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Building Simulation 2021年第3期14卷 617-631页

作者： Hafiz m.U.raza muhammad Sultan majid Bahrami Alamgir A.Khan Department of Agricultural Engineering Bahauddin Zakariya UniversityBosan RoadMultan 60800Pakistan Laboratory for Alternative Energy Conversion(LAEC) School of Mechatronic Systems EngineeringSimon Fraser UniversitySurreyBCCanada Department of Agricultural Engineering Muhammad Nawaz Shareef University ofAgricultureMultan 60000Pakistan

Evaporative cooling(EC)is an ancient technique that is usually suitable for hot and dry climatic conditions due to the potential of water vapor *** this study,three kinds of evaporative cooling systems such as direct EC(DEC),indirect EC(IEC),and maisotsenko cycle EC(mEC)were locally developed at *** performance of the systems was evaluated and compared for agricultural storage and livestock air-conditioning application in *** experiments were performed for climatic conditions of multan city(Pakistan)and the data were collected for hourly and daily *** to the results,it was observed that the DEC system has the ability to reduce the temperature of ambient air to an average of 8.5℃.Whilst IEC and mEC systems were able to drop the temperature of ambient air to an average of 6.8℃and 8.9℃,*** per the results,the DEC system remained behind to provide desired conditions for livestock and agricultural product storage applications due to excessive *** the other hand,the IEC and mEC systems can achieve the desired conditions for livestock application,but could not provide feasible conditions for various fruits and vegetable *** study concludes that hybrid EC systems can be developed to provide desired conditions for a wide range of applications under varying climatic conditions.

关键词： evaporative cooling air-conditioning dew-point wet-bulb storage livestock

Theoretical investigations of half-metallic ferromagnetism in new Half-Heusler YCrSb and YmnSb alloys using first-principle calculations

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Chinese Physics B 2016年第10期25卷 386-392页

作者： m Atif Sattar muhammad Rashid m.raza Hashmi S A Ahmad muhammad Imran Fayyaz Hussain Department of Physics Simulation Laboratory the Islamia University of Bahawalpur Department of Physics COMSATS Institute of Information Technology Department of Physics Bahauddin Zakariya University

Structural,electronic,and magnetic properties of new predicted half-Heusler YCrSb and YmnSb compounds within the ordered mgAgAs Clb-type structure are investigated by employing first-principal calculations based on density functional *** the calculated total energies of three possible atomic placements,we find the most stable structures regarding YCrSb and YmnSb materials,where Y,Cr(mn),and Sb atoms occupy the(0.5,0.5,0.5),(0.25,0.25,0.25),and(0,0,0) positions,***,structural properties are explored for the non-magnetic and ferromagnetic and anti-ferromagnetic states and it is found that both materials prefer ferromagnetic *** electronic band structure shows that YCrSb has a direct band gap of 0.78 eV while YmnSb has an indirect band gap of 0.40 eV in the majority spin *** findings show that YCrSb and YmnSb materials exhibit half-metallic characteristics at their optimized lattice constants of 6.67  and 6.56 ,*** half-metallicities associated with YCrSb and YmnSb are found to be robust under large in-plane strains which make them potential contenders for spintronic applications.

关键词： electronic structures density functional theory metals and alloys other ferromagnetic metals and alloys

Theoretical calculations of structural, electronic, and elastic properties of CdSe_(1-x)Te_x:A first principles study

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Chinese Physics B 2016年第7期25卷 324-330页

作者： m Shakil muhammad Zafar Shabbir Ahmed muhammad raza-ur-rehman Hashmi m A Choudhary T Iqbal Department of Physics Hafiz Hayat Campus University of Gujrat Simulation Laboratory Department of Physics the Islamia University of Bahawalpur

The plane wave pseudo-potential method was used to investigate the structural, electronic, and elastic properties of Cd Se_（1-x）Te_x in the zinc blende phase. It is observed that the electronic properties are improved considerably by using LDA ＋ U as compared to the LDA approach. The calculated lattice constants and bulk moduli are also comparable to the experimental results. The cohesive energies for pure Cd Se and Cd Te binary and their mixed alloys are calculated. The second-order elastic constants are also calculated by the Lagrangian theory of elasticity. The elastic properties show that the studied material has a ductile nature.

关键词： first principles calculations density functional theory II–VI semiconductors structural electronic and elastic properties

Changing trends in prevalence of different Plasmodium species with dominance of Plasmodium falciparum malaria infection in Aligarh(India)

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Asian Pacific Journal of Tropical medicine 2011年第1期4卷 64-66页

作者： Haris m Khan Fatima Shujatullah mohammad Ashfaq Adil raza Department of microbiology J.N.Medical College and HospitalA.M.U.Aligarh

Objective:To determine the prevalence of malaria in Aligarh and analyze species dominance in different years over a ***:Diagnosis of malaria was done using microscopy as gold standard,rapid antigen detection assays and quantitative buffy coat(QBC) *** stained blood smear examination was done,thick and thin films were examined for presence of different Plasmodium *** antigen detection assays employing detection of HRP-2 and parasite lactate dehydrogenase antigen(pLDH) by immunochromatography was done in patients whose blood smear found to be negative by conventional Giemsa slide *** was done in cases where there is strong clinical suspicion of malaria with blood smear negative,in patients with chronic malaria,splenomegaly,or in those patients who had inadequate treatment and for post-treatment follow ***:Plasmodium vivax and Plasmodium falciparum were only species detected in our *** prevalence of malaria in Aligarh was found to be 8.8%.The maximum prevalence of 20.1%was observed in year 2008 and lowest 2.3%in 2002. Conclusions:High prevalence of malaria is observed in this part of country with dominance of both species particularly Plasmodium falciparum should be monitored and factors accounting for occurrence should be studied to employ effective control measures.

关键词： Plasmodium falciparum Prevalence Dominance malaria