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Analysis of strong decays of su(3)partners ofΩ(2.12.baryon

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Chinese physics C 2024年第8期48卷 34-41页

作者： t.M.Aliev s.Bilmis M.savci department of physics Middle East Technical UniversityAnkara 06800Turkey tuBItAk uLAkBIM Ankara 06510Turkey

We estimate the coupling constants and decay widths of the su(3)partners of theΩ(2.12.hyperon,as discovered by the BELLE Collaboration,using the distribution amplitudes of the octet baryons within the light cone sum rules *** study includes a comparison of the obtained results for the relevant decay widths with those derived within the framework of the flavor su(3)*** observe a good agreement between the predictions of both ***,our result on the decay width ofΩ→Ξk is compatible with the existing experimental result within the uncertainties of the model *** results can provide helpful insights for determining the nature of the su(3)partners of theΩ(2.12.baryon.

关键词： coupling constants light cone sum rule hyperon

search for production of dark fermion candidates in association with heavy neutral gauge boson decaying to dimuon in proton-proton collisions at√s=8 teV using CMs open data

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Chinese physics C 2024年第4期48卷 6-13页

作者： Y.Mahmoud H.Abdallah M.t.Hussein s.Elgammal Centre for theoretical physics The British University in EgyptEgypt physics department Faculty of ScienceCairo UniversityEgypt

In this study,we conducted a search for dark matter using a part of the data recorded by the CMs experiment during run-I of the LHC in 2.12.with a center of mass energy of 8 teV and an integrated luminosity of 11.6 fb−*** data were gathered from the CMs open *** matter,in the framework of the simplified model(mono-Z′),can be produced from proton-proton collisions in association with a new hypothetical gauge boson,Z′.thus,the search was conducted in the dimuon plus large missing transverse momentum *** benchmark scenario of mono-Z′,which is known as light vector,was used for interpreting the CMs open *** evidence of dark matter was observed,and exclusion limits were set on the masses of dark matter and Z′at 95%confidence level.

关键词： dark matter large hadron collider CMs open data search for new physics dark fermion

the CCD instrument background of the sMILE sXI

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Earth and Planetary physics 2024年第1期8卷 15-24页

作者： M.W.J.Hubbard O.Hetherington D.J.Hall t.W.Buggey s.Parsons t.Arnold A.Holland C.Pagani s.sembay Centre for Electronic Imaging The Open UniversityMilton KeynesMK76AAUK X-ray and Observational astronomy Group Department of Physics&AstronomyUniversity of LeicesterLE17RHUK

the EsA and cas sMILE mission orbit is highly elliptical and will pass through multiple radiation *** soft X-ray Imager(sXI)instrument aboard has a radiation shutter door designed to close when the surrounding radiation flux is *** shutter door will close when passing below an altitude threshold to protect against trapped particles in the Earth’s Van Allen ***,two radiation environments can be approximated based on the shutter door position:open and *** instrument background for the CCDs(Charge-Coupled Devices)that form the focal plane array of the sXI were evaluated for the two *** to the correlation of the space environment with the solar cycle,the solar minima and maxima,the background was also evaluated at these two *** results demonstrated that the highest instrument background will occur during solar minima due to the main contributing source being Galactic Cosmic Rays(GCRs).It was also found that the open background was highest for solar minima and that the closed background was highest during solar *** is due to the radiation shutter door acting as a scattering centre and the changes in the energy flux distribution of the GCRs between the two solar extremes.

关键词： instrument background X-ray astronomy space radiation

From a bound excited state to a singly excited resonanceatoms in plasma environment

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From a bound excited state to a singly excited resonanceatom...

Excellent photoluminescence and electrochemical properties of sm^(3+) doped ca_(2.Mgsi_(2.O_(7) nanophosphor:Display and electrochemical sensor applications

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作者： t.n.chang~1 and t.k.fang~2.1 department of physics and astronomy,university of {2. california,los angeles,ca 90089-0484,u.s.a.

By examining in detail the structure of its state wave function,we have recently identified the presence of a singly excited resonance in the continuum for a two-electron *** resonance is different in nature than the ...

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Journal of Rare Earths 2024年第6期42卷 1046-1055,I0002页

作者： R.B.Basavaraj k.sureshkumar D.P.Aarti M.B.Madhusudana Reddy G.nagaraju t.Ramakrishnappa G.R.navyashree k.R.Venkatesha Babu k.s.Hemalatha department of physics BMS Institute of Technology and ManagementBangalore560064India department of Chemistry BMS Institute of Technology and ManagementBangalore560064India department of Chemistry School of Applied SciencesREVA UniversityBangalore560064India Energy Materials ResearchLaboratory Department of ChemistrySiddaganga Institute of TechnologyTumakuru57203KarnatakaIndia school of Physical sciences REVA UniversityBangalore560057Indi department of physics Govt.Science CollegeBengaluru560001India department of physics Maharani Science College for WomenMaharani Cluster UniversityBengaluru560001India

A series of orange-red light emitting ca_(2.Mgsi_(2.O_(7):sm^(3+)nanopowders were fabricated via low-cost ecofriendly green combustion technique using Aloe vera gel as *** phase purity of the samples were confirmed by the powder X-ray diffraction(PXRD)*** single-phase tetragonal structure is observed from the PXRD results with no additional impurity *** band gap energy of the fabricated powders was estimated by diffuse reflectance spectra(DRs)and is found to be in the range of 4.01-5.98 eV.A high resolution scanning electron microscope(sEM)was used to study the morphological behaviour of the ***-like structures are observed from the sEM *** particle size was evaluated by transmission electron microscopy(tEM)and is found to be~50 *** interplanar distance is found to be 0.53 *** properties were systematically studied in *** phosphors are successfully excited at 403 nm nuV light,producing reddish-orange characteristic *** emission peaks are centered at 558(^(4)G_(5/2.→^(6)H_(5/2.),607(^(4)G_(5/2.→^(6)H_(7/2.)and 645 nm(^(4)G_(5/2.→^(6)H_(9/2.),*** the observed peaks the red emanation(^(4)G_(5/2.→^(6)H_(7/2.)is stronger than the orange emission(^(4)G_(5/2.→^(6)H_(5/2.)in the current *** photoluminescent concentration quenching is noticed above 5 mol%sm^(3+)ion doping *** dipole-dipole interaction resulting in cross relaxation is found to be the principal cause of concentration quenching *** color features such as Commission Internationale de I’Eclairage(CIE)and correlated color temperature(CCt)were studied in *** optimized chromaticity coordinates were estimated to be(0.6363,0.3632.,which fall in the reddish-orange *** average CCt value obtained is 3362.*** average color purity is found to be~82..sm^(3+)incorporated ca_(2.Mgsi_(2.O_(7) samples are possible contender for single white light generation commercial candidates owing to

关键词： Green combustion Photoluminescence Orange-red emission Color purity sensors Rare earths

the soft X-ray Imager(sXI)on the sMILE Mission

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Earth and Planetary physics 2024年第1期8卷 5-14页

作者： s.sembay A.L.Alme D.Agnolon t.Arnold A.Beardmore A.Belén Balado Margeli C.Bicknell C.Bouldin G.Branduardi-Raymont t.Crawford J.P.Breuer t.Buggey G.Butcher R.canchal J.A.carter A.Cheney Y.Collado-Vega H.Connor t.Crawford n.Eaton C.Feldman C.Forsyth t.Frantzen G.Galgóczi J.Garcia G.Y.Genov C.Gordillo H-P.Gröbelbauer M.Guedel Y.Guo M.Hailey D.Hall R.Hampson J.Hasiba O.Hetherington A.Holland s-Y.Hsieh M.W.J.Hubbard H.Jeszenszky M.Jones t.kennedy k.koch-Mehrin s.kögl s.krucker k.D.kuntz C.Lakin G.Laky O.Lylund A.Martindale J.Miguel Mas Hesse R.nakamura k.Oksavik n.Østgaard H.Ottacher R.Ottensamer C.Pagani s.Parsons P.Patel J.Pearson G.Peikert F.s.Porter t.Pouliantis B.H.Qureshi W.Raab G.Randal A.M.Read n.M.M.Roque M.E.Rostad C.Runciman s.sachdev A.samsonov M.soman D.sibeck s.smit J.søndergaard R.speight s.stavland M.steller tianRan sun J.thornhill W.thomas k.ullaland B.Walsh D.Walton C.Wang s.Yang school of physics and astronomy University of LeicesterLeicesterLE17RHUK space Park Leicester University of LeicesterLeicesterLE17RHUK Mullard space science Laboratory University College LondonDorkingRH56NTUK Centre for Electronic Imaging Open UniversityMilton KeynesMK76 AAUK Birkeland Centre for space science Department of Physics and TechnologyUniv.of BergenN-5007 BergenNorway university of Vienna A-1010 ViennaAustria space Research Institute Austrian Academy of SciencesA-8042 GrazAustria national Institute of Aerospace technology MadridSpain EstEC European Space Agency2201 AZ NoordwijkNetherlands state key Laboratory of space Weather National Space Science CentreBeijing 100190China university of Applied sciences and Arts northwestern switzerland CH-5210 WindischSwitzerland koegl space GmbH CH-8157 DielsdorfSwitzerland space Acoustics GmbH CH-8157 DielsdorfSwitzerland Zurich university of Applied sciences 8400 WinterhurSwitzerland Genov solutions N-5172 LoddefjordNorway stM Engineering N-5165 LaksevagNorway John Hopkins university Applied physics Laboratory MD 20723USA nAsA/Goddard space Flight Centre MD 20771USA Center for space physics Boston UniversityBostonMA 02215USA department of theoretical physics and Astrophysics Masaryk University60177 BrnoCzech Republic Institute of physics E¨otvo¨s Lor´and University1053 BudapestHungary Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100045China Centro de Astrobiologia(caB) CSIC-INTAMadridSpain

the soft X-ray Imager(sXI)is part of the scientific payload of the solar wind Magnetosphere Ionosphere Link Explorer(sMILE)*** is a joint science mission between the European space Agency(EsA)and the Chinese Academy of sciences(cas)and is due for launch in *** is a compact X-ray telescope with a wide field-of-view(FOV)capable of encompassing large portions of Earth’s magnetosphere from the vantage point of the sMILE *** is sensitive to the soft X-rays produced by the solar Wind Charge eXchange(sWCX)process produced when heavy ions of solar wind origin interact with neutral particles in Earth’s *** provides a mechanism for boundary detection within the magnetosphere,such as the position of Earth’s magnetopause,because the solar wind heavy ions have a very low density in regions of closed magnetic field *** sensitivity of the sXI is such that it can potentially track movements of the magnetopause on timescales of a few minutes and the orbit of sMILE will enable such movements to be tracked for segments lasting many *** is led by the {2. of Leicester in the united kingdom(uk)with collaborating organisations on hardware,software and science support within the uk,Europe,China and the united states.

关键词： soft X-ray Imaging micropore optics large area CCD

numerical Analysis of the Magnetic Dipole Effect on a Radiative Ferromagnetic Liquid Flowing over a Porous stretched sheet

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Fluid Dynamics & Materials Processing 2024年第2期20卷 293-310页

作者： G.Dharmaiah F.Mebarek-Oudina k.s.Balamurugan n.Vedavathi department of Mathematics Narasaraopeta Engineering CollegeNarasaraopetIndia department of physics Faculty of SciencesUniversity of 20 Août 1955-SkikdaSkikdaAlgeria department of Mathematics RVR&JC College of EngineeringGunturIndia department of Mathematics Koneru Lakshmaiah Education FoundationVaddeswaramIndia

the effects of a magnetic dipole on a nonlinear thermally radiative ferromagnetic liquidﬂowing over a stretched surface in the presence of Brownian motion and thermophoresis are *** means of a similarity transformation,ordinary differential equations are derived and solved afterwards using a numerical(the BVP4C)*** impact of various parameters,namely the velocity,temperature,concentration,is presented *** is shown that the nanoparticles properties,in conjunction with the magnetic dipole effect,can increase the thermal conductivity of the engineered nanoﬂuid and,consequently,the heat *** with earlier studies indicates high accuracy and effectiveness of the numerical *** increase in the Brow-nian motion parameter and thermophoresis parameter enhances the concentration and the related boundary *** skin-friction rises when the viscosity parameter is increased.A larger value of the ferromagnetic para-meter results in a higher skin-friction and,vice versa,in a smaller nusselt number.

关键词： Brownian motion thermo-phoresis radiation magnetic dipole BVP4C non-linear

Radiative heat transfer analysis of a concave porous fin under the local thermal non-equilibrium condition:application of the clique polynomial method and physics-informed neural networks

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Applied Mathematics and Mechanics(English Edition) 2024年第9期45卷 1613-1632页

作者： k.CHAnDAn k.kARtHIk k.V.nAGARAJA B.C.PRAsAnnAkuMARA R.s.VARun kuMAR t.MuHAMMAD Amrita school of Artificial Intelligence Amrita Vishwa Vidyapeetham department of studies in Mathematics Davangere University Computational science Lab Amrita School of EngineeringAmrita Vishwa Vidyapeetham department of Pure and Applied Mathematics School of Mathematical Sciences Sunway University department of Mathematics College of Science King Khalid University

the heat transfer through a concave permeable fin is analyzed by the local thermal non-equilibrium(LtnE) model. the governing dimensional temperature equations for the solid and fluid phases of the porous extended surface are modeled, and then are nondimensionalized by suitable dimensionless terms. Further, the obtained nondimensional equations are solved by the clique polynomial method(CPM). the effects of several dimensionless parameters on the fin's thermal profiles are shown by graphical illustrations. Additionally, the current study implements deep neural structures to solve physics-governed coupled equations, and the best-suited hyperparameters are attained by comparison with various network combinations. the results of the CPM and physicsinformed neural network(PInn) exhibit good agreement, signifying that both methods effectively solve the thermal modeling problem.

关键词： 05C31 65H10 65L60 74A15 80A05 fin heat transfer local thermal non-equilibrium (LtnE) model O174.14 O414.14 physics-informed neural network (PInn) porous fin

Ground-based and additional science support for sMILE

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Earth and Planetary physics 2024年第1期8卷 275-298页

作者： J.A.carter M.Dunlop C.Forsyth k.Oksavik E.Donovon A.kavanagh s.E.Milan t.sergienko R.C.Fear D.G.sibeck M.Connors t.Yeoman X.tan M.G.G.t.taylor k.McWilliams J.Gjerloev R.Barnes D.D.Billet G.Chisham A.Dimmock M.P.Freeman D.-s.Han M.D.Hartinger s.-Y.W.Hsieh Z.-J.Hu M.k.James L.Juusola k.kauristie E.A.kronberg M.Lester J.Manuel J.Matzka I.McCrea Y.Miyoshi J.Rae L.Ren F.sigernes E.spanswick k.sterne A.steuwer t.sun M.-t.Walach B.Walsh C.Wang J.Weygand J.Wild J.Yan J.Zhang Q.-H.Zhang Planetary sciences Group School of Physics and AstronomyUniversity of LeicesterUniversity RoadLeicesterLE17RHUK Rutherford Appleton Laboratory space Science Technology Facilities CouncilOxfordshireUK school of space and Environment Beihang UniversityBeijing 100191China key Laboratory of space Environment Monitoring and Information Processing Ministry of Industry and Information TechnologyBeijing 100017China department of space and Climate physics UCLMullard Space Science LaboratoryHolmbury St.MaryDorkingSurreyRH56NTUK Birkeland Centre for space science Department of Physics and Technology.University of BergenBergenNorway department of physics and {2. University of Calgary2500 University DriveCalgaryAlbertaCanada T2N 1N4 British Antarctic survey CambridgeUK swedish Institute of space physics KirunaSweden West Highfield campus University of SouthamptonUniversity RoadSO171BJUK Goddard space Flight Center NASAGreenbeltMarylandUSA Athabasca university AthabascaCanada EstEC European Space AgencyNetherlands university of saskatchewan SaskatoonCanada the Johns Hopkins university Applied physics Laboratory LaurelMarylandUSA swedish Institude of space physics UppsalaSE 75121Sweden tongji university Shanghai 200092China Center for space Plasma physics Space Science Institute4765 Walnut Street Suite BBoulderColorado80301USA Polar Research Institute of China Shanghai 200136China Finnish Meteorological Institute(FMI) Finland department of Earth and Environmental sciences(Geophysics) Ludwig Maximilian University of Munich(LMU)MunichTheresienstr.41MunichD-80333Germany canadian space Agency MontrealCanada GFZ German Research Centre for Geosciences PotsdamGermany nagoya university Institute for Space Earth Environment ResearchCenter for Integrated Data ScienceNagoyaAichiJP 464-8601 northumbria university Newcastle upon TyneTyne and WearUK NE18ST national space science Center Chinese Academy SciencesBeijing 100190China Arctic Geophysics University Centre in Svalbard

the joint European space Agency and Chinese Academy of sciences solar wind Magnetosphere Ionosphere Link Explorer(sMILE)mission will explore global dynamics of the magnetosphere under varying solar wind and interplanetary magnetic field conditions,and simultaneously monitor the auroral response of the northern Hemisphere *** these large-scale responses with medium and fine-scale measurements at a variety of cadences by additional ground-based and space-based instruments will enable a much greater scientific impact beyond the original goals of the sMILE ***,we describe current community efforts to prepare for sMILE,and the benefits and context various experiments that have explicitly expressed support for sMILE can offer.A dedicated group of international scientists representing many different experiment types and geographical locations,the Ground-based and Additional science Working Group,is facilitating these *** include constructing an online sMILE Data Fusion Facility,the discussion of particular or special modes for experiments such as coherent and incoherent scatter radar,and the consideration of particular observing strategies and spacecraft *** anticipate growing interest and community engagement with the sMILE mission,and we welcome novel ideas and insights from the solar-terrestrial community.

关键词： magnetosphere ionosphere magnetosphere-ionosphere coupling ground-based experimentation sMILE conjunctions missions