Browsing by Author "S. Dash"

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ATHENA detector proposal - a totally hermetic electron nucleus apparatus proposed for IP6 at the Electron-Ion Collider
(Institute of Physics, 2022) J. Adam; L. Adamczyk; N. Agrawal; C. Aidala; W. Akers; M. Alekseev; M.M. Allen; F. Ameli; A. Angerami; P. Antonioli; N.J. Apadula; A. Aprahamian; W. Armstrong; M. Arratia; J.R. Arrington; A. Asaturyan; E.C. Aschenauer; K. Augsten; S. Aune; K. Bailey; C. Baldanza; M. Bansal; F. Barbosa; L. Barion; K. Barish; M. Battaglieri; A. Bazilevsky; N.K. Behera; V. Berdnikov; J. Bernauer; C. Berriaud; A. Bhasin; D.S. Bhattacharya; J. Bielcik; J. Bielcikova; C. Bissolotti; W. Boeglin; M. Bondì; M. Borri; F. Bossù; F. Bouyjou; J.D. Brandenburg; A. Bressan; M. Brooks; S.L. Bültmann; D. Byer; H. Caines; M. Calderon De La Barca Sanchez; V. Calvelli; A. Camsonne; L. Cappelli; M. Capua; M. Castro; D. Cavazza; D. Cebra; A. Celentano; I. Chakaberia; B. Chan; W. Chang; M. Chartier; C. Chatterjee; D. Chen; J. Chen; K. Chen; Z. Chen; H. Chetri; T. Chiarusi; M. Chiosso; X. Chu; J.J. Chwastowski; G. Cicala; E. Cisbani; E. Cline; I. Cloët; D. Colella; M. Contalbrigo; G. Contin; R. Corliss; Y. Corrales-Morales; J. Crafts; C. Crawford; R. Cruz-Torres; D. D'Ago; A. D'Angelo; N. D'Hose; J. Dainton; S. Dalla Torre; S.S. Dasgupta; S. Dash; N. Dashyan; J. Datta; M. Daugherity; R. De Vita; W. Deconinck; M. Defurne; K. Dehmelt; A. Del Dotto; F. Delcarro; G. Dellacasa; Z.S. Demiroglu; G.W. Deptuch; V. Desai; A. Deshpande; K. Devereaux; R. Dhillon; R. Di Salvo; C. Dilks; D. Dixit; S. Dobbs; X. Dong; J. Drachenberg; A. Drees; R. Dupré; M. Durham; R. Dzhygadlo; L. El Fassi; D. Elia; E. Epple; R. Esha; O. Evdokimov; O. Eyser; D. Falchieri; W. Fan; A. Fantini; R. Fatemi; S. Fazio; S. Fegan; A. Filippi; H. Fox; A. Francisco; A. Freeze; S. Furletov; Y. Furletova; C. Gal; S. Gardner; P. Garg; D. Gaskell; K. Gates; M.T.W. Gericke; F. Geurts; C. Ghosh; M. Giacalone; F. Giacomini; S. Gilchrist; D. Glazier; K. Gnanvo; L. Gonella; L.C. Greiner; N. Guerrini; L. Guo; A. Gupta; R. Gupta; W. Guryn; X. He; T. Hemmick; S. Heppelmann; D. Higinbotham; M. Hoballah; A. Hoghmrtsyan; M. Hohlmann; T. Horn; D. Hornidge; H.Z. Huang; C.E. Hyde; P. Iapozzuto; M. Idzik; B.V. Jacak; M. Jadhav; S. Jain; C. Jena; A. Jentsch; Y. Ji; Z. Ji; J. Jia; P.G. Jones; R.W.I. Jones; S. Joosten; S. Joshi; L. Kabir; G. Kalicy; G. Karyan; V.K.S. Kashyap; D. Kawall; H. Ke; M. Kelsey; J. Kim; J. Kiryluk; A. Kiselev; S.R. Klein; H. Klest; V. Kochar; W. Korsch; L. Kosarzewski; A. Kotzinian; F. Krizek; A. Kumar; K.S. Kumar; L. Kumar; R. Kumar; S. Kumar; A. Kunnath; N. Kushawaha; R. Lacey; Y.S. Lai; K. Lalwani; J. Landgraf; L. Lanza; D. Lattuada; M. Lavinsky; J.H. Lee; S.H. Lee; R. Lemmon; A. Lestone; N. Lewis; H. Li; S. Li; W. Li; W. Li; X. Li; X. Li; X. Liang; T. Ligonzo; T. Lin; J. Liu; K. Liu; M. Liu; K. Livingston; N. Liyanage; T. Ljubicic; O. Long; N. Lukow; Y. Ma; J. Mammei; F. Mammoliti; K. Mamo; I. Mandjavidze; S. Maple; D. Marchand; A. Margotti; C. Markert; P. Markowitz; T. Marshall; A. Martin; H. Marukyan; A. Mastroserio; S. Mathew; S. Mayilyan; C. Mayri; M. McEneaney; Y. Mei; L. Meng; F. Méot; J. Metcalfe; Z.-E. Meziani; P. Mihir; R. Milton; A. Mirabella; M. Mirazita; A. Mkrtchyan; H. Mkrtchyan; B. Mohanty; M. Mondal; A. Morreale; A. Movsisyan; D. Muenstermann; A. Mukherjee; C. Munoz Camacho; M.J. Murray; H. Mustafa; M. Myška; B.P. Nachman; K. Nagai; R. Naik; J.P. Naim; J. Nam; B. Nandi; E. Nappi; Md. Nasim; D. Neff; D. Neiret; P.R. Newman; M. Nguyen; S. Niccolai; M. Nie; F. Noferini; J. Norman; F. Noto; A.S. Nunes; T. O'Connor; G. Odyniec; V.A. Okorokov; M. Osipenko; B. Page; C. Palatchi; D. Palmer; P. Palni; S. Pandey; D. Panzieri; S. Park; K. Paschke; C. Pastore; R.N. Patra; A. Paul; S. Paul; C. Pecar; A. Peck; I. Pegg; C. Pellegrino; C. Peng; L. Pentchev; R. Perrino; K. Piotrzkowski; T. Polakovic; M. Płoskoń; M. Posik; S. Prasad; R. Preghenella; S. Priens; E. Prifti; M. Przybycien; P. Pujahari; A. Quintero; M. Radici; S.K. Radhakrishnan; S. Rahman; S. Rathi; B. Raue; R. Reed; P. Reimer; J. Reinhold; E. Renner; L. Rignanese; M. Ripani; A. Rizzo; D. Romanov; A. Roy; N. Rubini; M. Ruspa; L. Ruan; F. Sabatié; S. Sadhukhan; N. Sahoo; P. Sahu; D. Samuel; A. Sarkar; M. Sarsour; W. Schmidke; B. Schmookler; C. Schwarz; J. Schwiening; M. Scott; I. Sedgwick; M. Segreti; S. Sekula; R. Seto; N. Shah; A. Shahinyan; D. Sharma; N. Sharma; E.P. Sichtermann; A. Signori; A. Singh; B.K. Singh; S.N. Singh; N. Smirnov; D. Sokhan; R. Soltz; W. Sondheim; S. Spinali; F. Stacchi; R. Staszewski; P. Stepanov; S. Strazzi; I.R. Stroe; X. Sun; B. Surrow; Z. Sweger; T.J. Symons; V. Tadevosyan; A. Tang; E. Tassi; L. Teodorescu; F. Tessarotto; D. Thomas; J.H. Thomas; T. Toll; L. Tomášek; F. Torales-Acosta; P. Tribedy; Triloki; V. Tripathi; R. Trotta; M. Trzebiński; B.A. Trzeciak; O. Tsai; Z. Tu; R. Turrisi; C. Tuvè; T. Ullrich; G.M. Urciuoli; A. Valentini; S. Vallarino; M. Vandenbroucke; J. Vanek; G. Vino; G. Volpe; H. Voskanyan; A. Vossen; E. Voutier; G. Wang; Y. Wang; D. Watts; N. Wickramaarachchi; F. Wilson; C.-P. Wong; X. Wu; Y. Wu; J. Xie; Q.-H. Xu; Z. Xu; Z.W. Xu; C. Yang; Q. Yang; Y. Yang; Z. Ye; Z. Ye; L. Yi; Z. Yin; M. Yurov; N. Zachariou; J. Zhang; Y. Zhang; Z. Zhang; Z. Zhang; Y. Zhao; Y.X. Zhao; Z. Zhao; L. Zheng; M. Żurek
ATHENA has been designed as a general purpose detector capable of delivering the full scientific scope of the Electron-Ion Collider. Careful technology choices provide fine tracking and momentum resolution, high performance electromagnetic and hadronic calorimetry, hadron identification over a wide kinematic range, and near-complete hermeticity. This article describes the detector design and its expected performance in the most relevant physics channels. It includes an evaluation of detector technology choices, the technical challenges to realizing the detector and the R&D required to meet those challenges. © 2022 The Author(s).
New Occurrence of Sapphirine-spinel-bearing Granulite from NW of Chilka Lake, Eastern Ghats Belt, Odisha
(Geological Society of India, 2019) D. Prakash; B. Vishal; A.S. Naik; R. Yadav; S.K. Rai; S. Tewari; M.K. Yadav; S. Tiwari; S. Dash; C. Pattnaik
A new locality of sapphirine-spinel-bearing granulites from the Kaithapalli area which lies NW of Chilka Lake, Odisha is reported. The area tectonically forms a northern part of Eastern Ghats belt. It occurs as small enclaves within the khondalite and pelitic granulite. The mineral assemblage includes spinel-sapphirine-garnet-cordierite-orthopyroxene-sillimanite-biotite-k-feldspar-plagioclase-quartz. Development of reaction textures and symplectites are common in the sapphirine-spinel granulites which have been used to describe reaction history. The relative XMg values among various minerals are as follows: cordierite > biotite > sapphirine > orthopyroxene > garnet > spinel. The P-T evolution of these sapphirine-spinel granulites constrained through the pseudosection modelling in the NCKFMASH model system using Perple_X software indicate conditions of ultra-high temperature (UHT) metamorphism. The P-T estimates computed by isopleths define a retrograde trajectory with decompression of c.2.5 kbar from P-Tmax of c.10.5 kbar at c.950 o_C. The sequence of reactions as deduced from the symplectite assemblages, together with pseudosection modelling, from the Kaithapalli area, offer greater opportunities for providing a better picture of petrological evolution of northern part of the Eastern Ghats Belt (EGB). © 2019, Geological Society of India.
Unusual zero field cooled exchange bias and related mechanism in YBaCuFeO5-Ni0.3Zn0.7Fe2O4 composites
(American Institute of Physics, 2025) Amaresh K. Sahoo; Anupama Pati; Sujata Kumari Ray; Payala Sahoo; Vishal Kumar; Sanjay Singh; S. Dash
We report an unusual room temperature giant zero-field-cooled exchange bias (∼1 kOe) in an antiferromagnetic (100 − x)YBaCuFeO5-ferrimagnetic (x) Ni0.3Zn0.7Fe2O4 composite. The solid state route is adopted to prepare these dilute weight% (x = 1, 3, and 5) ferrite based composites. The incorporation of ferrite phase improves the interfacial tensile strain and grain boundary volume fraction in the said composite. The incommensurate to commensurate magnetic transition (TN2) of YBaCuFeO5 is shifted to a high temperature by 10 K with the lowest concentration and indistinguishable in higher concentrations due to the magnetic dominance of ferrites. The irreversibility of magnetization due to the field history mostly stems from the uncompensated spins and a competitive interaction among the magnetic phases at the interface. The magnetic isotherms show unusual negative exchange bias phenomena in the said system, and a large room temperature spontaneous exchange bias (∼1 kOe) is achieved with a dilute incorporation x = 5. The exchange bias field and coercive fields (HC) are, however, contrary to each other with temperature (and concentration) explained with a schematic model on the basis of dominating irreversible spins at high temperatures. In a field of ±50 kOe, the exchange bias field is dropped, while HC is increased, which might be due to the dominance of Zeeman energy over the uniaxial anisotropy. The non-collinear magnetic phase transition of YBaCuFeO5 at T ≤ 175 K plays a pivotal role in reducing the exchange bias compared to its collinear phase (300 K). Moreover, the extent of this bias field (∼1 kOe) can be considered a useful component in efficient device fabrication. © 2025 Author(s).