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Institute of Physics, Bhubaneswar

An Autonomous Research Institute of Department of Atomic Energy, Govt. of India

  Experimental High Energy Physics

Faculty members in this area are

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Aruna Kumar Nayaknayak

Past members

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Post-doctoral Fellow

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Natasha Sharmansharma


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Rama Chandra Baralrcbaral
Sabita Dassabitads
Nihar Ranjan Panda---
Sarita Sahoosaritasahoo
Srikanta Tripathysrikanta2012

Post-doc Scholars

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M.M. Mondol---

Previous Scholars

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Chitrasen Jenachitta
Ajay Kumar Dashajay
Sadhana Dash---
Raghunath Sahoo---
Deepak Kumar Mishra---
Anand Kumar Dubey---
Bedangadas Mohantybedanga
Gobinda Charan Mishra---
Basanta Kumar Nandi---


The ALICE (A Large Ion Collider Experiment, at CERN, Geneva) Collaboration has built a dedicated heavy-ion detector to exploit the unique physics potential of nucleus-nucleus interactions at LHC energies. ALICE has an aim to study the physics of strongly interacting matter at extreme energy densities, where the formation of a new phase of matter, the quark-gluon plasma, is expected. The existence of such a phase and its properties are key issues in QCD for the understanding of confinement and of chiral-symmetry restoration. For this purpose, it is carrying out a comprehensive study of the hadrons, electrons, muons and photons produced in the collision of heavy nuclei. Alice is also studying proton-proton collisions both as a comparison with lead-lead collisions and in physics areas where Alice is competitive with other LHC experiments.


The primary physics task of STAR (Solenoidal Tracker At RHIC, at Brookhaven National Laboratory, USA) is to study the formation and characteristics of the quark-gluon plasma (QGP), a state of matter believed to exist at sufficiently high energy densities. Detecting and understanding the QGP allows us to understand better the universe in the moments after the Big Bang, where the symmetries (and lack of symmetries) of our surroundings were put into motion.

Unlike other physics experiments where a theoretical idea can be tested directly by a single measurement, STAR must make use of a variety of simultaneous studies in order to draw strong conclusions about the QGP. This is due both to the complexity of the system formed in the high-energy nuclear collision and the unexplored landscape of the physics we study. STAR therefore consists of several types of detectors, each specializing in detecting certain types of particles or characterizing their motion. These detectors work together in an advanced data acquisition and subsequent physics analysis that allows final statements to be made about the collision.


The Compressed Baryonic Matter (CBM) experiment will be one of the major scientific pillars of the future Facility for Antiproton and Ion Research (FAIR) in Darmstadt. The goal of the CBM research program is to explore the QCD phase diagram in the region of high baryon densities using high-energy nucleus-nucleus collisions. This includes the study of the equation-of-state of nuclear matter at high densities, and the search for the deconfinement and chiral phase transitions. The CBM detector is designed to measure both bulk observables with large acceptance and rare diagnostic probes such as charmed particles and vector mesons decaying into lepton pairs.


IOP has an collaboration in designing and fabricating Photon Multiplicity Detector (PMD) which is installed both in ALICE (operational) and STAR. Using the Photon Multiplicity Detector (PMD) we specialize in measuring Multiplicity and spatial distribution of photons on an event-by-event basis in high energy heavy ion experiments searching for signals of Quark-Gluon Plasma (QGP).

We study

  • Deconfinement transition: Fluctuations of global observables
  • Chiral symmetry restoration: Disoriented Chiral Condensates (DCC)
  • Matter under extreme conditions: Equation of State - Event shape and flow