Yogendra Pathak Viyogi (Y. P. Viyogi) is an

Indian Indian or Indians may refer to: Associated with India * of or related to India ** Indian people ** Indian diaspora ** Languages of India ** Indian English, a dialect of the English language ** Indian cuisine Associated with indigenous peoples o ...

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate cau ...

Indian National Science Academy The Indian National Science Academy (INSA) is a national academy in New Delhi New Delhi (; ) is the Capital city, capital of India and a part of the Delhi, National Capital Territory of Delhi (NCT). New Delhi is the seat of all three b ...

. He is specialized in the field of experimental

nuclear physics Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions, in addition to the study of other forms of nuclear matter. Nuclear physics should not be confused with atomic physics, which studies th ...

Early life

He born at Madhubani in the year 1948. He completed his primary education at his own village. He received his post graduate degree in

physics Physics is the scientific study of matter, its Elementary particle, fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge whi ...

from

Bihar University Babasaheb Bhimrao Ambedkar Bihar University, (abbreviated as BRABU) also known as B.R. Ambedkar Bihar University, is a state university located in Muzaffarpur. Established in 1960, the university has 37 constituent colleges and offers a range of ...

Muzaffarpur Muzaffarpur () is a city located in Muzaffarpur district on the banks of Burhi Gandak River, Burhi Gandak river in the Tirhut division of the Indian state of Bihar. It serves as the headquarters of the Tirhut division, the Muzaffarpur distri ...

Scientific career

He joined the 15th batch of Training School Programme of

Bhabha Atomic Research Centre The Bhabha Atomic Research Centre (BARC) is India's premier nuclear research facility, headquartered in Trombay, Mumbai, Maharashtra, India. It was founded by Homi Jehangir Bhabha as the Atomic Energy Establishment, Trombay (AEET) in January 1954 ...

Mumbai Mumbai ( ; ), also known as Bombay ( ; its official name until 1995), is the capital city of the Indian state of Maharashtra. Mumbai is the financial capital and the most populous city proper of India with an estimated population of 12 ...

in 1971. He was trained in experimental nuclear physics at BARC and at

Lawrence Berkeley laboratory Lawrence Berkeley National Laboratory (LBNL, Berkeley Lab) is a federally funded research and development center in the hills of Berkeley, California, United States. Established in 1931 by the University of California (UC), the laboratory is spo ...

, USA. He moved to Kolkata to work at the

Variable Energy Cyclotron Centre Variable Energy Cyclotron Centre (VECC) is a premier research and development unit of the Department of Atomic Energy, Government of India. The VECC has three campuses located in Kolkata, India and performs research in basic and applied nuclear ...

, a unit of the

Department of Atomic Energy The Department of Atomic Energy (DAE) (IAST: ''Paramāṇu Ūrjā Vibhāga'') is an Indian government department with headquarters in Mumbai, Maharashtra, India. DAE was established in 1954 with Jawaharlal Nehru as its first minister and Homi ...

and obtained his PhD in 1984 from the

University of Calcutta The University of Calcutta, informally known as Calcutta University (), is a Public university, public State university (India), state university located in Kolkata, Calcutta (Kolkata), West Bengal, India. It has 151 affiliated undergraduate c ...

. He was also a postdoctoral fellow at GANIL Laboratory in

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

from 1984 to 1986. He was Director of

Institute of Physics The Institute of Physics (IOP) is a UK-based not-for-profit learned society and professional body that works to advance physics education, physics research, research and applied physics, application. It was founded in 1874 and has a worldwide ...

Bhubaneswar Bhubaneswar () is the capital and the largest city of the States and territories of India, Indian state of Odisha. It is located in the Khordha district. The suburban region, especially the old town, was historically often depicted as ''Chakra ...

during June 2006 – June 2009. He retired from service in October 2012 as Outstanding Scientist at VECC

Kolkata Kolkata, also known as Calcutta ( its official name until 2001), is the capital and largest city of the Indian state of West Bengal. It lies on the eastern bank of the Hooghly River, west of the border with Bangladesh. It is the primary ...

Scientific works

Y P Viyogi has studied projectile fragmentation reactions involving intermediate energy of heavy nuclei at

Berkeley Berkeley most often refers to: *Berkeley, California, a city in the United States **University of California, Berkeley, a public university in Berkeley, California *George Berkeley (1685–1753), Anglo-Irish philosopher Berkeley may also refer to ...

. He has been also involved in the study of

quark gluon plasma A quark () is a type of elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei. All commonly o ...

using indigenous

photon multiplicity detector (PMD) Photon Multiplicity Detector (PMD) is a detector used in the measurement of the multiplicity and spatial distribution of photons produced in nucleus - nucleus collisions. In short form, it is denoted by PMD. It was incorporated in the WA93 experi ...

CERN The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in Meyrin, western suburb of Gene ...

Geneva Geneva ( , ; ) ; ; . is the List of cities in Switzerland, second-most populous city in Switzerland and the most populous in French-speaking Romandy. Situated in the southwest of the country, where the Rhône exits Lake Geneva, it is the ca ...

and

Brookhaven National Laboratory Brookhaven National Laboratory (BNL) is a United States Department of Energy national laboratories, United States Department of Energy national laboratory located in Upton, New York, a hamlet of the Brookhaven, New York, Town of Brookhaven. It w ...

USA The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 states and a federal capital district, Washington, D.C. The 48 contiguous ...

. He led Indian group of

physicists A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate cau ...

at the

ALICE experiment A Large Ion Collider Experiment (ALICE) is one of nine Particle detector, detector experiments at the Large Hadron Collider (LHC) at CERN. It is designed to study the conditions thought to have existed immediately after the Big Bang by measu ...

in CERN. In July 1993, Y P Viyogi published an article on heavy ion collisions having title "Ultra - relativistic heavy ion experiments: a perspective" at Pramana Journal of Physics. In 2011, he was the leader of Indian physicists in

STAR experiment The STAR detector (for Solenoidal Tracker at RHIC) is one of the four experiments at the Relativistic Heavy Ion Collider (RHIC) in Brookhaven National Laboratory, United States. The primary scientific objective of STAR is to study the formation an ...

Relativistic Heavy Ion Collider The Relativistic Heavy Ion Collider (RHIC ) is the first and one of only two operating heavy- ion colliders, and the only spin-polarized proton collider ever built. Located at Brookhaven National Laboratory (BNL) in Upton, New York, and used ...

(RHIC) in

, USA. There he was involved in the observation and detection of the

antimatter In modern physics, antimatter is defined as matter composed of the antiparticles (or "partners") of the corresponding subatomic particle, particles in "ordinary" matter, and can be thought of as matter with reversed charge and parity, or go ...

helium-4 Helium-4 () is a stable isotope of the element helium. It is by far the more abundant of the two naturally occurring isotopes of helium, making up about 99.99986% of the helium on Earth. Its nucleus is identical to an alpha particle, and consi ...

nucleus Nucleus (: nuclei) is a Latin word for the seed inside a fruit. It most often refers to: *Atomic nucleus, the very dense central region of an atom *Cell nucleus, a central organelle of a eukaryotic cell, containing most of the cell's DNA Nucleu ...

or anti-alpha. He is one of the physicists who witnessed the discovery of the heaviest anti-matter known as ''anti-alpha'' particle.

References

{{Authority control Indian physicists Nuclear physics People from Madhubani district 1948 births Living people