  {"id":529342,"date":"2022-08-05T15:22:42","date_gmt":"2022-08-05T19:22:42","guid":{"rendered":"https:\/\/www.rochester.edu\/newscenter\/?p=529342"},"modified":"2022-08-09T19:56:08","modified_gmt":"2022-08-09T23:56:08","slug":"adrian-melissinos-pathbreaking-particle-physicist-mentor-529342","status":"publish","type":"post","link":"https:\/\/www.rochester.edu\/newscenter\/adrian-melissinos-pathbreaking-particle-physicist-mentor-529342\/","title":{"rendered":"Adrian Melissinos remembered as a pathbreaking particle physicist, mentor"},"content":{"rendered":"<h2 style=\"width: 85%; font-weight: bold; line-height: 135%; margin-bottom: 0.5em;\">The long-time Rochester physics professor emeritus studied the mysteries surrounding dark matter and other phenomena in particle physics.<\/h2>\n<figure id=\"attachment_529352\" aria-describedby=\"caption-attachment-529352\" style=\"width: 375px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-529352 \" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2022\/08\/Adrian-Melissinos-remembered-particle-physicist-mentor-819x1024.jpeg\" alt=\"Close-up color picture of Melissinos smiling.\" width=\"375\" height=\"469\" srcset=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2022\/08\/Adrian-Melissinos-remembered-particle-physicist-mentor-819x1024.jpeg 819w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2022\/08\/Adrian-Melissinos-remembered-particle-physicist-mentor-504x630.jpeg 504w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2022\/08\/Adrian-Melissinos-remembered-particle-physicist-mentor-768x960.jpeg 768w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2022\/08\/Adrian-Melissinos-remembered-particle-physicist-mentor-1228x1536.jpeg 1228w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2022\/08\/Adrian-Melissinos-remembered-particle-physicist-mentor-1638x2048.jpeg 1638w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2022\/08\/Adrian-Melissinos-remembered-particle-physicist-mentor.jpeg 2012w\" sizes=\"auto, (max-width: 375px) 100vw, 375px\" \/><figcaption id=\"caption-attachment-529352\" class=\"wp-caption-text\">Adrian Melissinos (Bob Palmer)<\/figcaption><\/figure>\n<p style=\"font-weight: 400;\">Adrian Melissinos, a professor of physics at the URochester from 1955 to 2022, is being remembered for his significant contributions in the search for dark matter and his skill as a mentor to generations of graduate students. <a href=\"https:\/\/www.pas.rochester.edu\/people\/faculty\/melissinos_adrian\/index.html\">Melissinos<\/a> died in July at the age of 92.<\/p>\n<p style=\"font-weight: 400;\">\u201cTo me, Adrian was a physicist\u2019s physicist,\u201d says <a href=\"https:\/\/www.pas.rochester.edu\/people\/faculty\/manly_steven\/index.html\">Steve Manly<\/a>, professor of physics at Rochester.\u00a0\u201cHe was a smart and creative individual presence in a world where the science of particle physics became more and more programmatic.\u00a0He found joy in doing physics in a way that few of us manage to do.\u201d<\/p>\n<p style=\"font-weight: 400;\">Melissinos was born in Thessaloniki, Greece, and graduated from the Greek Royal Naval Academy in 1948. He served in the Hellenic Navy, and, in 1955, began graduate studies at the Massachusetts Institute of Technology, where he earned his PhD in physics in 1958. He joined the Rochester faculty later that year.<\/p>\n<h3 style=\"font-weight: 400;\"><strong>Examining the nature of the universe<\/strong><\/h3>\n<p style=\"font-weight: 400;\">During his long career at Rochester, Melissinos developed an international reputation for his research in experimental\u00a0high-energy physics and the nature of the universe, including unravelling the mystery of dark matter. Scientists have attempted for decades to understand and detect dark matter, which accounts for about 85 percent of all matter in the universe. However, researchers have so far only inferred dark matter indirectly by observing gravitational effects that cannot be explained by standard theories of gravity. Proof of dark matter particles would fundamentally change our understanding of the makeup of the universe.<\/p>\n<p style=\"font-weight: 400;\">In the 1980s, Melissinos was involved in the first searches for cosmic axions\u2014hypothetical, very light subatomic particles that barely interact with normal matter. Scientists conjecture that axions could be one component of dark matter. The series of experiments on axions that Melissinos led at Brookhaven National Laboratory in the early 1990s was, at the time, one of the most exhaustive searches ever for dark matter and helped physicists narrow down the properties that the hypothetical particles could have.<\/p>\n<p style=\"font-weight: 400;\">\u201cThis type of search is perhaps Adrian\u2019s greatest contribution to the search for the unknown,\u201d says Kirk McDonald, a professor emeritus of physics at Princeton University.<\/p>\n<div class=\"pullquote\">Scientists conjecture that axions could be one component of dark matter. The series of experiments on axions that Melissinos led at Brookhaven National Laboratory in the early 1990s was, at the time, one of the most exhaustive searches ever for dark matter and helped physicists narrow down the properties that the hypothetical particles could have.<\/div>\n<p style=\"font-weight: 400;\">In the late 1990s, Melissinos and McDonald were members of a team of 20 physicists at Stanford Linear Accelerator Center (SLAC) who studied interactions between high-powered lasers and electrons. The team\u2019s experiments involved colliding high-energy electrons produced by SLAC\u2019s two-mile-long accelerator and photons from a powerful \u201ctabletop terawatt\u201d glass laser developed at Rochester\u2019s Laboratory for Laser Energetics. In 1997, the team made headlines around the world when their experiments provided evidence, for the first time, <a href=\"http:\/\/www.rochester.edu\/pr\/releases\/phys\/matter.htm\">of creating particles of matter from light<\/a>.<\/p>\n<p style=\"font-weight: 400;\">Melissinos\u2019s experimentation and search for axions were \u201chis passion until the very end,\u201d says his friend and colleague <a href=\"https:\/\/www.pas.rochester.edu\/people\/faculty\/das_ashok\/index.html\">Ashok Das<\/a>, a professor of physics at Rochester. \u201cJust prior to his passing away, Adrian discussed a physics question about axions with me over lunch and ended up sending me a draft of a paper a week or so later for my comments. He was already well past 90 and such was his dedication to understanding questions in physics.\u201d<\/p>\n<p style=\"font-weight: 400;\">As experiments in particle physics grew in scale and became \u201cmore mechanized with complicated computer codes,\u201d Das continues, \u201cAdrian stuck to his roots and only did small-scale experiments where he had more control and more understanding of what was going on. He wanted to understand complicated physics questions in a rational and physical way through what was already known.\u201d<\/p>\n<p style=\"font-weight: 400;\">To explain his devotion to his work, Melissinos told the <em>Rochester Review<\/em> in 1999, simply, \u201cI love the joy of discovery, and of sharing that discovery with others.\u201d<\/p>\n<h3 style=\"font-weight: 400;\"><strong>An inspiring mentor and colleague <\/strong><\/h3>\n<p style=\"font-weight: 400;\">In addition to his research, Melissinos mentored 31 PhD students during his tenure at Rochester. These students included Michael Fitch \u201901 (PhD), who, in 2001, received the Universities Research Administration\u2019s (URA) honor for the best doctoral thesis work done at Fermi National Laboratory. Under Melissinos\u2019s tutelage, Fitch developed, as part of his thesis, a new technique for positioning the beam of particles for future particle accelerators.<\/p>\n<p style=\"font-weight: 400;\">\u201cAdrian was a huge influence on me, and I grew tremendously under his supervision,\u201d says Fitch, now a researcher at the John Hopkins Applied Physics Laboratory. \u201cWith my own ideas, Adrian would have me write them up, do the calculations, and find any flaws in the logic or design\u2014an incredibly useful exercise in sharpening and refining ideas. His boundless energy, his charm, his enthusiasm, and his zeal for teaching have inspired me to this day.\u201d<\/p>\n<p style=\"font-weight: 400;\">A prolific writer, Melissinos was the author or co-author of more than 200 journal publications and of four textbooks and several monographs. His book <em>Experiments in Modern Physics<\/em> is a standard textbook used in undergraduate and graduate laboratory physics courses around the world.<\/p>\n<p style=\"font-weight: 400;\">In addition to his work at SLAC and Brookhaven National Laboratory, Melissinos was involved in research with CERN and Fermilab. He was a visiting professor at the University of Athens and a visitor at DESY, a research center in Germany. He served on many national and international organizations and advisory panels, including as chairman of the Brookhaven National Laboratory visiting committee and the SLAC Scientific Policy committee. He also served as a member of the American Physical Society Council. He was named a Fellow of the American Physical Society in 1965 and was a corresponding member of the National Academy of Athens.<\/p>\n<p style=\"font-weight: 400;\">Melissinos was predeceased by his wife of 50 years, Joyce, and his son, John. He is survived by his son, Andrew; daughter-in-law, Candice Culnane, and granddaughters, Chesney and Logan Melissinos; and many other relatives and family members in the US, Greece, Switzerland, Italy, and Australia.<\/p>\n<hr \/>\n<h3><strong>Read more<\/strong><\/h3>\n<div class=\"large-up-3\">\n<div class=\"column\" style=\"padding-left: 0px;\"><a href=\"https:\/\/www.rochester.edu\/newscenter\/dark-matter-particles-experiment-south-dakota-390272\/\"><img decoding=\"async\" style=\"margin-bottom: 10px;\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2019\/07\/fea-dark-matter-particles.jpg\" alt=\"Components and tools in an underground cavern.\" \/><strong>In an underground mine in South Dakota, researchers unravel mysteries of dark matter<\/strong><\/a><br \/>\n<span style=\"font-size: .9em;\">The digital electronics designed, developed, delivered, and installed by Rochester researchers are an integral piece of the puzzle, as an international team of scientists works to finally detect dark matter particles.<\/span><\/div>\n<div class=\"column\" style=\"padding-left: 0px;\"><a href=\"https:\/\/www.rochester.edu\/newscenter\/why-is-the-universe-made-up-almost-exclusively-of-matter-neutrinos-may-hold-the-key-425312\/\"><img decoding=\"async\" style=\"margin-bottom: 10px;\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2020\/04\/fea-Super-Kamiokande.jpg\" alt=\"Interior of Super-Kamiokande detector.\" \/><strong>Why is the universe made up almost exclusively of matter? Neutrinos may hold the key<\/strong><\/a><br \/>\n<span style=\"font-size: .9em;\">Experiments conducted in a mine in Japan may hold clues to explain why the matter than makes up the universe escaped annihilation by anti-matter during the Big Bang.<\/span><\/div>\n<div class=\"column\" style=\"padding-left: 0px;\"><a href=\"https:\/\/www.rochester.edu\/newscenter\/new-laser-technique-will-allow-more-powerful-and-smaller-particle-accelerators-421842\/\"><img decoding=\"async\" style=\"margin-bottom: 10px;\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2020\/10\/fea-milky-way-nasa.jpg\" alt=\"Milky Way galaxy as seen from International Space Station.\" \/><strong>New laser technique will allow more powerful\u2014and smaller\u2014particle accelerators<\/strong><\/a><br \/>\n<span style=\"font-size: .9em;\">Researchers at Rochester\u2019s Laboratory for Laser Energetics have outlined a method to shape intense laser light in ways that could lead to tabletop experiments to probe the Higgs boson and explore the existence of extra dimensions.<\/span><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The long-time Rochester physics professor emeritus studied the mysteries surrounding dark matter and other phenomena in particle physics.<\/p>\n","protected":false},"author":912,"featured_media":529392,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[11446,18662,3396,16072],"class_list":["post-529342","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-university-news","tag-dark-matter","tag-department-of-physics-and-astronomy","tag-obituaries","tag-school-of-arts-and-sciences"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Adrian Melissinos remembered as a 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