Dark matter has been puzzling scientists around the world since its discovery. Many researchers tried to come up with reliable theories on dark matter amounts in the Universe and how it is involved in the expansion of the Universe. Now, Yale University scientists, as part of an international science team working on the DArk MAtter (DAMA), thanks to COSINE-100 experiment located in an underground dark-matter detector at the Yangyang Underground Laboratory in South Korea, are now studying dark matter hoping to come up with new details on this mysterious part of our Universe.
While the evidence we obtained so far says that the Universe has a massive amount of non-luminous dark matter, although we found no signal linked to it, the COSINE-100 experiment tries to challenge that observations and shed more light on the importance of the dark matter.
“For the first time in 20 years, we have a chance to resolve the DAMA conundrum,” said Yale physics professor Reina Maruyama who also participates in DAMA.
Dark Matter Mystery, Investigated By The COSINE-100 Experiment
The goal of COSINE-100 is to prove that dark matter is observable in its sodium-iodide detector array. Accordingly, sodium iodide crystal assemblies are used for the identification and consequent diminishing of radioactive backgrounds, which can detect dark matter.
The COSINE-100 experiment, which has the mission to solve the dark matter mystery, gathers about 50 scientists from all over the world, from countries like the US, South Korea, the United Kingdom, Brazil, and Indonesia. Their goal is to find a reliable method to detect dark matter and shed more light on its significance for the Universe.
“The initial results carve out a fair portion of the possible dark matter search region drawn by the DAMA signal. In other words, there is little room left for this claim to be from the dark matter interaction unless the dark matter model is significantly modified,” concluded Hyun Su Lee of the COSINE-100, and a researcher at the Center for Underground Physics at IBS.
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