British physicists have developed an underground laboratory in the potash mine, in Yorkshire, trying to solve the mystery of dark matter.

Posted: 24 Ianuarie 2011 in astronomie/astrofizică, cosmologie, fizica cuantica, fizica gaurilor negre, Fizica particulelor elementare

 

British physicists have developed an underground laboratory in the potash mine, in Yorkshire, trying to solve the mystery of dark matter.

The experiments will realize, trapping rays and cosmic rays bombard the Earth, British specialists in the field of elementary particle physics and astoparticulelor, try using detectors, to elucidate the mystery of dark matter in the universe, says <a href = „http:/ DailyMail/ http://www.dailymail.co.uk/home/moslive/article-1348690/Dark-matter-A-British-led-Yorkshire-try-solve-universes-biggest-mystery.html „target =” _blank „> DailyMail </ .” onmouseout=”this.style.backgroundColor=’#fff'”>a>.

With the help of two detection devices are, Dark Matter Detector – Dark ZEPLIN-III and Telescope – DRIFT-II, British scientists will try to capture of dark matter, which represents more than 80% of the constitution of the universe.

The discovery of dark matter and especially the capture will be achieved through an experiment that will be done in a cube of 70 cubic meters, wrapped in a special transparent polypropylene film in a plasma environment, the target was liquid xenon will react when their nuclei are bombarded with particlule elementary be launched „flashes of light” and electrical loads will be measured by the xenon gas in the thin layer above the target, based on the theory of <a href = „http Fritz Zwicky Prin masurarea raportului dintre pulsul luminos in functie de valoarea de incarcare, echipa britanica poate spune daca „evenimentul” este de’ onmouseout=”this.style.backgroundColor=’#fff'”>: / / http://www.answers.com / topic / Fritz-Zwicky „target =” _blank „> Fritz Zwicky </ a> By measuring the ratio of the light pulse depending on the amount of load, the British team can tell if the” event „is interaction type WIMPs – Weakly interacting Massive Particle (weakly interacting massive exotic particles), or if it’s just the X-ray in 1933 the astronomer Fritz Zwicky, introduces the term „dark matter – dark matter (Dunkle matter) to explain anomaly observed by him in the Coma cluster. He calculated the mass of galaxies in this cluster, moving with extremely high speeds, and concluded that these galaxies would be „to break the cluster sis to” escape from outer space. ” As this does not happen, Fritz Zwicky to prove an „invisible matter” and noticed that besides the masses was calculated. His ideas still had to wait almost 40 years, until he be taken seriously into account by the international scientific community. Zwicky theory was not confirmed until 1970, when a young researcher, <a href = „http://www.amnh.org/education/resources/rfl/web/essaybooks/cosmic/p_rubin.html&#8221; target = ” Vera Rubin, astronom american, a confirmat existenta materiei intunecate, folosit observatiile unor galaxii spiralate care se rotesc cu viteze mari, ajungand la concluzia ca ceeace se vede reprezinta doar o fractiune din masa galaxiilor.” onmouseout=”this.style.backgroundColor=’#fff'”>_blank „> Vera Rubin </ a>, American astronomer, confirmed the existence of dark matter, which used observations of spiral galaxies rotate at high speeds, reaching the conclusion that what is seen is only a fraction of the mass of galaxies.

Dr. Henrique Araujo, a lecturer at Imperial College London, who is the project leader ZEPLIN-III, said the chances of discovering dark matter, which represents up to 85% of the universe is small.

Cercetatorii englezi incearca sa rezolve misterul materiei intunecate

 

Fizicienii britanici, au realizat un laborator subteran, in mina de potasiu, din Yorkshire, incercand sa resolve misterul materiei intunecate.

Prin experimentele pe care vor realize, captand razele si radiatiile cosmice care bombardeaza Pamantul, specialistii britanici din domeniul fizicii particulelor elementare si a astoparticulelor, incearca cu ajutorul unor detectori, sa elucideze misterul materiei intunecate din Univers, scrie <a href=”http://www.dailymail.co.uk/home/moslive/article-1348690/Dark-matter-A-British-led-Yorkshire-try-solve-universes-biggest-mystery.html” target=”_blank”>DailyMail</a>.

Cu ajutorul a doua dispositive de detectie, sunt, Dark Matter Detector – ZEPLIN-III si Dark Telescope – DRIFT-II, cercetatorii britanici vor incerca captarea materiei intunecate, care reprezinta mai mult de 80% din constitutia Universului.

Descoperirea si mai ales captarea materiei intunecate, se va realiza printr-un experiment care se va realiza intr-un cub de 70 m cubi, invelit intr-o folie transparenta speciala din polipropilena, intr-un mediu plasmatic, tinta, fiind xenonul lichid care va reactiona atunci cand nucleele sale vor fi bombardate cu particlule elementare, declansandu-se “fulgere de lumina” si sarcini electrice care vor fi masurate in stratul subtire de xenon gazos de deasupra tintei, bazandu-se pe teoria lui <a href=”http://www.answers.com/topic/fritz-zwicky” target=”_blank”>Fritz Zwicky</a> Prin masurarea raportului dintre pulsul luminos in functie de valoarea de incarcare, echipa britanica poate spune daca „evenimentul” este de tip interacţiune WIMP – Weakly Interacting Massive Particle( particule exotice masive care interactioneaza slab), sau dacă este vorba doar de raze X. In 1933, astronomul Fritz Zwicky, introduce termenul de “materie intunecata”- dark matter(dunkle materie) pentru a explica anomalia observata de el in Clusterul Coma. El a calculat masa galaxiilor din acest cluster, care se deplaseaza cu viteze extreme de mari, si a concluzionat faptul ca aceste galaxii ar trebui “sa se rupa din cluster” sis a “scape din spatiul cosmic”. Cum acest lucru nu se intampla, Fritz Zwicky a demonstrate existenta unei “materii invizibile” pe langa cea observata si a carei mase fusese calculate. Ideile sale au trebuit sa astepte inca aproape 40 de ani, pana cand sa fie luate serios in considerare de comunitatea stiintifica internationala. Teoria Zwicky nu a fost confirmată pana in anul 1970, atunci cand tanara cercetatoare, <a href=”http://www.amnh.org/education/resources/rfl/web/essaybooks/cosmic/p_rubin.html” target=”_blank”>Vera Rubin</a>, astronom american, a confirmat existenta materiei intunecate, folosit observatiile unor galaxii spiralate care se rotesc cu viteze mari, ajungand la concluzia ca ceeace se vede reprezinta doar o fractiune din masa galaxiilor.

Dr. Henrique Araujo, lector la Colegiul Imperial din Londra, care este liderul proiectului ZEPLIN-III, a precizat ca sansele de descoperire a materiei intunecate care reprezinta pana la 85% din masa universului, sunt mici,

Anunțuri

Lasă un răspuns

Completează mai jos detaliile tale sau dă clic pe un icon pentru a te autentifica:

Logo WordPress.com

Comentezi folosind contul tău WordPress.com. Dezautentificare / Schimbă )

Poză Twitter

Comentezi folosind contul tău Twitter. Dezautentificare / Schimbă )

Fotografie Facebook

Comentezi folosind contul tău Facebook. Dezautentificare / Schimbă )

Fotografie Google+

Comentezi folosind contul tău Google+. Dezautentificare / Schimbă )

Conectare la %s