{"id":536,"date":"2024-11-05T21:14:17","date_gmt":"2024-11-05T21:14:17","guid":{"rendered":"http:\/\/ds-web.lngs.infn.it\/?page_id=536"},"modified":"2025-08-26T02:49:41","modified_gmt":"2025-08-26T02:49:41","slug":"the-magic-of-argon","status":"publish","type":"page","link":"http:\/\/ds-web.lngs.infn.it\/index.php\/the-magic-of-argon\/","title":{"rendered":"The argon target"},"content":{"rendered":"<p><img fetchpriority=\"high\" decoding=\"async\" width=\"544\" height=\"325\" src=\"http:\/\/ds-web.lngs.infn.it\/wp-content\/uploads\/2023\/06\/searching-for-dark-matter.webp\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/p>\n<h2>There is a wide range of astronomical evidence that the visible stars<br \/>\nand gas in all galaxies \u2014 including our own \u2014 are immersed in a much<br \/>\nlarger cloud of non-luminous matter, typically containing much greater<br \/>\n(by orders of magnitude) amounts of mass. <br \/>The existence of this<br \/>\n\u201cdark matter\u201d is consistent with evidence from large-scale galaxy<br \/>\nsurveys and cosmic microwave background measurements, which indicate<br \/>\nthat the majority of matter in the universe is non-baryonic. The nature<br \/>\nof this non-baryonic component is still totally unknown, and the<br \/>\nresolution of the \u201cdark matter puzzle\u201d is of fundamental importance to<br \/>\ncosmology, astrophysics, and elementary particle physics. <br \/>One<br \/>\nleading explanation, motivated by supersymmetry theory, is that dark<br \/>\nmatter is comprised of as-yet-undiscovered Weakly Interacting Massive<br \/>\nParticles (WIMPs) formed in the early universe and subsequently<br \/>\ngravitationally clustered in association with baryonic matter. <\/p>\n<p>In<br \/>\n principle, WIMPs could be detected in terrestrial experiments through<br \/>\ntheir collisions with ordinary nuclei, giving observable low-energy<br \/>\n(&lt;100 keV) nuclear recoils. The predicted collision rates are<br \/>\nextremely small and require ultra-low background detectors with large<br \/>\n(1\u2013100 ton) target masses, located in deep underground sites to<br \/>\neliminate neutron background coming from cosmic ray muons.<\/h2>\n","protected":false},"excerpt":{"rendered":"<p>There is a wide range of astronomical evidence that the visible stars and gas in all galaxies \u2014 including our own \u2014 are immersed in a much larger cloud of non-luminous matter, typically containing much greater (by orders of magnitude) amounts of mass. The existence of this \u201cdark matter\u201d is consistent with evidence from large-scale [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","footnotes":""},"categories":[],"tags":[7],"class_list":["post-536","page","type-page","status-publish","hentry","tag-the-argon-target","entry"],"_links":{"self":[{"href":"http:\/\/ds-web.lngs.infn.it\/index.php\/wp-json\/wp\/v2\/pages\/536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/ds-web.lngs.infn.it\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/ds-web.lngs.infn.it\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/ds-web.lngs.infn.it\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/ds-web.lngs.infn.it\/index.php\/wp-json\/wp\/v2\/comments?post=536"}],"version-history":[{"count":5,"href":"http:\/\/ds-web.lngs.infn.it\/index.php\/wp-json\/wp\/v2\/pages\/536\/revisions"}],"predecessor-version":[{"id":727,"href":"http:\/\/ds-web.lngs.infn.it\/index.php\/wp-json\/wp\/v2\/pages\/536\/revisions\/727"}],"wp:attachment":[{"href":"http:\/\/ds-web.lngs.infn.it\/index.php\/wp-json\/wp\/v2\/media?parent=536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ds-web.lngs.infn.it\/index.php\/wp-json\/wp\/v2\/categories?post=536"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ds-web.lngs.infn.it\/index.php\/wp-json\/wp\/v2\/tags?post=536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}