{"id":408872,"date":"2026-09-01T21:57:52","date_gmt":"2026-09-01T21:57:52","guid":{"rendered":"http:\/\/6a97151fb29fc487a10cc3ca"},"modified":"2026-09-01T21:57:52","modified_gmt":"2026-09-01T21:57:52","slug":"el-indicio-mas-convincente-de-una-particula-de-materia-oscura-acaba-de-aparecer","status":"publish","type":"post","link":"https:\/\/sarmiento24h.com\/?p=408872","title":{"rendered":"El indicio m\u00e1s convincente de una part\u00edcula de materia oscura acaba de aparecer"},"content":{"rendered":"<p>A m\u00e1s de un kil\u00f3metro bajo tierra, en lo que antes era una mina de oro, dentro de un tanque cargado con toneladas de xen\u00f3n l\u00edquido, \u201calgo\u201d golpe\u00f3 el n\u00facleo de un \u00e1tomo. La min\u00fascula colisi\u00f3n dej\u00f3 una firma energ\u00e9tica an\u00f3mala que los investigadores todav\u00eda no consiguen explicar satisfactoriamente. Los cient\u00edficos detr\u00e1s del experimento creen que podr\u00eda tratarse del indicio m\u00e1s convincente hasta ahora de materia oscura.<\/p>\n<p>La materia oscura es el nombre que recibe el componente invisible que constituye alrededor del 85% de la materia del universo. No parece interactuar con la luz, as\u00ed que no podemos observarla directamente con <a href=\"https:\/\/es.wired.com\/articulos\/que-imagenes-esperar-del-nancy-grace-roman-el-nuevo-telescopio-espacial-de-la-nasa-que-hara-visible-lo-invisible\">telescopios convencionales<\/a>. Sin embargo, existe abundante evidencia de sus efectos gravitacionales en el movimiento de las estrellas y galaxias, en lentes gravitacionales y en la manera en que las galaxias se agrupan para formar la enorme red de estructuras que atraviesa el universo.<\/p>\n<p>Pero el enigma de la materia oscura no es tan simple como usualmente se presenta. Los cient\u00edficos ni siquiera saben qu\u00e9 la constituye. Podr\u00eda tratarse de una sola clase de part\u00edcula o de todo un conjunto de ellas que interact\u00faan entre s\u00ed de formas que todav\u00eda no comprendemos. Las explicaciones m\u00e1s ex\u00f3ticas incluso sugieren que <a href=\"https:\/\/es.wired.com\/articulos\/la-materia-oscura-podria-estar-conformada-de-los-agujeros-negros-de-otro-universo-sugiere-un-estudio\">se trata de agujeros negros<\/a>. Existen numerosas hip\u00f3tesis sobre su naturaleza. Entre los marcos te\u00f3ricos m\u00e1s estudiados est\u00e1n las WIMPs (<em>Weakly Interacting Massive Particles<\/em>), part\u00edculas masivas que interactuar\u00edan d\u00e9bilmente con la materia convencional.<\/p>\n<p>Si las WIMPs existen y forman parte de la materia oscura que rodea nuestra galaxia, enormes cantidades podr\u00edan atravesar continuamente la Tierra sin dejar rastro. Sin embargo, cabe la posibilidad de que, muy de vez en cuando, una interact\u00fae con el n\u00facleo de un \u00e1tomo y le transfiera parte de su energ\u00eda.<\/p>\n<hr>\n<div class=\"ContentCardEmbedWrapper-hkvhYu kMYDit content-card-embed content-card-embed--stacked\" data-testid=\"ContentCardEmbedWrapper\" readability=\"18.791845493562\">\n<div class=\"ContentCardEmbedImage-bqahne fjmzkP content-card-embed__image\" data-testid=\"ContentCardEmbedImage\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj responsive-image\"><img decoding=\"async\" alt=\"una mano escribe en un pizarr\u00f3n; preguntas sobre el universo\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/6a14aa04198c0b348ee5bb38\/master\/w_120,c_limit\/1130913708 120w, https:\/\/media.es.wired.com\/photos\/6a14aa04198c0b348ee5bb38\/master\/w_240,c_limit\/1130913708 240w, https:\/\/media.es.wired.com\/photos\/6a14aa04198c0b348ee5bb38\/master\/w_320,c_limit\/1130913708 320w, https:\/\/media.es.wired.com\/photos\/6a14aa04198c0b348ee5bb38\/master\/w_640,c_limit\/1130913708 640w, https:\/\/media.es.wired.com\/photos\/6a14aa04198c0b348ee5bb38\/master\/w_768,c_limit\/1130913708 768w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/6a14aa04198c0b348ee5bb38\/master\/w_775%2Cc_limit\/1130913708\"><\/picture><\/span><\/div>\n<div class=\"ContentCardEmbedInfo-buyHWH gWLOee\" readability=\"19.68669527897\">\n<div class=\"BaseText-fEwdHD ContentCardEmbedHed-kDKGDs iUENtL dlHXUJ content-card-embed__hed\" data-testid=\"ContentCardEmbedHed\"><a class=\"BaseLink-haTOKm ContentCardEmbedHedLink-iBZsco ILkR hhUFQU content-card-embed__hed-link link\" href=\"https:\/\/es.wired.com\/articulos\/los-fisicos-no-estan-de-acuerdo-en-casi-nada-sobre-el-universo-muestra-una-inmensa-encuesta\" data-testid=\"ContentCardEmbedHedLink\">Los f\u00edsicos no est\u00e1n de acuerdo en casi nada sobre el Universo, muestra una inmensa encuesta<\/a><\/div>\n<p>De la cosmolog\u00eda a los agujeros negros y de la mec\u00e1nica a la gravedad cu\u00e1ntica: los expertos en f\u00edsica parecen estar divididos en todo.<\/p>\n<\/div>\n<\/div>\n<hr>\n<h2>\u00bfQu\u00e9 es lo que impact\u00f3 al xen\u00f3n? Una WIMP, probablemente<\/h2>\n<p>El extra\u00f1o evento registrado en el Centro de Investigaci\u00f3n Subterr\u00e1nea Sanford (SURF), en Dakota del Sur, Estados Unidos, parece compatible con una interacci\u00f3n de ese tipo. Los datos indican que un n\u00facleo de xen\u00f3n recibi\u00f3 energ\u00eda y retrocedi\u00f3 dentro del detector que lo monitoreaba. Los investigadores no han conseguido explicar satisfactoriamente qu\u00e9 provoc\u00f3 el evento, mientras que algunos modelos de <a href=\"https:\/\/es.wired.com\/articulos\/antihelio-ayudaria-en-busqueda-de-materia-oscura\">WIMPs<\/a> s\u00ed podr\u00edan producir una se\u00f1al similar.<\/p>\n<p>El resultado, admiten los cient\u00edficos, es estad\u00edsticamente demasiado peque\u00f1o para ser considerado el descubrimiento de una nueva part\u00edcula. El experimento analiz\u00f3 220 d\u00edas de observaciones realizadas entre 2023 y 2024. Durante ese periodo apareci\u00f3 un solo evento an\u00f3malo de este tipo. El estudio todav\u00eda se encuentra en fase de prepublicaci\u00f3n, sin revisi\u00f3n por pares. Sin embargo, el equipo detr\u00e1s del experimento present\u00f3 sus resultados en la conferencia de Astrof\u00edsica de Part\u00edculas TeV de 2026, en Jap\u00f3n.<\/p>\n<p>\u201cCon solo un evento, no queremos adelantarnos. <strong>No estamos afirmando haber visto materia oscura.<\/strong> Pero hemos visto algo interesante que queremos compartir con la comunidad cient\u00edfica por su aportaci\u00f3n\u201d, dijo Rick Gaitskell, portavoz del experimento en un <a data-offer-url=\"https:\/\/sanfordlab.org\/news\/lz-sees-surprising-result-search-dark-matter-surf\" class=\"external-link\" data-event-click=\"{&quot;element&quot;:&quot;ExternalLink&quot;,&quot;outgoingURL&quot;:&quot;https:\/\/sanfordlab.org\/news\/lz-sees-surprising-result-search-dark-matter-surf&quot;}\" href=\"https:\/\/sanfordlab.org\/news\/lz-sees-surprising-result-search-dark-matter-surf\" rel=\"nofollow noopener\" target=\"_blank\">comunicado de prensa.<\/a><\/p>\n<p>Hay motivos para el entusiasmo. Si el impacto fue causado por materia oscura, habr\u00eda elementos suficientes para comenzar a caracterizar la part\u00edcula responsable. Por ejemplo, el equipo calcul\u00f3 que, bajo los modelos de WIMPs que analizaron, la part\u00edcula tendr\u00eda una masa superior a unas 200 veces la de un prot\u00f3n. Adem\u00e1s, la informaci\u00f3n obtenida del impacto podr\u00eda ayudar a comprender c\u00f3mo este tipo de materia podr\u00eda interactuar con la materia convencional.<\/p>\n<p>El equipo tambi\u00e9n examin\u00f3 otras posibles explicaciones. Parad\u00f3jicamente, los eventos at\u00edpicos no son algo excepcional en experimentos tan sensibles como este. Por ello, la instalaci\u00f3n utiliza distintos \u201cfiltros\u201d para reducir el ruido y reconocer interferencias producidas por part\u00edculas conocidas, radiaci\u00f3n u otros procesos capaces de imitar la se\u00f1al que est\u00e1n buscando. Este evento sobrevivi\u00f3 a ese escrutinio. Hasta ahora, los investigadores no han encontrado entre las fuentes de fondo estudiadas una explicaci\u00f3n que encaje satisfactoriamente con lo que observaron.<\/p>\n<p>\u201cEntendemos tan bien nuestro detector y las se\u00f1ales de fondo que incluso un solo evento inusual, como el que encontramos, es importante. Esperamos que los eventos de materia oscura sean extremadamente raros, por lo que apenas un pu\u00f1ado podr\u00eda marcar la primera detecci\u00f3n de materia oscura WIMP\u201d, concluy\u00f3 Sam Eriksen, autor principal del estudio.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A m\u00e1s de un kil\u00f3metro bajo tierra,&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":408873,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[46],"tags":[],"class_list":["post-408872","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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