{"id":203,"date":"2020-04-17T12:52:56","date_gmt":"2020-04-17T11:52:56","guid":{"rendered":"http:\/\/e595.lan\/?page_id=203"},"modified":"2025-03-11T15:09:40","modified_gmt":"2025-03-11T13:09:40","slug":"phenomenology","status":"publish","type":"page","link":"https:\/\/www2.hu-berlin.de\/rtg2575\/research\/phenomenology\/","title":{"rendered":"Phenomenology"},"content":{"rendered":"<h3>Principal investigators: Christophe Grojean, Peter Marquard<\/h3>\n<h3>Doctoral researchers: Daniele Artico, Lucine Tabatt, Yingxuan Xu<\/h3>\n<h2>Challenging the Standard Model &#8211;\u00a0From first principles to Phenomenology<\/h2>\n<p>Challenging the Standard Model (SM) by<\/p>\n<ul>\n<li>Precision physics<\/li>\n<li>Direct searches\n<ul>\n<li>Model independent<\/li>\n<li>Model dependent<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-691 size-full lazyload\" data-src=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/phenopic1.jpeg\" alt=\"\" width=\"618\" height=\"301\" data-srcset=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/phenopic1.jpeg 618w, https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/phenopic1-300x146.jpeg 300w\" data-sizes=\"(max-width: 618px) 100vw, 618px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 618px; --smush-placeholder-aspect-ratio: 618\/301;\" \/><noscript><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-691 size-full\" src=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/phenopic1.jpeg\" alt=\"\" width=\"618\" height=\"301\" srcset=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/phenopic1.jpeg 618w, https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/phenopic1-300x146.jpeg 300w\" sizes=\"(max-width: 618px) 100vw, 618px\" \/><\/noscript><\/p>\n<p>Research directions<\/p>\n<ul>\n<li>\n<div>Develop new methods for multi-loop amplitudes<\/div>\n<\/li>\n<li>\n<div>Search and characterise new physics through effective field theories (EFT)<\/div>\n<\/li>\n<li>\n<div>Model building to tackle open questions of the SM<\/div>\n<\/li>\n<\/ul>\n<h3><strong>Precision physics and multi-loop amplitudes<\/strong><\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-690 size-full lazyload\" data-src=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/picpheno2.jpg\" alt=\"\" width=\"548\" height=\"187\" data-srcset=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/picpheno2.jpg 548w, https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/picpheno2-300x102.jpg 300w\" data-sizes=\"(max-width: 548px) 100vw, 548px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 548px; --smush-placeholder-aspect-ratio: 548\/187;\" \/><noscript><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-690 size-full\" src=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/picpheno2.jpg\" alt=\"\" width=\"548\" height=\"187\" srcset=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/picpheno2.jpg 548w, https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/picpheno2-300x102.jpg 300w\" sizes=\"(max-width: 548px) 100vw, 548px\" \/><\/noscript><\/h3>\n<h3><strong>Effective field theories<\/strong><\/h3>\n<ul>\n<li>Organise our current knowledge e.g. low energy tests of SM, SM computations like gg\u2192H @ N3LO performed using EFT simplifications<\/li>\n<li>Parametrise our ignorance at higher scales (model-independent BSM searches)<\/li>\n<li>Compare sensitivity of different experiments (direct vs indirect, Future Colliders vs LHC)<\/li>\n<\/ul>\n<h3><strong>New physics and model building<\/strong><\/h3>\n<p>Problems with plausible EFT solutions<\/p>\n<ul>\n<li>\n<div>Dark Matter<\/div>\n<\/li>\n<li>\n<div>Baryogenesis<\/div>\n<\/li>\n<li>\n<div>Strong CP<\/div>\n<\/li>\n<li>\n<div>Fermion spectrum\/mixing<\/div>\n<\/li>\n<\/ul>\n<p>Mysteries challenging EFT\/QFT rules<\/p>\n<ul>\n<li>\n<div>Cosmological constant<\/div>\n<\/li>\n<li>\n<div>Weak scale hierarchy<\/div>\n<\/li>\n<li>\n<div>BH information paradox<\/div>\n<\/li>\n<li>\n<div>Very early universe<\/div>\n<\/li>\n<\/ul>\n<h3><strong>Integration into the RTG<\/strong><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-689 lazyload\" data-src=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/ellipse_pheno-300x158.jpg\" alt=\"\" width=\"452\" height=\"238\" data-srcset=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/ellipse_pheno-300x158.jpg 300w, https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/ellipse_pheno.jpg 750w\" data-sizes=\"(max-width: 452px) 100vw, 452px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 452px; --smush-placeholder-aspect-ratio: 452\/238;\" \/><noscript><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-689\" src=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/ellipse_pheno-300x158.jpg\" alt=\"\" width=\"452\" height=\"238\" srcset=\"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/ellipse_pheno-300x158.jpg 300w, https:\/\/www2.hu-berlin.de\/rtg2575\/wp-content\/uploads\/2020\/09\/ellipse_pheno.jpg 750w\" sizes=\"(max-width: 452px) 100vw, 452px\" \/><\/noscript><\/p>\n<p>A fruitful cross fertilisation is expected from Mathematical Physics: new techniques help in the development of more efficient algebraic and numerical computations, while the understanding of the structure of scattering amplitudes leads to more compact expressions for loop amplitudes. Holography offers a dual and intuitive understanding to some new physics models. Lattice gauge theory provides new algorithms with improved performance in the numerical evaluation of\u00a0 cross sections and allows the exploration of strongly coupled models of new physics.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Principal investigators: Christophe Grojean, Peter Marquard Doctoral researchers: Daniele Artico, Lucine Tabatt, Yingxuan Xu Challenging the Standard Model &#8211;\u00a0From first principles to Phenomenology Challenging the Standard Model (SM) by Precision physics Direct searches Model independent Model dependent Research directions Develop new methods for multi-loop amplitudes Search and characterise new physics through effective field theories (EFT) &#8230; <a title=\"Phenomenology\" class=\"read-more\" href=\"https:\/\/www2.hu-berlin.de\/rtg2575\/research\/phenomenology\/\">Read more <span class=\"screen-reader-text\">Phenomenology<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":291,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-json\/wp\/v2\/pages\/203"}],"collection":[{"href":"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-json\/wp\/v2\/comments?post=203"}],"version-history":[{"count":10,"href":"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-json\/wp\/v2\/pages\/203\/revisions"}],"predecessor-version":[{"id":2211,"href":"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-json\/wp\/v2\/pages\/203\/revisions\/2211"}],"up":[{"embeddable":true,"href":"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-json\/wp\/v2\/pages\/291"}],"wp:attachment":[{"href":"https:\/\/www2.hu-berlin.de\/rtg2575\/wp-json\/wp\/v2\/media?parent=203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}