{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360021396512833408.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1140/epjc/s10052-020-8406-8"}},{"identifier":{"@type":"URI","@value":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-020-8406-8.pdf"}},{"identifier":{"@type":"URI","@value":"https://link.springer.com/article/10.1140/epjc/s10052-020-8406-8/fulltext.html"}}],"dc:title":[{"@value":"Exploring sizable triple Higgs couplings in the 2HDM"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>An important task at future colliders is the measurement of the triple Higgs coupling. Depending on its size relative to the Standard Model (SM) value, certain collider options result in a higher experimental accuracy. Within the framework of Two Higgs Doublet Models (2HDM) types I and II we investigate the allowed ranges for all triple Higgs couplings involving at least one light, SM-like Higgs boson. We take into account theoretical constraints (unitarity, stability), experimental constraints from direct Higgs-boson searches, measurements of the SM-like Higgs-boson properties, flavor observables and electroweak precision data. We find that the SM-type triple Higgs coupling w.r.t. its SM value, <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\lambda _{hhh}/\\lambda _{\\mathrm {SM}}$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\n                  <mml:mrow>\n                    <mml:msub>\n                      <mml:mi>λ</mml:mi>\n                      <mml:mrow>\n                        <mml:mi>hhh</mml:mi>\n                      </mml:mrow>\n                    </mml:msub>\n                    <mml:mo>/</mml:mo>\n                    <mml:msub>\n                      <mml:mi>λ</mml:mi>\n                      <mml:mi>SM</mml:mi>\n                    </mml:msub>\n                  </mml:mrow>\n                </mml:math></jats:alternatives></jats:inline-formula>, can range between <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\sim -0.5$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\n                  <mml:mrow>\n                    <mml:mo>∼</mml:mo>\n                    <mml:mo>-</mml:mo>\n                    <mml:mn>0.5</mml:mn>\n                  </mml:mrow>\n                </mml:math></jats:alternatives></jats:inline-formula> and <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\sim 1.5$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\n                  <mml:mrow>\n                    <mml:mo>∼</mml:mo>\n                    <mml:mn>1.5</mml:mn>\n                  </mml:mrow>\n                </mml:math></jats:alternatives></jats:inline-formula>. Depending on which value is realized, the HL-LHC can compete with, or is clearly inferior to the ILC. We find the coupling <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\lambda _{hhH}$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\n                  <mml:msub>\n                    <mml:mi>λ</mml:mi>\n                    <mml:mrow>\n                      <mml:mi>hhH</mml:mi>\n                    </mml:mrow>\n                  </mml:msub>\n                </mml:math></jats:alternatives></jats:inline-formula> between <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\sim -1.5$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\n                  <mml:mrow>\n                    <mml:mo>∼</mml:mo>\n                    <mml:mo>-</mml:mo>\n                    <mml:mn>1.5</mml:mn>\n                  </mml:mrow>\n                </mml:math></jats:alternatives></jats:inline-formula> and <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\sim 1.5$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\n                  <mml:mrow>\n                    <mml:mo>∼</mml:mo>\n                    <mml:mn>1.5</mml:mn>\n                  </mml:mrow>\n                </mml:math></jats:alternatives></jats:inline-formula>. Triple Higgs couplings involving two heavy Higgs bosons, <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\lambda _{hHH}$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\n                  <mml:msub>\n                    <mml:mi>λ</mml:mi>\n                    <mml:mrow>\n                      <mml:mi>hHH</mml:mi>\n                    </mml:mrow>\n                  </mml:msub>\n                </mml:math></jats:alternatives></jats:inline-formula>, <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\lambda _{hAA}$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\n                  <mml:msub>\n                    <mml:mi>λ</mml:mi>\n                    <mml:mrow>\n                      <mml:mi>hAA</mml:mi>\n                    </mml:mrow>\n                  </mml:msub>\n                </mml:math></jats:alternatives></jats:inline-formula> and <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\lambda _{hH^+H^-}$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\n                  <mml:msub>\n                    <mml:mi>λ</mml:mi>\n                    <mml:mrow>\n                      <mml:mi>h</mml:mi>\n                      <mml:msup>\n                        <mml:mi>H</mml:mi>\n                        <mml:mo>+</mml:mo>\n                      </mml:msup>\n                      <mml:msup>\n                        <mml:mi>H</mml:mi>\n                        <mml:mo>-</mml:mo>\n                      </m ..."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380021396512833408","@type":"Researcher","foaf:name":[{"@value":"F. Arco"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021396512833409","@type":"Researcher","foaf:name":[{"@value":"S. Heinemeyer"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021396512833410","@type":"Researcher","foaf:name":[{"@value":"M. J. Herrero"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"14346044"},{"@type":"EISSN","@value":"14346052"}],"prism:publicationName":[{"@value":"The European Physical Journal C"}],"dc:publisher":[{"@value":"Springer Science and Business Media LLC"}],"prism:publicationDate":"2020-09","prism:volume":"80","prism:number":"9","prism:startingPage":"884"},"reviewed":"false","dc:rights":["https://creativecommons.org/licenses/by/4.0","https://creativecommons.org/licenses/by/4.0"],"url":[{"@id":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-020-8406-8.pdf"},{"@id":"https://link.springer.com/article/10.1140/epjc/s10052-020-8406-8/fulltext.html"}],"createdAt":"2020-09-24","modifiedAt":"2021-09-24","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/2050588892108545024","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Possibility of a multi-step electroweak phase transition in the two-Higgs doublet models"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1140/epjc/s10052-020-8406-8"},{"@type":"CROSSREF","@value":"10.1093/ptep/ptac068_references_DOI_HYN2dAtVFkPTOeV1ovMUVU0Nh2F"}]}