Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 73, Issue 12, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-013-2643-z
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Funding
- National Research Foundation (NRF)
- Ministry of Education, Science and Technology [NRF-2011-0010835]
- Science and Technology Facilities Council [ST/J000442/1] Funding Source: researchfish
- STFC [ST/J000442/1] Funding Source: UKRI
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We develop a phenomenological formalism for mixing effects between the Standard Model and hidden-sector fields, motivated by dark matter in the Universe as well as string theories. The scheme includes multiple Higgs-portal interactions in the scalar sector as well as multiple gauge-kinetic mixings in the abelian gauge sector. While some of the mixing effects can be cast in closed form, other elements can be controlled analytically only by means of perturbative expansions in the ratio of standard scales over large hidden scales. Higgs and vector-boson masses and mixings are illustrated numerically for characteristic processes.
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