Cancellation mechanism of dark matter direct detection in Higgs-portal and vector-portal models
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In this paper , the cancellation mechanism in the U(1) symmetric pseudo-Nambu-Goldstone-Boson Dark Matter (pNGB DM) model was studied from a multi-angle perspective.Abstract:
A bstract We present two alternative proofs for the cancellation mechanism in the U(1) symmetric pseudo-Nambu-Goldstone-Boson Dark Matter (pNGB DM) model. They help us to have a better understanding of the mechanism from multi-angle, and inspire us to propose some interesting generalizations. In the first proof, we revisit the non-linear representation method and rephrase the argument with the interaction eigenstates. In this picture, the phase mode (DM) can only have a trilinear interaction with a derivative-squared acting on the radial mode when the DM is on-shell. Thus, the DM-quark scattering generated by a mass mixing between the radial mode and the Higgs boson vanishes in the limit of zero-momentum transfer. Using the same method, we can easily generalize the model to an SO(N) model with general soft-breaking structures. In particular, we study the soft-breaking cubic terms and identify those terms which preserve the cancellation mechanism for the DM candidate. In our discussion of the second method, we find that the cancellation relies on the special structure of mass terms and interactions of the mediators. This condition can be straightforwardly generalized to the vector-portal models. We provide two examples of the vector-portal case where the first one is an SU(2) L × U(1) Y × U(1) X model and the second one is an SU(2) L × U(1) Y × U(1) B−L × U(1) X model. In the first model the vector mediators are the Z μ boson and a new U(1) X gauge boson X ν , while in the second model the mediators are the U(1) B−L and U(1) X gauge bosons. The cancellation mechanism works in both models when there are no generic kinetic mixing terms for the gauge bosons. Once the generic kinetic mixing terms are included, the first model requires a fine-tuning of the mixing parameter to avoid the stringent direct detection bound, while the second model can naturally circumvent it. read more
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A model of pseudo-Nambu-Goldstone dark matter from a softly broken SU(2) global symmetry with a U(1) gauge symmetry
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TL;DR: In this article , a model of the pseudo-Nambu-Goldstone (pNG) dark matter (DM) was proposed, and a soft symmetry breaking term that breaks the SU(2)g global symmetry into the U(1)g globally symmetric global symmetry explicitly was determined.
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Direct detection of pseudo-Nambu-Goldstone dark matter in a two Higgs doublet plus singlet extension of the SM
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<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Z</mml:mi></mml:math> boson mixing and the mass of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>W</mml:mi></mml:math> boson
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Przysiezniak,A. Quadt,Klaus Rabbertz,Klaus Rabbertz,D. L. Rees,Christoph Rembser,P. Renkel,H. Rick,D. Rigby,S. Robertson,S. A. Robins,N. L. Rodning,J. M. Roney,A. Rooke,E. Ros,S. Rosati,K. Roscoe,A. M. Rossi,M. Rosvick,P. Routenburg,Yoram Rozen,K. Runge,O. Runolfsson,U. Ruppel,D. R. Rust,R. Rylko,K. Sachs,T. Saeki,O. Sahr,Edward K. G. Sarkisyan,Edward K. G. Sarkisyan,M. Sasaki,C. Sbarra,A. D. Schaile,O. Schaile,P. Scharff-Hansen,P. Schenk,Jochen Schieck,Stefan Schmitt,T. Schörner-Sadenius,Matthias Schröder,Hans-Christian Schultz-Coulon,Michael Schulz,M. Schumacher,P. Schütz,Christoph Schwick,W. G. Scott,R. Seuster,Tara Shears,Tara Shears,B. C. Shen,Claire Shepherd-Themistocleous,Peter Sherwood,G. P. Siroli,A. Sittler,A. Skillman,Andris Skuja,A. M. Smith,T. J. Smith,G. A. Snow,R. J. Sobie,S. Söldner-Rembold,S. Spagnolo,Francesco Spanò,Francesco Spanò,R. W. Springer,M. Sproston,Achim Stahl,M. Steiert,K. Stephens,J. Steuerer,B. Stockhausen,K. Stoll,D. M. Strom,Raimund Ströhmer,F. Strumia,L. Stumpf,B. Surrow,P. Szymanski,Reda Tafirout,S. D. Talbot,Shigenori Tanaka,P. Taras,Shlomit Tarem,Richard J. K. Taylor,Marek Tasevsky,Marek Tasevsky,Richard Teuscher,M. Thiergen,M. A. Thomson,E. von Törne,E. Torrence,Sherry Towers,D. Toya,T. Trefzger,Isabel Marian Trigger,Isabel Marian Trigger,Zoltan Laszlo Trocsanyi,T. Tsukamoto,E. Tsur,A. S. Turcot,M. F. Turner-Watson,Ikuo Ueda,Balazs Ujvari,P. Utzat,B. Vachon,R. Van Kooten,P. Vannerem,R. Vértesi,M. Verzocchi,P. Vikas,Manuella Vincter,E. H. Vokurka,C. F. Vollmer,H. Voss,H. Voss,Joost Vossebeld,Joost Vossebeld,F. Wäckerle,Alexander Wagner,D. Waller,C. P. Ward,D. R. Ward,P. M. Watkins,A. T. Watson,N. K. Watson,P. S. Wells,Thorsten Wengler,Norbert Wermes,D. Wetterling,J. S. White,B. Wilkens,Graham Wilson,Graham Wilson,John Wilson,S. A. Wotton,T. R. Wyatt,S. Yamashita,G. Yekutieli,V. Zacek,D. Zer-Zion,L. Zivkovic +1675 more
TL;DR: In this paper, the results of the four LEP experiments were combined to determine fundamental properties of the W boson and the electroweak theory, including the branching fraction of W and the trilinear gauge-boson self-couplings.
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Neutrino masses and the scale of B-L violation
TL;DR: In this paper, a systematic study of neutrino masses in models with local B -L symmetry is presented, which is necessary to explain why m e is not equal m d, is related to the scale of B-L violation.
Journal ArticleDOI
Quark-lepton symmetry and B − L as the U(1) generator of the electroweak symmetry group
TL;DR: In this paper, it was shown that the U(1) part of the electroweak symmetry group can be interpreted as a local B − L symmetry, which is the left-right symmetry group SU(2) L × SU( 2) R × U( 1) L+R.
Journal ArticleDOI
Neutrino masses, neutral vector bosons and the scale of B−L breaking
TL;DR: In this article, upper and lower bounds on the masses of heavy Majorana neutrinos were derived for the minimal case with one extra Z′ boson and an extended gauge group contained in the unified group SO(10).