Lepton-specific two Higgs doublet model as a solution of muon g-2 anomaly

被引:95
作者
Abe, Tomohiro [1 ]
Sato, Ryosuke [1 ]
Yagyu, Kei [2 ]
机构
[1] High Energy Accelerator Res Org KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan
[2] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
关键词
Higgs Physics; Beyond Standard Model; TREE-LEVEL UNITARITY; RADIATIVE-CORRECTIONS; STANDARD MODEL; SYMMETRY-BREAKING; BOSON MASSES; BOUNDS; SECTOR; CONSTRAINTS;
D O I
10.1007/JHEP07(2015)064
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We discuss the Type-X (lepton-specific) two Higgs doublet model as a solution of the anomaly of the muon g - 2. We consider various experimental constraints on the parameter space such as direct searches for extra Higgs bosons at the LEP II and the LHC Run-I, electroweak precision observables, the decay of B-s -> mu(+)mu(-), and the leptonic decay of the tau lepton. We find that the measurement of the tau decay provides the most important constraint, which excludes the parameter region that can explain the muon g 2 anomaly at the 1 sigma level. We then discuss the phenomenology of extra Higgs bosons and the standard model-like Higgs boson (h) to probe the scenario favored by the g - 2 data at the collider experiments. We find that the 4 tau, 3 tau and 4 tau + W/Z signatures are expected as the main signal of the extra Higgs bosons at the LHC. In addition, we clarify that the value of the h tau tau coupling is predicted to be the standard model value times about -1.6 to -1.0, and the branching fraction of the h -> gamma gamma mode deviates from the standard model prediction by -30% to -15%. Furthermore, we find that the exotic decay mode, h decaying into the Z boson and a light CP-odd scalar boson, is allowed, and its branching fraction can be a few percent. These deviations in the property of h will be tested by the precision measurements at future collider experiments.
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页数:33
相关论文
共 84 条
[1]   Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector [J].
Aad, G. ;
Abbott, B. ;
Abdallah, J. ;
Khalek, S. Abdel ;
Abdinov, O. ;
Aben, R. ;
Abi, B. ;
Abolins, M. ;
AbouZeid, O. S. ;
Abramowicz, H. ;
Abreu, H. ;
Abreu, R. ;
Abulaiti, Y. ;
Acharya, B. S. ;
Adamczyk, L. ;
Adams, D. L. ;
Adelman, J. ;
Adomeit, S. ;
Adye, T. ;
Agatonovic-Jovin, T. ;
Aguilar-Saavedra, J. A. ;
Agustoni, M. ;
Ahlen, S. P. ;
Ahmadov, F. ;
Aielli, G. ;
Akerstedt, H. ;
Akesson, T. P. A. ;
Akimoto, G. ;
Akimov, A. V. ;
Alberghi, G. L. ;
Albert, J. ;
Albrand, S. ;
Alconada Verzini, M. J. ;
Aleksa, M. ;
Aleksandrov, I. N. ;
Alexa, C. ;
Alexander, G. ;
Alexandre, G. ;
Alexopoulos, T. ;
Alhroob, M. ;
Alimonti, G. ;
Alio, L. ;
Alison, J. ;
Allbrooke, B. M. M. ;
Allison, L. J. ;
Allport, P. P. ;
Aloisio, A. ;
Alonso, A. ;
Alonso, F. ;
Alpigiani, C. .
JOURNAL OF HIGH ENERGY PHYSICS, 2015, (04) :1-74
[2]   Measurement of the Higgs boson mass from the H → γγ and H → ZZ* → 4l channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector [J].
Aad, G. ;
Abbott, B. ;
Abdallah, J. ;
Khalek, S. Abdel ;
Abdinov, O. ;
Aben, R. ;
Abi, B. ;
Abidi, S. H. ;
Abolins, M. ;
AbouZeid, O. S. ;
Abramowicz, H. ;
Abreu, H. ;
Abreu, R. ;
Abulaiti, Y. ;
Acharya, B. S. ;
Adamczyk, L. ;
Adams, D. L. ;
Adelman, J. ;
Adomeit, S. ;
Adye, T. ;
Agatonovic-Jovin, T. ;
Aguilar-Saavedra, J. A. ;
Agustoni, M. ;
Ahlen, S. P. ;
Ahmadov, F. ;
Aielli, G. ;
Akerstedt, H. ;
Akesson, T. P. A. ;
Akimoto, G. ;
Akimov, A. V. ;
Alberghi, G. L. ;
Albert, J. ;
Albrand, S. ;
Alconada Verzini, M. J. ;
Aleksa, M. ;
Aleksandrov, I. N. ;
Alexa, C. ;
Alexander, G. ;
Alexandre, G. ;
Alexopoulos, T. ;
Alhroob, M. ;
Alimonti, G. ;
Alio, L. ;
Alison, J. ;
Allbrooke, B. M. M. ;
Allison, L. J. ;
Allport, P. P. ;
Almond, J. ;
Aloisio, A. ;
Alonso, A. .
PHYSICAL REVIEW D, 2014, 90 (05)
[3]   Searches for neutral Higgs bosons in extended models [J].
Abdallah, J ;
Abreu, P ;
Adam, W ;
Adzic, P ;
Albrecht, T ;
Alderweireld, T ;
Alemany-Fernandez, R ;
Allmendinger, T ;
Allport, PP ;
Amaldi, U ;
Amapane, N ;
Amato, S ;
Anashkin, E ;
Andreazza, A ;
Andringa, S ;
Anjos, N ;
Antilogus, P ;
Apel, WD ;
Arnoud, Y ;
Ask, S ;
Asman, B ;
Augustin, JE ;
Augustinus, A ;
Baillon, P ;
Ballestrero, A ;
Bambade, P ;
Barbier, R ;
Bardin, D ;
Barker, GJ ;
Baroncelli, A ;
Battaglia, M ;
Baubillier, M ;
Becks, KH ;
Begalli, M ;
Behrmann, A ;
Ben-Haim, E ;
Benekos, N ;
Benvenuti, A ;
Berat, C ;
Berggren, M ;
Berntzon, L ;
Bertrand, D ;
Besancon, M ;
Besson, N ;
Bloch, D ;
Blom, M ;
Bluj, M ;
Bonesini, M ;
Boonekamp, M ;
Booth, PSL .
EUROPEAN PHYSICAL JOURNAL C, 2004, 38 (01) :1-28
[4]  
Akeroyd AG, 2000, PHYS LETT B, V490, P119, DOI 10.1016/S0370-2693(00)00962-X
[5]   Search for charged Higgs bosons: combined results using LEP data [J].
不详 .
EUROPEAN PHYSICAL JOURNAL C, 2013, 73 (07) :1-9
[6]  
Amhis Y., 2014, ARXIV14127515
[7]  
[Anonymous], POS CHARGED 2010 034
[8]  
[Anonymous], ARXIV11125086
[9]  
[Anonymous], HEPPH9908288
[10]  
[Anonymous], 2011, J PHYS C SER