Shadow Higgs boson from a scale-invariant hidden U(1)s model

被引：139

作者：

Chang, We-Fu ^{[1
]}

Ng, John N.

Wu, Jackson M. S.

机构：

[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan

[2] TRIUMF, Theory Grp, Vancouver, BC V6T 2A3, Canada

来源：

PHYSICAL REVIEW D | 2007年 / 75卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.75.115016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study a scale-invariant SU(2)xU(1)(Y)xU(1)(s) model which has only dimensionless couplings. The shadow U(1)(s) is hidden, and it interacts with the standard model (SM) solely through mixing in the scalar sector and kinetic mixing of the U(1) gauge bosons. The gauge symmetries are broken radiatively by the Coleman-Weinberg mechanism. Lifting of the flat direction in the scalar potential gives rise to a light scalar, the scalon, or the shadow Higgs, and a heavier scalar which we identify as the SM Higgs boson. The phenomenology of this model is discussed. In particular, the constraints on the shadow Higgs in different mass ranges, and the possibility of discovering a shadow Higgs with a mass a few tens of GeV in precision t-quark studies at the LHC, are investigated.

引用

页数：10

共 36 条

[1] Search for the standard model Higgs boson at LEP [J].

Abbaneo, D ;

Abbiendi, G ;

Barate, R ;

Heister, A ;

Schael, S ;

Barate, R ;

Bruneliere, R ;

De Bonis, I ;

Decamp, D ;

Goy, C ;

Jezequel, S ;

Lees, JP ;

Martin, F ;

Merle, E ;

Minard, MN ;

Pietrzyk, B ;

Trocme, B ;

Boix, G ;

Bravo, S ;

Casado, MP ;

Chmeissani, M ;

Crespo, JM ;

Fernandez, E ;

Fernandez-Bosman, M ;

Garrido, L ;

Grauges, E ;

Lopez, J ;

Martinez, M ;

Merino, G ;

Miquel, R ;

Mir, LM ;

Pacheco, A ;

Paneque, D ;

Ruiz, H ;

Colaleo, A ;

Creanza, D ;

De Filippis, N ;

de Palma, M ;

Iaselli, G ;

Maggi, G ;

Maggi, M ;

Nuzzo, S ;

Ranieri, A ;

Raso, G ;

Ruggieri, F ;

Selvaggi, G ;

Silvestris, L ;

Tempesta, P ;

Tricomi, A ;

Zito, G .

PHYSICS LETTERS B, 2003, 565 (1-4) :61-75

[2] OBSERVATION OF A RESONANCE WITH MASS M= 1814 MEV, DECAYING INTO PI-ETA-ETA [J].

BITYUKOV, SI ;

BORISOV, GV ;

BUSHNIN, YB ;

DZHELYADIN, RI ;

GOUZ, YP ;

IVANYUSHENKOV, YM ;

KACHAEV, IA ;

KARYUHIN, AN ;

KHOKHLOV, YA ;

KLUCHNIKOV, GA ;

KONOPLYANNIKOV, AK ;

KONSTANTINOV, VF ;

KOSTRIKOV, ME ;

KOSTYUKHIN, VV ;

KRIUSHIN, AA ;

LAPIN, VV ;

MATVEEV, VD ;

OBRAZTSOV, VF ;

OSTANKOV, AP ;

RYABCHIKOV, DI ;

SEMENOV, VK ;

STARCHENKO, EA ;

VANEV, VS ;

VISHNEVSKY, NK ;

VLASSOV, EV ;

ZAITSEV, AM .

PHYSICS LETTERS B, 1991, 268 (01) :137-141

[3] Nonexotic neutral gauge bosons [J].

Appelquist, T ;

Dobrescu, BA ;

Hopper, AR .

PHYSICAL REVIEW D, 2003, 68 (03)

[4]

ATLAS collaboration, CERNLHCC9914, V1

[5]

BAHATTREIDEL O, HEPPH0611162

[6] Improved naturalness with a heavy Higgs boson: An alternative road to CERN LHC physics [J].

Barbieri, Riccardo ;

Hall, Lawrence J. ;

Rychkov, Vyacheslav S. .

PHYSICAL REVIEW D, 2006, 74 (01)

[7] Final report of the E821 muon anomalous magnetic moment measurement at BNL -: art. no. 072003 [J].

Bennett, GW ;

Bousquet, B ;

Brown, HN ;

Bunce, G ;

Carey, RM ;

Cushman, P ;

Danby, GT ;

Debevec, PT ;

Deile, M ;

Deng, H ;

Deninger, W ;

Dhawan, SK ;

Druzhinin, VP ;

Duong, L ;

Efstathiadis, E ;

Farley, FJM ;

Fedotovich, GV ;

Giron, S ;

Gray, FE ;

Grigoriev, D ;

Grosse-Perdekamp, M ;

Grossmann, A ;

Hare, MF ;

Hertzog, DW ;

Huang, X ;

Hughes, VW ;

Iwasaki, M ;

Jungmann, K ;

Kawall, D ;

Kawamura, M ;

Khazin, BI ;

Kindem, J ;

Krienen, F ;

Kronkvist, I ;

Lam, A ;

Larsen, R ;

Lee, YY ;

Logashenko, I ;

McNabb, R ;

Meng, W ;

Mi, J ;

Miller, JP ;

Mizumachi, Y ;

Morse, WM ;

Nikas, D ;

Onderwater, CJG ;

Orlov, Y ;

Özben, CS ;

Paley, JM ;

Peng, Q .

PHYSICAL REVIEW D, 2006, 73 (07)

[8] Scalar dark matter candidates [J].

Boem, C ;

Fayet, P .

NUCLEAR PHYSICS B, 2004, 683 (1-2) :219-263

[9] The minimal phantom sector of the standard model:: Higgs phenomenology and Dirac leptogenesis [J].

Cerdeno, David G. ;

Dedes, Athanasios ;

Underwood, Thomas E. J. .

JOURNAL OF HIGH ENERGY PHYSICS, 2006, (09)

[10] Naturalness and Higgs decays in the MSSM with a singlet [J].

Chang, Spencer ;

Fox, Patrick J. ;

Weiner, Neal .

JOURNAL OF HIGH ENERGY PHYSICS, 2006, (08)

← 1 2 3 4 →