Constraining Vectorlike Quark Model From B Radiative Decays

XIONG Zhao-Hua

Chinese Physics C> 2006, Vol. 30> Issue(4) : 284-288

Constraining Vectorlike Quark Model From B Radiative Decays

XIONG Zhao-Hua ^,

Theoretical Physics Group, College of Applied Science, Beijing University of Technology, Beijing 100022, China

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Abstract：
In the SU(2) singlet down type vectorlike quark model, there exist a tree level coupling z_sb of b→sZ^* and an additional D quark. In the framework we evaluate the D quark effects on B→X_sγ by running the Wilson coefficients of the effective Hamiltonian with the renormalization scale from m_D to weak scale.Using the recent measurements for B→X_sl⁺l^－,we extract rather stringent constraints on the size and CP violating phase of z_sb,and find that the zero point of the forward-backward asymmetry may have large deviation from that of the standard model and is very sensitive to z_sb, and therefore, it can be useful in probing the new physics.

References

[1]

. XIONG Z H, YANG J M. Nucl. Phys., 2001, B602: 289—306; Nucl. Phys., 2002, B628: 193—216; XIONG Z H,CHEN H S, LU L. Nucl. Phys., 1999, B561: 3—16; LUG R, XIONG Z H, CAO Y G. Nucl. Phys., 1997, B487:43—542. CHANG C-H V, CHANG D, Keung W Y. Phys. Rev., 2000,D61: 053007; Handoko L T, Morozumi T. Mod. Phys.Lett., 1995, A10: 309—3223. Ahmady M R, Nagashma M, Sugamoto A. Phys. Rev.,2001, D64: 054011; Barenboim G, Botella F G, Vives O.Nucl. Phys., 2001, B613: 285—305; Hawkins D, Silverman D. Phys. Rev., 2002, D66: 016008; Yanir T. JHEP, 2002,0206: 0444. Aubert B et al(BaBar Collaboration). hep-ph/03080165. Kaneko J et al(Belle Collaboration). Phys. Rev. Lett., 2003,90: 0218016. Cho P, Grinstein B. Nucl. Phys., 1991, B365: 279—311;GAO C S, HU J L, L#220;C D et al. Phys. Rev., 1995, D52:3978—39857. Buchalla G, Buras A, Lautenbacher M E. Rev. Mod. Phys.,1996, 68: 1125—12448. Eidelman S et al(Particle Date Group). Phys. Lett., 2004,592: 1—11099. Misiak M. Nucl. Phys., 1993, B393: 23—4510. Bobeth C, Misiak M, Urban J. Nucl. Phys., 2000, B574:291—330; Asatrian H H, Asatrain H M, Greub C et al.Phys. Rev., 2002, D65: 074004; Phys. Lett., 2001, B507:162—17211. Ghinculov A, Hurth T, Isidori et al. Nucl. Phys., 2004,B685: 351—39212. Nakao M. Int. J. Mod. Phys., 2004, A19: 934—94813. Chetyrkin K, Misiak M, Munz M. Phys. Lett., 1997, B400:206—21914. CELO Collaboration, CHEN S et al. Phys. Rev. Lett., 2001,87: 25180715. Abe K et al. Phys. Lett., 2001, B511: 151—158

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[12]	Lu Gongru , Xiong Zhaohua , Cao Yigang , Yang Yadong . A Study on Rare Radiative Decay B_c→D_sγ in Technicolor Models. Chinese Physics C, 1997, 21(5): 413-424.
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[14]	Wang Xuelei , Zhang Yimin , Yang Jinmin , Lu Gongru . Contributions of One Ceneration Technicolor Model to the Rare Decays t→cV. Chinese Physics C, 1995, 19(6): 534-539.
[15]	YUE Chongxing , LU Gongru . Investigation of Technivector Mesons Decay. Chinese Physics C, 1993, 17(11): 1002-1010.
[16]	GAN Li-Ping , SUN Jie . DISCUSSION OF Λ NON-MESONIC DECAY BY JOINT POSSESSING QUARKS MODEL. Chinese Physics C, 1989, 13(10): 890-895.
[17]	YU Hong . QUARK AND GLUON CONTENT OF η、η′AND ι(1440),THEIR DECAYS IN TWO PHOTONS AND PRODUCTIONS IN J/ψ RADIATIVE DECAY. Chinese Physics C, 1988, 12(6): 754-760.
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[19]	HUANG Ye-Qin , PENG Hong-An . HEAVY QUARKONIUM SYSTEMS CALCULATED FROM MIXED CONFINEMENT POTENTIAL MODEL. Chinese Physics C, 1986, 10(2): 190-197.
[20]	YANG Wei-Ming , DAI Wei , ZHU Zhong-Yuan . ON THE RADIATIVE DECAY OF HEAVY VECTOR MESON-INTO Higgs PARTICLE. Chinese Physics C, 1985, 9(2): 248-251.

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XIONG Zhao-Hua. Constraining Vectorlike Quark Model From B Radiative Decays[J]. Chinese Physics C, 2006, 30(4): 284-288.

XIONG Zhao-Hua. Constraining Vectorlike Quark Model From B Radiative Decays[J]. Chinese Physics C, 2006, 30(4): 284-288. shu

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Received: 2005-08-15
Revised: 2005-10-26

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Constraining Vectorlike Quark Model From B Radiative Decays

Corresponding author: XIONG Zhao-Hua,

Theoretical Physics Group, College of Applied Science, Beijing University of Technology, Beijing 100022, China

Received Date: 2005-08-15

Accepted Date: 2005-10-26

Available Online: 2006-04-05

Abstract: In the SU(2) singlet down type vectorlike quark model, there exist a tree level coupling z_sb of b→sZ^* and an additional D quark. In the framework we evaluate the D quark effects on B→X_sγ by running the Wilson coefficients of the effective Hamiltonian with the renormalization scale from m_D to weak scale.Using the recent measurements for B→X_sl⁺l^－,we extract rather stringent constraints on the size and CP violating phase of z_sb,and find that the zero point of the forward-backward asymmetry may have large deviation from that of the standard model and is very sensitive to z_sb, and therefore, it can be useful in probing the new physics.

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Constraining Vectorlike Quark Model From B Radiative Decays

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