T2K indication of relatively large θ13 and a natural perturbation to the democratic neutrino mixing pattern

  • The T2K Collaboration has recently reported a remarkable indication of the ν→ν oscillation which is consistent with a relatively large value of θ13 in the three-flavor neutrino mixing scheme. We show that it is possible to account for such a result of θ13 by introducing a natural perturbation to the democratic neutrino mixing pattern, without or with CP violation. A testable correlation between θ13 and θ23 is predicted in this ansatz. We also discuss the Wolfenstein-like parametrization of neutrino mixing, and comment on other possibilities of generating sufficiently large θ13 at the electroweak scale.
      PCAS:
  • 加载中
  • [1] Nakamura K et al. (Particle Data Group). J. Phys. G, 2010,37: 0750212 Schwetz T, Tortola M, Valle J W F. arXiv:1103.07343 Apollonio M et al. (CHOOZ collaboration). Eur. Phys. J.C, 2003, 27: 3314 Adamson A et al. (MINOS collaboration). Phys. Rev. D,2010, 82: 0511025 Fogli G L et al. Phys. Rev. Lett., 2008, 101: 1418016 Gonzalez-Garcia M C, Maltoni M, Salvado J. JHEP, 2010,1004: 0567 Gando A et al. (KamLAND collaboration). Phys. Rev. D,2011, 83: 0520028 Abe K et al. (T2K collaboration). Phys. Rev. Lett., 2011,107: 0418019 Fritzsch H, XING Z Z. Phys. Lett. B, 1996, 372: 265; Phys.Lett. B, 1998, 440: 313; Phys. Rev. D, 2000, 61: 07301610 Harrison P F, Perkins D H, Scott W G. Phys. Lett. B, 2002,530: 167; XING Z Z. Phys. Lett. B, 2002, 533: 8511 XING Z Z. Phys. Lett. B, 2011, 696: 23212 Fukugita M, Tanimoto M, Yanagida T. Phys. Rev. D, 1998,57: 4429; Tanimoto M. Phys. Lett. B, 2000, 483: 417;Branco G C, Silva-Marcos J I. Phys. Lett. B, 2002, 526:10413 Fritzsch H, XING Z Z. Phys. Lett. B, 2004, 598: 237; Rode-johann W, XING Z Z. Phys. Lett. B, 2004, 601: 176; XINGZ Z, YANG D, ZHOU S. Phys. Lett. B, 2010, 690: 30414 Fritzsch H, XING Z Z. Prog. Part. Nucl. Phys., 2000, 45:115 XING Z Z. J. Phys. G, 2003, 29: 222716 ZHANG H, XING Z Z. Eur. Phys. J. C, 2005, 41: 143;XING Z Z, ZHANG H. Phys. Lett. B, 2005, 618: 131; AIPConf. Proc., 2008, 981: 19017 Araki T, GENG C Q, XING Z Z. Phys. Lett. B, 2011, 699:27618 Antusch S et al. Phys. Lett. B, 2002, 544: 1; Antusch S,Ratz M. JHEP, 2002, 0211: 010; MEI J W, XING Z Z.Phys. Rev. D, 2004, 70: 053002; Phys. Lett. B, 2005, 623:227; MEI J W. Phys. Rev. D, 2005, 71: 073012; LUO S,XING Z Z. Phys. Lett. B, 2006, 632: 341; Goswami S etal. Phys. Rev. D, 2009, 80: 053013; Bergstrom J, OhlssonT, ZHANG H. Phys. Lett. B, 2011, 698: 29719 XING Z Z. Phys. Rev. D, 2008, 78: 011301
  • 加载中

Get Citation
XING Zhi-Zhong. T2K indication of relatively large θ13 and a natural perturbation to the democratic neutrino mixing pattern[J]. Chinese Physics C, 2012, 36(2): 101-105. doi: 10.1088/1674-1137/36/2/001
XING Zhi-Zhong. T2K indication of relatively large θ13 and a natural perturbation to the democratic neutrino mixing pattern[J]. Chinese Physics C, 2012, 36(2): 101-105.  doi: 10.1088/1674-1137/36/2/001 shu
Milestone
Received: 2011-08-31
Revised: 2011-05-06
Article Metric

Article Views(154)
PDF Downloads(474)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

T2K indication of relatively large θ13 and a natural perturbation to the democratic neutrino mixing pattern

    Corresponding author: XING Zhi-Zhong,
  • Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Abstract: The T2K Collaboration has recently reported a remarkable indication of the ν→ν oscillation which is consistent with a relatively large value of θ13 in the three-flavor neutrino mixing scheme. We show that it is possible to account for such a result of θ13 by introducing a natural perturbation to the democratic neutrino mixing pattern, without or with CP violation. A testable correlation between θ13 and θ23 is predicted in this ansatz. We also discuss the Wolfenstein-like parametrization of neutrino mixing, and comment on other possibilities of generating sufficiently large θ13 at the electroweak scale.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return