Impact factor of Chinese Physics C is 3.6 in 2023 Impact factor of Chinese Physics C is 3.6 in 2022 2021 Impact Factor 2.944
Advanced Search
×
近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。
本刊再次郑重声明：
（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137
（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。
（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。
                  
《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2005, Vol. 29> Issue(11) : 1033-1040 

Spontaneous Leptogenesis in Brans-Dicke Cosmology

  •  Shanghai Astronomical Observatory, CAS, Shanghai 200030, China2 Graduate School of Chinese Academy of Sciences, Beijing 100049, China3 National Astronomical Observatories, CAS, Beijing 100012, China4 Institute of High Energy Physics, CAS, Beijing 100049, China5 Institute of Theoretical Physics, CAS, Beijing 100080, China6 Hangzhou Teachers College, Hangzhou 310018, China

  • The role of the auxiliary scalar field φ of BD theory in baryon number asymmetry is discussed in this paper. We consider a derivative coupling of this gravitational scalar field to the baryon current JμB or the current of the baryon number minus lepton number JJμB-L based on a series of works of R.Morganstern about the Brans-Dicke cosmology. We find that the spontaneous baryogenesis by this coupling is able to yield sufficient baryon asymmetry nB/s～10-10 provided the time of the grand unification is a little bit earlier. In addition,Davoudiasl et al have recently introduced a new type of interaction between the Ricci scalar R and the bayon current Jμ, \partial_{\upmu}R Jμ and also proposed a mechanism for baryogenesis, the gravitational baryogenesis. However, the Einstein equation tells us that R=0 in the radiation-dominated epoch of the standard FRW cosmology. In this paper we reconsider the feasibility of having gravitational baryongenesis with such a form of interaction in radiation-filled BD cosmology. We show that R does not vanish in this case and the required baryon number asymmetry can also be achieved.
  • 加载中

  • References

    [1] . Sakharov A D. Pisma Zh. Eksp. Teor. Fiz., 1967, 5: 32—352. Cohen A, Kaplan D. Phys. Lett., 1987, B199: 2513. LI M, WANG X, FENG B et al. Phys. Rev., 2000, D65:1035114. LI M, ZHANG X. Phys. Lett., 2003, B573: 205. Felice A D, Nasri S, Trodden M. Phys. Rev., 2003, D67:0435096. Davoudiasl H, Kitano R, Kribs C et al. Phys. Rev. Lett.,2004, 93: 2013017. Shiromizu T, Koyama K. hep-th/03061088. LI H, LI M, ZHANG X. Phys. Rev., 2004, D70: 0473029. Brans C H, Dicke R H. Phys. Rev., 1961, 124: 92510. Brans C H. Phys. Rev., 1962, 125: 219411. Brans C H. gr-qc/970506912. Yoshimura M. Phys. Rev. Lett., 1991, 66: 155913. McDonald J. Phys. Rev., 1991, D44: 2314; McDonald J.Phys. Rev., 1991, D44: 2325; McDonald J. Erratum-ibid.,1992, D45: 1433; McDonald J. Phys. Rev., 1993, D48:246214. Sakai N, Yokoyama J, Maeda K. Phys. Rev., 1999, D59:10350415. Carroll S M, Duvvuri V, Mark Trodden et al. Phys. Rev.,2004, D70: 04352816. Perrotta F, Baccigalupi C. Nucl. Phys. Proc. Suppl., 2003,124: 72; Perrotta F, Baccigalupi C. Phys. Rev., 2002,D65: 123505; Perrotta F, Baccigalupi C, Matarrese S.Phys. Rev., 2000, D61: 02350717. Chiba T. Phys. Rev., 2001, D64: 103503; Chiba T. Phys.Lett., 2003, B575: 1—318. Sen A A, Sen S, Sethi S. Phys. Rev., 2001, D63: 107501;Sen S, Sen A A. Phys. Rev., 2001, D63: 12400619. Mak M K, Harko T. Int. J. Mod. Phys., 2003, D12: 92520. Felice A D, Nasri S, Mark Trodden. Phys. Rev., 2003, D67:04350921. Kim H. Phys. Lett., to be published22. Will C M. Theory and Experiment in GravitationalPhysics. Cambridge: Cambridge University Press, 199323. Gaztanaga E, Lobo J A. Astrophys. J., 2001, 548: 47—5924. CHEN Xue-Lei, Kamionkowski M. Phys. Rev., 1999, D60:10403625. Morganstern R E. Phys. Rev., 1971, D4: 27826. Morganstern R E. Phys. Rev., 1971, D4: 28227. Morganstern R E. Phys. Rev., 1971, D4: 94628. Bertolami O, Martins P J. Phys. Rev., 2000, D61: 064007;gr-qc/991005629. Manton N S. Phys. Rev., 1983, D28: 2019; KlinkhamerF R, Manton N S. Phys. Rev., 1984, D30: 2212; KuzminV A, Rubakov V A, Shaposhnikov M.E. Phys. Lett., 1985,B155: 3630. Fukugida M, Yanagida T. Phys. Lett., 1986, B174: 4531. Langacker P, Peccei R D, Yanagida T. Mod. Phys. Lett.,1986, A1: 541; Luty M A. Phys. Rev., 1992, D45: 455;Mohapatra R N, ZHANG X. Phys. Rev., 1992, D46: 533132. Sarkar U. hep-ph/9809209; Buchmuller W. hep-ph/010110233. Spergel D N et al. Astrophys. J. Sippl., 2003, 148: 134. Tegmark M et al. astro-ph/031072335. FujiiM, Hamaguchi K, Yanagida T. Phys. Rev., 2002, D65:115012; Ellis J, Raidal M, Yanagida T. Phys. Lett., 2002,B546: 228; Rodejohann W. Phys. Lett., 2002, B542: 100;BuchmullerW, Bari P Di, Plumacher M. Nucl. Phys., 2002,B643: 367; Branco G, Felipe R, Joaquim F et al. Nucl.Phys., 2002, B640: 20236. Allen S W, Schmidt R W, Bridle S L. Mon. Not. Roy. As-tron. Soc., 2003, 346: 593, astro-ph/030638637. Heckel B. in: Proceedings of CPT01, www.npl.washington.edu/eotwash/publications/cpt01.pdf; Andrianov A, Giac-coni P, Soldati R. astro-ph/011135038. Colladay D, Kostelecky V A. Phys. Rev., 1997, D55: 6760;Phys. Rev., 1998, D58: 11600239. Mocioiu I, Pospelov M. Phys. Lett., 2002, B534: 11440. Williams J G, Newhall X X, Dickey J O. Phys. Rev., 1996,D53: 673041. Dickey J O, Bender P L, Faller J E et al. Science, NewSeries, 1994, 265(5171): 48242. Felice A D, Mark Trodden. hep-ph/0412020

  • Access

    加载中

Get Citation
CHEN Chi-Yi, SHEN You-Gen and FENG Bo. Spontaneous Leptogenesis in Brans-Dicke Cosmology[J]. Chinese Physics C, 2005, 29(11): 1033-1040.
CHEN Chi-Yi, SHEN You-Gen and FENG Bo. Spontaneous Leptogenesis in Brans-Dicke Cosmology[J]. Chinese Physics C, 2005, 29(11): 1033-1040. shu
Milestone
Received: 2005-03-16
Revised: 1900-01-01
Article Metric

Article Views(3183)
PDF Downloads(586)
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:

Spontaneous Leptogenesis in Brans-Dicke Cosmology

    Corresponding author: CHEN Chi-Yi,
  • Shanghai Astronomical Observatory, CAS, Shanghai 200030, China2 Graduate School of Chinese Academy of Sciences, Beijing 100049, China3 National Astronomical Observatories, CAS, Beijing 100012, China4 Institute of High Energy Physics, CAS, Beijing 100049, China5 Institute of Theoretical Physics, CAS, Beijing 100080, China6 Hangzhou Teachers College, Hangzhou 310018, China
  • Received Date: 2005-03-16
  • Accepted Date: 1900-01-01
  • Available Online: 2005-11-05

Abstract: The role of the auxiliary scalar field φ of BD theory in baryon number asymmetry is discussed in this paper. We consider a derivative coupling of this gravitational scalar field to the baryon current JμB or the current of the baryon number minus lepton number JJμB-L based on a series of works of R.Morganstern about the Brans-Dicke cosmology. We find that the spontaneous baryogenesis by this coupling is able to yield sufficient baryon asymmetry nB/s～10-10 provided the time of the grand unification is a little bit earlier. In addition,Davoudiasl et al have recently introduced a new type of interaction between the Ricci scalar R and the bayon current Jμ, \partial_{\upmu}R Jμ and also proposed a mechanism for baryogenesis, the gravitational baryogenesis. However, the Einstein equation tells us that R=0 in the radiation-dominated epoch of the standard FRW cosmology. In this paper we reconsider the feasibility of having gravitational baryongenesis with such a form of interaction in radiation-filled BD cosmology. We show that R does not vanish in this case and the required baryon number asymmetry can also be achieved.

    HTML

Reference (1)

目录

Link
IOPScience
SCOAP3
arXiv
Chinese Physical Society
Journal information
Introduction
Editorial Board
Others
Subscribe
Contact us
QQ: 1307685413
Tel: +86-010-88235947
Fax: +86-010-88233126
E-mail: cpc@ihep.ac.cn

  • CPC Website

  • IOP Website

  • CPC WeChat

Copyright © Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, China 京ICP备05002789号-1

Supported by: Beijing Renhe Information Technology Co. Ltd  E-mail: info@rhhz.net

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return