Assessing lepton-flavour non-universality from B → K*ll angular analyses

被引：88

作者：

Capdevila, Bernat ^{[1
,2
]}

Descotes-Genon, Sebastien ^{[3
]}

Matias, Joaquim ^{[1
,2
]}

Virto, Javier ^{[4
]}

机构：

[1] Univ Autonoma Barcelona, E-08193 Barcelona, Spain

[2] Barcelona Inst Sci & Technol, IFAE, Campus UAB, Barcelona 08193, Spain

[3] Univ Paris Saclay, Univ Paris Sud, CNRS, Lab Phys Theor UMR8627, F-91405 Orsay, France

[4] Univ Siegen, Naturwissensch Tech Fak, Theoret Phys 1, D-57068 Siegen, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 10期

关键词：

Beyond Standard Model; Heavy Quark Physics; R-K; ISOSPIN BREAKING; PHYSICS; RD(ASTERISK); EXPLANATION;

D O I：

10.1007/JHEP10(2016)075

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：

The B -> K*mu mu decay exhibits deviations with respect to Standard Model expectations and the measurement of the ratio RK hints at a violation of lepton-flavour universality in B -> Kll transitions. Both effects can be understood in model-independent fits as a short-distance contribution to the Wilson coefficient C-9 mu, with some room for similar contributions in other Wilson coefficients for b -> s mu mu transitions. We discuss how a full angular analysis of B -> K*ee and its comparison with B -> K*mu mu could improve our understanding of these anomalies and help confirming their interpretation in terms of short-distance New Physics. We discuss several observables of interest in this context and provide predictions for them within the Standard Model as well as within several New Physics benchmark scenarios. We pay special attention to the sensitivity of these observables to hadronic uncertainties from SM contributions with charm loops.

引用

页数：33

共 73 条

[1] Angular analysis of the B0 → K*0 μ+ μ- decay using 3 fb-1 of integrated luminosity [J].

Aaij, R. ;

Beteta, C. Abelian ;

Adeva, B. ;

Adinolfi, M. ;

Affolder, A. ;

Ajaltouni, Z. ;

Akar, S. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Cartelle, P. Alvarez ;

Alves, A. A., Jr. ;

Amato, S. ;

Arnerio, S. ;

Arnhis, Y. ;

An, L. ;

Anderlini, L. ;

Andreassi, G. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

d'Argent, P. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Baesso, C. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Batozskaya, V. ;

Battista, V. ;

Bay, A. ;

Beaucourt, L. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. ;

Bel, L. J. ;

Bellee, V. ;

Belloli, N. .

JOURNAL OF HIGH ENERGY PHYSICS, 2016, (02) :1-79

[2] Angular analysis and differential branching fraction of the decay Bs0 → φμ+μ- [J].

Aaij, R. ;

Adeva, B. ;

Adinolfi, M. ;

Affolder, A. ;

Ajaltouni, Z. ;

Akar, S. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Cartelle, P. Alvarez ;

Alves, A. A., Jr. ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

An, L. ;

Anderlini, L. ;

Anderson, J. ;

Andreassi, G. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Aquines Gutierrez, O. ;

Archilli, F. ;

d'Argent, P. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Baesso, C. ;

Baldini, W. ;

Barlow, R. J. ;

Barsche, C. ;

Barsuk, S. ;

Barter, W. ;

Batozskaya, V. ;

Battista, V. ;

Bay, A. ;

Beaucourt, L. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. ;

Bel, L. J. ;

Bellee, V. ;

Belyaev, I. .

JOURNAL OF HIGH ENERGY PHYSICS, 2015, (09)

[3] Measurement of the Ratio of Branching Fractions B((B)over-bar0 → D*+τ-(ν)over-barτ)/B((B)over-bar0 → D*+μ-(ν)over-barμ) [J].

Aaij, R. ;

Adeva, B. ;

Adinolfi, M. ;

Affolder, A. ;

Ajaltouni, Z. ;

Akar, S. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Cartelle, P. Alvarez ;

Alves, A. A., Jr. ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

An, L. ;

Anderlini, L. ;

Anderson, J. ;

Andreassi, G. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

d'Argent, P. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Baesso, C. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Batozskaya, V. ;

Battista, V. ;

Bay, A. ;

Beaucourt, L. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. ;

Bel, L. J. ;

Bellee, V. ;

Belyaev, I. .

PHYSICAL REVIEW LETTERS, 2015, 115 (11)

[4] Observation of associated production of a Z boson with a D meson in the forward region [J].

Aaij, R. ;

Adeva, B. ;

Adinolfi, M. ;

Affolder, A. ;

Ajaltouni, Z. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Alvarez Cartelle, P. ;

Alves, A. A., Jr. ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

Anderlini, L. ;

Anderson, J. ;

Andreassen, R. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Balagura, V. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Batozskaya, V. ;

Bauer, Th. ;

Bay, A. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. ;

Belogurov, S. ;

Belous, K. ;

Belyaev, I. ;

Ben-Haim, E. ;

Bencivenni, G. ;

Benson, S. ;

Benton, J. .

JOURNAL OF HIGH ENERGY PHYSICS, 2014, (04)

[5] Measurement of Form-Factor-Independent Observables in the Decay B0 → K*0μ+μ- [J].

Aaij, R. ;

Adeva, B. ;

Adinolfi, M. ;

Adrover, C. ;

Affolder, A. ;

Ajaltouni, Z. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Alvarez Cartelle, P. ;

Alves, A. A., Jr. ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

Anderlini, L. ;

Anderson, J. ;

Andreassen, R. ;

Andrews, J. E. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Bachmann, S. ;

Back, J. J. ;

Baesso, C. ;

Balagura, V. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Bauer, Th. ;

Bay, A. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. ;

Belogurov, S. ;

Belous, K. ;

Belyaev, I. ;

Ben-Haim, E. ;

Bencivenni, G. ;

Benson, S. ;

Benton, J. ;

Berezhnoy, A. .

PHYSICAL REVIEW LETTERS, 2013, 111 (19)

[6]

Aaij R, 2013, J HIGH ENERGY PHYS, DOI 10.1007/JHEP07(2013)084

[7]

Abdesselam A., ARXIV160303257

[8]

Abdesselam A., ARXIV160404042

[9] Lepton universality violation with lepton flavor conservation in B-meson decays [J].

Alonso, R. ;

Grinstein, B. ;

Camalich, J. Martin .

JOURNAL OF HIGH ENERGY PHYSICS, 2015, (10)

[10] SU(2) x U(1) Gauge Invariance and the Shape of New Physics in Rare B Decays [J].

Alonso, R. ;

Grinstein, B. ;

Camalich, J. Martin .

PHYSICAL REVIEW LETTERS, 2014, 113 (24)

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