B → D (∗) τν excesses in ALRSM constrained from B, D decays and D0 − D0 mixing

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dc.contributor.author Hati, Chandan
dc.contributor.author Kumar, Girish
dc.contributor.author Mahajan, Namit
dc.date.accessioned 2016-02-11T12:13:50Z
dc.date.available 2016-02-11T12:13:50Z
dc.date.issued 2016-01
dc.identifier.citation Hati, Chandan; Kumar, Girish and Mahajan, Namit, “B → D (∗) τν excesses in ALRSM constrained from B, D decays and D0 − D0 mixing”, Journal of High Energy Physics, DOI: 10.1007/JHEP01(2016)117, no. 1, pp. 1-20, Jan. 2016.
dc.identifier.issn 1029-8479
dc.identifier.uri http://dx.doi.org/10.1007/JHEP01%282016%29117
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/2076
dc.description.abstract Recent experimental results from the LHCb, BaBar and Belle collaborations on the semitauonic decays of B meson, B¯¯¯¯→D(∗)τν¯¯¯, showing a significant deviation from the Standard Model (SM), hint towards a new physics scenario beyond the SM. In this work, we show that these enhanced decay rates can be explained within the framework of E 6 motivated Alternative Left-Right Symmetric Model (ALRSM), which has been successful in explaining the recent CMS excesses and has the feature of accommodating high scale leptogenesis. The R-parity conserving couplings in ALRSM can contribute universally to both B¯¯¯¯→Dτν¯¯¯ and B¯¯¯¯→D∗τν¯¯¯ via the exchange of scalar leptoquarks. We study the leptonic decays D+s→τ+ν¯¯¯, B+→τ+ν¯¯¯, D+→τ+ν¯¯¯ and D0−D¯¯¯¯0 mixing to constrain the couplings involved in explaining the enhanced B decay rates and we find that ALRSM can explain the current experimental data on R(D(∗)) quite well while satisfying these en_US
dc.description.statementofresponsibility by Chandan Hati, Girish Kumar and Namit Mahajan
dc.format.extent vol no. 1, pp. 1-20
dc.language.iso en_US en_US
dc.publisher Springer Berlin Heidelberg en_US
dc.subject Rare Decays en_US
dc.subject Beyond Standard Model en_US
dc.subject B-Physics en_US
dc.title B → D (∗) τν excesses in ALRSM constrained from B, D decays and D0 − D0 mixing en_US
dc.type Article en_US
dc.relation.journal Journal of High Energy Physics

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