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J. J. Back

Researcher at University of Warwick

Publications -  795
Citations -  29982

J. J. Back is an academic researcher from University of Warwick. The author has contributed to research in topics: Branching fraction & CP violation. The author has an hindex of 82, co-authored 795 publications receiving 26800 citations. Previous affiliations of J. J. Back include Queen Mary University of London.

Papers
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Observation of a broad structure in the pi(+)pi(-)J/psi mass spectrum around 4.26 GeV/c(2)

Bernard Aubert, +634 more
TL;DR: Fits to the mass spectrum indicate that a broad resonance with a mass of about 4.26 GeV/c2 is required to describe the observed structure, and the presence of additional narrow resonances cannot be excluded.
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Observation of the rare B-s(0)->mu(+)mu(-) decay from the combined analysis of CMS and LHCb data

Vardan Khachatryan, +2805 more
- 04 Jun 2015 - 
TL;DR: In this paper, the branching fractions of the B meson (B-s(0)) and the B-0 meson decaying into two oppositely charged muons (mu(+) and mu(-)) were observed.
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Search for Lepton-Universality Violation in B + →K + ℓ+ ℓ- Decays

Roel Aaij, +861 more
TL;DR: This is the most precise measurement of R_{K} to date and is compatible with the standard model at the level of 2.5 standard deviations.
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Angular analysis of the $B^{0}\rightarrow K^{*0}\mu^{+}\mu^{-}$ decay using $3\,\mbox{fb}^{-1}$ of integrated luminosity

Roel Aaij, +731 more
TL;DR: In this paper, an angular analysis of the LHCb collision data is presented, where the angular observables and their correlations are reported in bins of $q^2, the invariant mass squared of the dimuon system.
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First Evidence for the Decay B-s(0) -> mu(+) mu(-)

Roel Aaij, +618 more
TL;DR: In this paper, a search for the rare decays Bs->mu+mu- and B0->Mu+Mu- is performed using data collected in 2011 and 2012 with the LHCb experiment at the Large Hadron Collider.