Phenomenology 2014 Symposium

Session

B Physics II & BSM

6 May 2014, 16:30

University of Pittsburgh

Conveners

B Physics II & BSM

• Joachim Brod (TU Munich)

12. Mass and lifetime measurements of heavy flavour hadrons

Adrian Andrew Pritchard (University of Liverpool (GB))

06/05/2014, 16:30

LHCb has performed many world-best mass and lifetime measurements of baryons and mesons containing b and c quarks. I will present a number of the more recent of these measurements and how they can be interpreted, along with how they compare to standard model predictions.

10. Physics with b-baryons at LHCb

James Mccarthy (University of Birmingham (GB))

06/05/2014, 16:45

The amount of b-baryons produced at the LHC is unprecedented. Studies of decays of b-baryons allow searches for non-SM CP asymmetries or rare phenomena. While many measurements have now been published by the LHCb collaboration, the theoretical understanding of these decays is still very limited.

99. Isospin violation in the yield of S-wave heavy meson pairs near threshold

Mr Xin Li (School of Physics and Astronomy, University of Minnesota)

06/05/2014, 17:00

Recent experimental data have revealed existence of a considerable number of peaks near the thresholds for pairs of mesons containing heavy $c$ or $b$ quarks. Such are $Z_b(10610)$, $Z_b(10650)$, $Z_c(3900)$, $Z_c(3885)$, $Z_c(4020)$ and $Z_c(4025)$. The nature of those peaks are not all clear. Some of them result from the strong-interaction dynamics in the $S$-wave of a heavy meson-antimeson...

6. Electroweak penguin decays to leptons at LHCb

Peter Noel Griffith (University of Birmingham (GB))

06/05/2014, 17:15

Rare flavour violating decays of beauty and charm hadrons test the flavour structure of the underlying theory at the level of quantum corrections. They provide information on the couplings and masses of heavy virtual particles appearing as intermediate states. A review of recent results obtained by LHCb on these topics will be presented.

63. A Swarm of Bs

Jared Evans

06/05/2014, 17:30

New physics signals containing five or more $b$-tagged jets, but without missing $E_T$ or leptons, could realistically be sitting within the current 8 TeV LHC data set without receiving meaningful constraints from any of the existing LHC searches at either ATLAS or CMS. In this talk, several examples of simple, motivated models that yield final states containing many $b$-jets, and a specific...

41. Difficult BSM Signatures at the LHC

Matthew Buckley (Fermilab)

06/05/2014, 17:45

The LHC experiments have performed very wide-ranging and exhaustive searches for many new physics scenarios considered theoretically well-motivated in the pre-LHC era. However, gaps remain in the experimental coverage of possible new particles, which should be covered as we move into the Higgs Era. I discuss several improvements to search techniques that will increase our sensitivity to new...

167. Model independent extraction of the proton magnetic radius from electron scattering

Prof. Gil Paz (Wayne State University)

06/05/2014, 18:00

For several years now, we are facing the proton electric radius puzzle, namely, the 5 standard deviation difference between the electric radius as extracted from muonic hydrogen and the electric radius as extracted from regular hydrogen. The origin of the discrepancy is unknown, and could possibly point towards new interactions that do not respect lepton universality. An equally fundamental...

102. New Limits on Light Hidden Sectors from Fixed-Target Experiments

Andrew Spray (CoEPP, University of Melbourne)

06/05/2014, 18:15

New physics can be light if it is hidden, coupling very weakly to the Standard Model. In this work we investigate the discovery prospects of Abelian hidden sectors in lower-energy fixed-target and high-precision experiments. We focus on a minimal supersymmetric realization consisting of an Abelian vector multiplet, coupled to hypercharge by kinetic mixing, and a pair of chiral Higgs...