Conveners
HFCKM / PPHI: Parallel 1 — Rare Decays
- Wolfgang Altmannshofer (University of Cincinnati)
HFCKM / PPHI: Parallel 2 — LFU/CLF Violation
- Aida El-Khadra (University of Illinois at Urbana-Champaign)
Dr
Gerco Onderwater
(University of Groningen)
29/05/2018, 14:00
HFCKM
Parallel
The existence of three generations of fundamental fermions gives rise to a wealth of phenomena, such as CP violation and flavour oscillations. Because of various conservation laws, including baryon number, lepton number and charged lepton flavour conservation, many otherwise possible reactions, asymmetries, and decays are prohibited or strongly suppressed. The search for rare decays helps to...
Dr
Yuzhi Liu
(Indiana University Bloomington)
29/05/2018, 14:30
HFCKM
Parallel
A review of recent lattice QCD calculations of the exclusive rare $B$ decay form factors is presented. Special focus is given to $B\to \pi\ell\ell$ and $B\to K\ell\ell$ decays. These flavor-changing-neutral-current processes provide theoretically clean windows into physics beyond the Standard Model.
Dr
Cristina Biino
(INFN Torino)
29/05/2018, 15:00
PPHI
Parallel
In 2003–2004 the NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles. A new upper limit on the rate of the lepton number violating decay
$K^\pm \to \pi^\mp\mu^\pm\mu^\pm$ is reported: $B(K^\pm \to \pi^\mp\mu^\pm\mu^\pm) < 8.6\times10^{−11}$ at 90% CL. Searches for two-body resonances $X$ in $K^\pm \to \pi\mu\mu$ decays...
Dr
Bob Velghe
(TRIUMF)
29/05/2018, 15:20
PPHI
Parallel
The decay $K^+\to \pi^+ \nu\nu$, with a very precisely predicted branching ratio of less than $10^{-10}$, is one of the best candidates to reveal indirect effects of new physics at the highest mass scales. The NA62 experiment at the CERN SPS is designed to measure the branching ratio of the $K^+\to \pi^+ \nu\nu$ with a decay-in-flight technique, novel for this channel. NA62 took data in 2016,...
Dr
Terence Libeiro
(UCI)
29/05/2018, 16:10
PPHI
Parallel
The MEG experiment at the Paul Scherrer Institut searches for charged lepton flavor violation in the rare muon decay $\mu^+ \to e^+ + \gamma$. The first run during the 2009–13 period excludes the decay process at the sensitivity limit of $4.2\times 10^{-13}$ at 90% confidence level. An upgrade of the experiment, MEGII, is underway with the aim to improve the sensitivity by an order of...
Dr
Tomonari Miyashita
(Caltech)
29/05/2018, 16:40
PPHI
Parallel
The Mu2e experiment at Fermilab aims to measure the neutrinoless conversion of a negative muon into an electron, a reaction violating charged lepton flavor conservation. This process is extremely suppressed in the Standard Model, and an observation would constitute an unambiguous sign of new physics beyond the Standard Model. The conversion signal is characterized by a monochromatic electron...
Prof.
Dinko Pocanic
(University of Virginia)
29/05/2018, 17:10
PPHI
Parallel
$V$–$A$ helicity suppression of the $\pi^+\to e^+ \nu (\gamma)$ decay (known as "$\pi_{e2}$") amplifies the sensitivity to pseudoscalar terms by a factor of $\sim$8000, enabling indirect searches for non-SM pseudoscalar terms, as well as scalar and tensor terms, through loop effects, with good sensitivity to interesting regions of the beyond-SM parameter space (e.g., supersymmetric...
Richard Mischke
(TRIUMF)
29/05/2018, 17:30
PPHI
Parallel
Data from the PIENU experiment at TRIUMF have been examined for evidence of a heavy neutrino coupled to the positron in the decay $\pi \to e \nu$. Limits on the mixing of neutrinos in the mass range 60–135 MeV/$c^2$ with the electron neutrino, which are up to an order of magnitude improvement over previous results, will be presented.
The PIENU experiment was also designed to make a...
Ryotaro Watanabe
(University of Montreal)
29/05/2018, 17:50
HFCKM
Parallel
I will present an overview of theoretical developments on RD and RD*, in which discrepancies between experimental data and the Standard Model predictions have been reported, referred to as the B anomaly. Then I will summarize New Physics explanations for the B anomaly.
Prof.
Alakabha datta
(University of Mississippi)
29/05/2018, 18:10
HFCKM
Parallel
Recent measurements in $B$ decays may indicate lepton universality violation. I will discuss how such lepton universality new physics might arise and how in many cases this new physics also leads to lepton flavor violation. I will consider some interesting processes where lepton universality and lepton flavor violations may be observed.
