Graduate And Professional

YPPDO Seminar: Ellie Hadjiyska Schmelzer, Collins Aerospace, "Elliptical Career Paths"

Many of us expect to follow linear career paths. However, sometimes we cannot predict our growth and change, leading us to reevaluate our career trajectory. Course corrections can alter our linear paths and create parallel, perpendicular, or even elliptical career paths. In this talk, I will discuss the surprising twists and turns one may encounter when navigating their professional growth.

NPA Seminar: Jennet Dickinson, Fermilab, "Boosted Higgs boson production via vector boson fusion with the CMS experiment"

A first search is conducted for boosted Higgs boson production via vector boson fusion in the H(bb) decay channel at the LHC proton-proton collider. The result is based on the full 13 TeV dataset collected by the CMS detector in 2016, 2017, and 2018, corresponding to an integrated luminosity of 138 fb^{-1}. Jet kinematics are used to define independent regions targeting vector boson fusion (VBF) and gluon fusion (ggF) production of Higgs bosons with p_T>450 GeV.

WIDG Seminar: Sophia Hollick, Yale, "COSINE-100 and ANAIS-112 Search for WIMPs"

This prospectus carries the goal of testing the DAMA/LIBRA (DL) dark matter claim by combining two collaborations who have set forth to reproduce the DL annual modulation signature, COSINE-100 and ANAIS-112. COSINE-100’s recent modulation results support both the no modulation case and the DL modulation case. ANAIS- 112 excludes DL to 2σ. A combination of the two experiments would allow for a sensitive search from opposite sides of the world, notably, Spain and Korea.

WIDG Seminar: Mark Gonzalez, Yale, "Detectorology and its Phenomenological Applications"

Well-defined operators which are capable of describing measurements made at future null infinity in collider experiments are naturally of phenomenological interest, but they are also of great formal interest. Here we discuss the properties of these so called asymptotic detector operators, including both their formal construction in terms of light-ray operators in a conformal field theory, as well as their utility in jet substructure phenomenology.

Dissertation Defense: Tong Liu, Yale University, "Inclusive Hadron Yield Analysis in Small and Mid-sized Collision Systems at sqrt(s_NN)=200 GeV at STAR"

At extremely high temperature and energy density, the quarks and gluons form a novel state of matter called the Quark-Gluon Plasma (QGP). The QGP has been widely studied via relativistic heavy ion collisions in large collision systems like Au+Au and Pb+Pb. However, whether the QGP exists in small systems like p+Au, and the dependence of QGP production on the collision system size are still open questions. One way to study the QGP properties is by using proxies of high energy partons, which are created in the initial stages of the collisions, and fragment into hadrons in the final state.

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