X NExT PhD Workshop

Session

Student Session

29 Mar 2021, 16:35

Zoom

Conveners

Student Session: Talks (1). Chair: Nourhan Hendawy, with Stefano Moretti.

• There are no conveners in this block

Student Session: Talks (2). Chair: Saeed Vahedikamal, with Andrea Banfi.

• There are no conveners in this block

Student Session: Virtual poster session

• Stefano Moretti (Science and Technology Facilities Council STFC (GB))
• Stephen West (Royal Holloway, University of London)
• Jacob Thomas Linacre (Science and Technology Facilities Council STFC (GB))

3. Charting the Fifth Force Landscape

Hannah Banks (University of Cambridge)

29/03/2021, 16:35

In recent years particle physics research has undergone somewhat of a phase transition, looking increasingly towards hidden sectors and the feebly interacting frontier. In this talk I will introduce a new approach to parameterising dark sector forces, underpinned by the Källén-Lehman representation, in which the effects of any general scalar fifth force are captured by a single...

4. Quantum Amplitudes and Classical Gravity

Matteo Sergola (University of edinburgh)

29/03/2021, 16:41

I will describe how quantum scattering amplitudes can be employed to compute classical observables in gravity, especially in the context of gravitational wave Physics.

5. Do we really need to fix the gauge?

Vlad Mandric (University of Southampton)

29/03/2021, 16:47

6. Leading Hadronisation Corrections

Mr Ryan Wood (University of Sussex)

29/03/2021, 16:53

I will discuss my work with Andrea Banfi and Basem El-Menoufi on a new method to compute leading hadronisation corrections to two-jet event shapes in e+e- annihilation.

15. Twisted Boundary Conditions in Lattice QCD

Alessandro Barone (University of Southampton)

29/03/2021, 16:59

7. Exploring Multilepton Signatures From Dark Matter at the LHC

Arran Charles Freegard (Queen Mary University of London (GB))

29/03/2021, 17:05

While overwhelming cosmological evidences point to the existence of Dark Matter (DM), only its gravitational interaction has been experimentally confirmed. Limitations on the most general mono-X DM signature at colliders motivate searches beyond this. This could manifest in the form of a weak multiplet/doublet DM via weak interactions giving multilepton plus missing energy final states that...

8. Using Machine Learning to find Dark Matter

Joe Davies (University of London (GB))

29/03/2021, 17:11

Dark Matter has been a significantly difficult problem to solve for decades. With possible production channels being very similar to common background processes, trying to isolate signals has become like looking for a needle in a cosmic haystack. Machine Learning advancements have caused an acceleration in physics computing and allowed us to use sophisticated techniques to more accurately and...

9. Model Building with Reinforcement Learning

Thomas Harvey (Oxford University)

29/03/2021, 17:17

Machine learning has become an incredibly useful tool for studying string/particle theory. For the most part this research has used Supervised learning, where large data sets from physics and related mathematics have been used to train neural networks. Instead, this talk will address if techniques of reinforcement learning can be used to train a neural network to construct particle physics...

11. New Technique for Space Debris Identification and Tracking

Saeed Vahedikamal (UCL (University College London ))

29/03/2021, 17:23

Over 6 decades of human activities in space resulted in thousands of tonnes of objects (with various sizes, shapes and materials) in Earth's orbit. There is a big challenge to detect, identify and track objects of smaller sizes (less than 10 cm) particularly in higher altitudes. This research is focusing on the possibility of using MKIDs (Microwave Kinetic Inductance Detectors) for developing...

20. Use of Kappa Formulation to Achieve a 2HDM Model Type Independent Scanner

Ciara Byers (University of Southampton)

31/03/2021, 16:00

In our project we wish to make use of the kappa formulation in order to avoid choosing specific 2HDMs in our searches. In doing so we can maximise the value of our search by considering points with the highest cross-sections w.r.t. to Kappas instead of w.r.t. coupling strengths taken from QFT rules (which are of course restricted to individual models by definition). I give a brief overview of...

13. Taking Top-EFT For a Spin

Ethan Lewis Simpson (University of Glasgow (GB))

31/03/2021, 16:06

14. High precision QCD amplitudes

Piotr Bargiela (Univeristy of Oxford)

31/03/2021, 16:12

Due to increasing precision of measurements at the Large Hadron Collider, high precision theoretical calculations are necessary for validation of the Standard Model of Elementary Particles predictions. In recent years, photon production processes have played an important role, especially in relation to Higgs boson phenomenology. In my research, I am using broad range of state-of-the-art...

16. HAL-QCD Approach to Interquark Potentials

Thomas Spriggs

31/03/2021, 16:18

In this short talk I will be briefly talking through an approach used in lattice QCD to calculate the interquark potential: the potential felt between quarks in a bound state due to the presence of the other quarks in that state. I will introduce the concept by recreating an early piece of work in the area and then, time permitting, explain how I am extending this early work to reduce errors...

17. Search for tZq production in association with a Z boson in the dilepton final state

Kathryn Wendy Coldham (Brunel University (GB))

31/03/2021, 16:24

First observed by the CDF and D0 collaborations at Fermilab in 1995, the top quark is the heaviest of the known elementary particles and has a mass of around 172.6 GeV. Its heavy mass leads to it having a short lifetime of 10-24 s, which is less than the time scale required for hadronization. Therefore, unlike other quarks, the top quark can pass on spin information to its decay particles. Its...

18. Normalising Flows as Trivialising Maps for Lattice $\phi^4$ Theory

Joe Marsh Rossney (University of Edinburgh)

31/03/2021, 16:30

19. Plasma kinetics for plasma medicine applications in cancer treatment

Nourhan Hendawy (Ulster University)

31/03/2021, 16:36

The possibility of generating low temperature non-thermal equilibrium atmospheric pressure plasmas in contact with liquid has led to a large number of biological and medical applications such as cancer treatment through plasma-induced apoptosis, dermatological applications, and wound healing. The major plasma reactive species mainly rely on the plasma temperature. Gas temperature can vary...

12. Lepton Flavour Non-Universality in U(1) Extended MSSMs

Dr Yasar Hicyilmaz (University of Southampton)

31/03/2021, 16:42

We studied phenomenological implications of numerous Lepton Flavour Non-Universal U(1)′ sub-models in the U(1) extended Supersysmmetric Model (UMSSM) In doing this, we started with anomaly cancellation criteria to generate a number of solutions in which the extra U(1) charges of the particles are treated as free parameters. We imposed existing bounds coming from colliders and astrophysical...

26. A new technique for the reconstruction of the interaction vertices inside the CMS detector at HL-LHC.

Giovanna Salvi (Science and Technology Facilities Council STFC (GB))

01/04/2021, 13:00

25. Adaptive Multi Vertex Fitter for Secondary Vertexing

Neza Ribaric (Lancaster University (GB))

01/04/2021, 13:00

22. Jet Clustering Techniques for New Higgs Boson Searches in Hadronic Final State

Shubhani Jain (University of Southampton)

01/04/2021, 13:00

21. MultiScale Modelling of Vacancy Diffusion Mechanisms Leading to Void Formation

Vasileios Fotopoulos (University College London (UCL))

01/04/2021, 13:00

23. Possibility of a new level of space debris identification and tracking by Microwave Kinetic Inductance Detectors (MKIDs)

Saeed Vahedikamal (UCL (University College London ))

01/04/2021, 13:00

24. Sneutrino DM signals as probe of neutrino seesaw dynamics

YI LIU (university of Southampton)

01/04/2021, 13:00

10. Heavy light inflaton and dark matter production

Abigail Keats (University of Manchester)

I will discuss a minimal extension of the Standard Model by a scalar with quartic interaction serving as an inflaton. For the model where scale symmetry is broken only in the inflaton sector, the mass of the inflaton is constrained to be relatively low. Analysis of inflaton masses mχ ≳ 250 GeV provides a window with viable inflationary properties that evade direct observational constraints due...