2nd Annual Niels Bohr Institute MSc. Student Symposium

Session

Poster session: Enjoy the posters!!!

31 Mar 2023, 15:40

Hall (H.C. Ørsted Institute)

Description

Enjoy the posters!!

12. A Forward Hadronic Calorimeter for ALICE at the LHC

31/03/2023, 15:40

Poster

Studying the gluon density in nucleons and nuclei require measurements at low-x. The Forward Calorimeter (FoCal) upgrade for ALICE will provide just such measurements. FoCal comprises two components, an Electromagnetic calorimeter (FoCal-E) and a Hadronic Calorimeter (FoCal-H). This poster will present results from the first prototype that informed the design of the second prototype.
In...

8. Alternative to Cosmological Constant with new dark matter force

31/03/2023, 15:40

Poster

Proposing a new theory based on hierarchical structure formation of dark matter adding a new velocity dependent force which replaces the cosmological constant

17. Complex organic chemistry toward young stars

31/03/2023, 15:40

Poster

The origin of life remains a fundamental question in many scientific fields. From an astrochemical perspective a key element to understanding this question is through the formation and evolution of complex organic molecules (COMs) as they are thought to constitute the precursor for the building blocks of life. Methanol (CH$_3$OH) is one of many COMs detected in the interstellar medium and is...

2. Detailed simulation of neutron scattering from phonons in highly oriented pyrolytic graphite

31/03/2023, 15:40

Poster

Pyrolytic graphite (PG) is often used in neutron instruments, for example much PG is used in the multiplexing indirect Time-of-flight (ToF) spectrometer BIFROST at ESS. To simulate possible background effects of PG, experiments and modeling of the experimental data by the simulation package McStas have been done.

In this poster I will present the progress of modeling of the phonon in PG...

7. Dust circulation in self-similar protoplanetary discs

31/03/2023, 15:40

Poster

Planetary formation presents many unanswered questions which are very difficult to answer, observationally since they are deeply embedded, theoretically due to the very nonlinear dynamics and computationally due to the hundreds of thousands of orbits over which the formation occurs. Current models of the early solar system have difficulties explaining the existence of dust reservoirs observed...

16. Greenland ice sheet surface water vapour fluxes from automatic weather station records

31/03/2023, 15:40

Poster

The mass balance of the Greenland ice sheet is influenced by surface water vapour fluxes. Sublimation and evaporation remove mass from the surface, while condensation and frost deposition adds mass. The energy spent on sublimation and evaporation cools the surface and thus reduces melting, whereas frost deposition and condensation will have the opposite effect. Box and Steffen (2001) estimated...

19. On-chip Frequency Conversion with a GaAs platform

31/03/2023, 15:40

Poster

Frequency conversion is a well studied effect of nonlinear optics, in which the nonlinear dielectric polarization of a material describes the response to an incident optical field. The result is the generation of new secondary fields of different frequencies, enabling a variety of applications. For instance, in the field of quantum communication it is used to produce entangled photon pairs...

15. Probe a small droplet of Quark-Gluon Plasma with flow-vector fluctuations at the LHC

31/03/2023, 15:40

Poster

In the early universe, a special state of matter called quark-gluon plasma (QGP) existed. It consisted of the fundamental matter particles (quarks) and the force carriers of the strong interaction (gluons). By colliding heavy-ions at ultrarelativistic energies using the Large Hadron Collider (LHC) at CERN, we can recreate the early universe in a little "Little Bang" and study it under...

11. Probing nuclear structure in heavy-ion collisions with cumulants of transverse momentum fluctuations

31/03/2023, 15:40

Poster

The structure of atomic nuclei can be described by a multipole expansion of the parton distribution function. Most nuclies generally have intrinsic deformation, where the quadrupole moment carries the most significant contribution. The shape of a quadrupole deformed nuclies is described by the deformation strength $\beta_2$, and an axial symmetry component $\gamma$. In ultra-relativistic...

20. Reading out a hadronic calorimeter: testning a readout system for the ALICE FoCal-H

31/03/2023, 15:40

Poster

One of the major upgrades to ALICE for LHC Run 4 is the Forward Calorimeter (FoCal). This calorimeter comprises two sections, an Electromagnetic Calorimeter (FoCal-E) and a Hadronic Calorimeter (FoCal-H). Among the physics goals for FoCal is the study of physics at low-x, a regime in which one expects to see signals related to the gluon density in the initial nucleons which form the initial...

14. Simulating the vibrational dynamics of molecules using a quantum dot induced non-linearity

31/03/2023, 15:40

Poster

We aim to develop quantum algorithms that can effectively simulate molecular vibrational dynamics. While simulating quantum dynamics using classical algorithms is trivial for systems approximated as harmonic oscillators, challenges arise when dealing with molecules containing anharmonicity, such as H2O. To overcome this challenge, we propose mapping molecular vibrations to photons and...

4. Simulations of background scattering from a 15 T magnet

31/03/2023, 15:40

Poster

Neutron scattering allows for quite complicated sample environments with control over the sample conditions, such as controlled temperature, as well as the presence of strong magnetic fields.
The presence of magnets in scattering experiments necessitates a significant amount of materials in the structure. The coils of the magnets, which are not in the direct beam, add more material into the...

9. Spacetime Algebra as a tool to study the Milky Way's plane of satellites

31/03/2023, 15:40

Poster

A new gravitational force term derived from Spacetime Algebra is numerically implemented in order to explain the Milky Way's plane of dwarf galaxies.