Summer students' reports 2

by Arnau Beltran (UAB Student), Daniel Lozano (UAB Student), Guillem Eliasson (UAB Student), Guillermo Baltà (UAB Student)

Wednesday 28 Sep 2022, 13:00 → 14:00 Europe/Madrid

IFAE Seminar Room (IFAE)

The IFAE Summer Fellowship Programme offers undergraduate students the possibility of spending the summer as a physics researcher. The program has been running for 7 years now.

In this seminar, 3 students will report on their work done in this one-month stay.

1.  On the possibility of superluminal velocities using exotic material

Arnau Beltran (UAB Student) & Guillermo Baltà (UAB student)

In this project, we will explore if the theoretical existence of new exotic materials with negative total mass, such as some WH systems studied in recent papers, could, in principle, give way to the existence of stable Alcubierre warp bubbles. Also, if such Alcubierre drives could endow a ship with superluminal speeds.

 

2. LGAD time resolution with TCT

Guillem Eliasson, UAB Student

LGAD (Low Gain Avalanche Detectors) are a type of semiconducting sensors that emit a pulse of current when photons pass through them. This is very useful when it comes to track the path of particles - in hadron colliders for instance: after the experiment we have data regarding the different locations of the particle and also about when the particle was at those points of space.

It is crucial to know the error LGADs can make when performing the measurements in order to know the limitations of the data collected and to have a more reliable source of information. My work at IFAE was oriented to determine the time resolution of LGAD sensors, and in my presentation I will explain the set-up I used in detail and the results I obtained.

 

3. Clustering analysis of Damped Lyman alpha Absorbers (DLAs)

Daniel Lozano, (UAB Student)

I present a measurement of the DLA mean bias from the cross-correlation of DLA and the Lyman-alpha forest with the eBOSS sixteenth data release DR16 from SDSS-IV.