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DTSTAMP:20251213T125314Z
UID:2F4278EB-66BD-4323-9B97-B08EC31897DE
DTSTART;TZID=Europe/Prague:20250819T140000
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DESCRIPTION:The standard model of particle physics is a good approximation 
 for lower energy scales. In the early hot universe\, however\, it is assum
 ed that there was a so-called grand unified theory\, which unifies the thr
 ee fundamental forces of particle physics: the electromagnetic\, the weak\
 , and the strong force. However\, all attempts to unify these three forces
  lead to a possible overabundance of 't Hooft-Polyakov magnetic monopoles.
 \n\nBut why magnetic monopoles haven't been observed so far? In my present
 ation\, I will discuss the so-called magnetic monopole problem and present
  two solutions for this in more detail. First\, I will present our numeric
 al study on monopole interactions with domain walls. We observe that the c
 ollision leads to the erasure of the magnetic monopoles and thus may solve
  the monopole problem (Dvali\, Liu\, and Vachaspati 1997).\n\nSecond\, I w
 ill present monopoles connected by cosmic strings (Langacker\, Pi 1980). T
 he strings pull the monopoles together until they collide and annihilate. 
 Here\, I will particularly focus on the “slingshot effect” that descri
 bes monopoles traversing the boundary between Coulomb and confining phases
 . This passage causes the gauge field to be confined in a cosmic string co
 nnected to the domain wall separating the two phases.\n\nThese two phenome
 na\, relevant in the early universe\, could leave observable imprints such
  as gravitational radiation.\n\nMaximilian Bachmaier\n\nIEAP\, CTU in Prag
 ue\, Husova 240/5\, Prague\, Czech Republic\, Czech Republic
LOCATION:IEAP\, CTU in Prague\, Husova 240/5\, Prague\, Czech Republic\, Cz
 ech Republic
ORGANIZER:andre.sopczak@cern.ch
SEQUENCE:4
SUMMARY:The Fate of Magnetic Monopoles in the Early Universe
URL;VALUE=URI:https://events.vtools.ieee.org/m/522189
X-ALT-DESC:Description: <br /><p>The standard model of particle physics is 
 a good approximation for lower energy scales. In the early hot universe\, 
 however\, it is assumed that there was a so-called grand unified theory\, 
 which unifies the three fundamental forces of particle physics: the electr
 omagnetic\, the weak\, and the strong force. However\, all attempts to uni
 fy these three forces lead to a possible overabundance of 't Hooft-Polyako
 v magnetic monopoles.<br><br>But why magnetic monopoles haven't been obser
 ved so far? In my presentation\, I will discuss the so-called magnetic mon
 opole problem and present two solutions for this in more detail. First\, I
  will present our numerical study on monopole interactions with domain wal
 ls. We observe that the collision leads to the erasure of the magnetic mon
 opoles and thus may solve the monopole problem (Dvali\, Liu\, and Vachaspa
 ti 1997).<br><br>Second\, I will present monopoles connected by cosmic str
 ings (Langacker\, Pi 1980). The strings pull the monopoles together until 
 they collide and annihilate. Here\, I will particularly focus on the &ldqu
 o\;slingshot effect&rdquo\; that describes monopoles traversing the bounda
 ry between Coulomb and confining phases. This passage causes the gauge fie
 ld to be confined in a cosmic string connected to the domain wall separati
 ng the two phases.<br><br>These two phenomena\, relevant in the early univ
 erse\, could leave observable imprints such as gravitational radiation.</p
 >\n<p>Maximilian Bachmaier</p>
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