|![[Search]](https://talks.cam.ac.uk/images/search.gif?1209136071)
|![[A-Z Index]](https://talks.cam.ac.uk/images/az.gif?1209136071)
|![[Contact]](https://talks.cam.ac.uk/images/contact.gif?1209136071)
||![[University of Cambridge]](https://talks.cam.ac.uk/images/identifier2.gif?1209136071){kind=small} |
COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. | ![[Talks.cam]](https://talks.cam.ac.uk/images/talkslogosmall.gif?1209136071) |
University of Cambridge > Talks.cam > HEP phenomenology joint Cavendish-DAMTP seminar > Chiral anomaly and its implications on primordial magnetic fields and baryogenesis
Chiral anomaly and its implications on primordial magnetic fields and baryogenesisAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Francesco Coradeschi. EXTRA SEMINAR Recent observations of TeV blazars by Fermi identified deficits of secondary GeV cascade photons. These observations can be explained by intergalactic magnetic fields, which may have a primordial origin. If the magnetic fields are helical and generated in the early Universe such as before the electroweak symmetry breaking, nontrivial interaction between (hyper)magnetic fields and other particles can cause some interesting and non negligible phenomena in the early Universe. In this talk, I will show that the baryon asymmetry can be generated by the chiral anomaly, and depending on the detail of electroweak cross over, baryon asymmetry is not completely washed out by the electroweak sphalerons. Thus, this mechanism can be responsible for the present baryon asymmetry of the Universe. If this mechanism is responsible for the present Universe, the BSM physics is needed for the generation of (hyper)magnetic fields but not for the baryogenesis. I will also discuss possible mechanism to generate such helical hypermagnetic fields suitable for the baryogenesis scenario. This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series. This talk is included in these lists:
Note that ex-directory lists are not shown. |
Other listsOffice of Scholary Communication Lectureship in Innate Immunity CRASSHOther talksA trip to the Galapagos islands PRESTIGE LECTURE - QUANTUM TECHNOLOGIES Non coding RNA and normal botany BBC Pandemic, Haslemere Edition: Evaluating epidemic dynamics using fine-scale interpersonal distance data from mobile phones SciBarHealth - Arthritis, Bones & Joints Coercion in a Subjective World |
Kohei Kamada -- IBS, Daejeon
Tuesday 02 October 2018, 16:00-17:00