27-30 October 2026
Sevastopol Hotel
Europe/Moscow timezone
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Baryon photon searches. VMD and mixing

29 Oct 2026, 09:45
15m
Sevastopol Hotel

Sevastopol Hotel

Bol'shaya Yushunskaya str., 1A
Oral talk High energy physics: theory High energy physics: theory

Speaker

Ivan Maslakov (Nikolaevich)

Description

We investigate a model with a gauge boson of the baryonic U(1)_B group.

Relevance: Problems of dark matter and baryon asymmetry of the Universe

Objectives:
-Construction of the Lagrangian for baryon‑photon interactions with hadrons at energy scales typical of current detectors.
-Calculation of the baryon‑photon production cross section in the main channels.
-Estimation of the parameters of visible decays.
-Estimation of the sensitivity of current detectors.

Methods:
-We derive the mixing form factors of the baryon‑photon with vector mesons from the chiral sigma model.
-Low‑energy theory (TiMoFey detector): within chiral theory, we take into account resonances that contribute at the characteristic energy scale. We calculate the baryon‑photon production cross section in the main channels (πN and NN collisions).
-High‑energy theory: to calculate the production cross section in pp collisions at a higher energy scale, we use the tensor pomeron exchange notation.

Results:
-We determine the sensitivity of the TiMoFey detector.
-Also we consider general vector and axial vector particle (coresponding to arbitrary U(1) group, but not only baryon). We obtained decay channels and nucleon vertexes for such models.

Plans:
-The sensitivity of high-energy detectors will be determined in the near future with the approach of the interference exchange.

Primary authors

Ivan Maslakov (Nikolaevich) Prof. Dmitry Gorbunov (INR RAS)

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