Preliminary study of the missing mass spectra via the $^{12}C(p, K^0_s)$ and $^{12}C(p,\Lambda)$ reactions at 10 GeV/c

TL;DR

This study analyzes missing mass spectra from proton-carbon reactions at 10 GeV/c using bubble chamber data, revealing signals for various reactions and an enhancement in the pion spectrum, indicating potential new insights into particle interactions.

Contribution

First analysis of missing mass spectra for specific reactions at 10 GeV/c using bubble chamber data, identifying reaction signals and spectral enhancements.

Findings

Observed signals for multiple proton-induced reactions.

Detected significant enhancement in the pion momentum spectrum.

Identified potential reaction channels requiring further study.

Abstract

The missing mass spectra for the $^{12}C(p, K^0_s)$ and $^{12}C(p,\Lambda)$ reactions have been studied by using of the propane bubble chamber(PBC) data from 700000 stereo photographs or $10^6$ inelastic interactions. The momentum spectrum of $\pi^-$ in range of 100-200 MeV/c have observed the significant enhancement from the p+C$\to \pi^-\Lambda$X(p+C$\to\pi^-K^0_s$X) reaction. The missing mass spectra have been observed signals for the $p(p,\pi^-K^0_s)$, $^3H(p,pK^0_s)$, p(p,$\Lambda)\pi^-\gamma$ and p(p,$\pi^-)\Lambda$ reactions. This experimental study will need to continue by using of a different identification methods for a reaction channels.