3 research outputs found
Recommended from our members
Search for baryon resonances up to 10 GeV mass produced in p+p->+mm with a resolution of +- 25 MeV
A simple magnet-less missiong-mass experiment is proposed to investigate the mass-spectrum of non-strange baryons of isospins 1/2 and 3/2 in the mass-range from 4 to 10GeV with a resolution of {+-}25 MeV or better. The spacing between baryons expected from the empirical interval rule {Delta}M{sup 2} = 1 BeV{sup 2} is 125 and 50 MeV for masses of 4 and 10 GeV respectively; if the rule holds, one expects 10{sup 2}-4{sup 2} = 84 resonances in this range. They plan to use the reaction p + p - p + MM and to detect the recoil protons in the region of the Jacobian peak. The protons of momenta from 400 to 850 MeV/c are selected by means of time-of-flight, range, and pulse height and are recorded in a pulse height analyzer. Since no magnets, wire planes, computers or any other major facilities are needed, the experiment can be done as soon as the beam, either full extracted (Option 1) or secondary diffracted (Option 2) or interla (Option 3) is available
Recommended from our members
Measurement of N* Production in p p ---> p N* between 9-GeV/c and 300-GeV/c
The authors have measured the missing-mass spectrum of p + p {yields} p + MM in the region 1.5 < MM < 7.0 GeV using the acceleration ramp of the NAL machine between 9 and 300 GeV/c and the H{sub 2} jet target. They observe strong N*(1690) and N*(2190) production and are continuing the search for heavier mass resonances
Recommended from our members
Missing Mass Spectra from p p ---> p X from 9-GeV/c to 300-GeV/c
Missing mass spectra were obtained by measuring recoil protons from the reaction p + p {yields} p + X in the Jacobian peak region at |t| = 0.175 and 0.25 (GeV/c){sup 2}. The incident momentum range from 9 to 300 GeV/c was covered continuously by taking data during the acceleration ramp of the Fermi National Accelerator Laboratory machine. Our missing mass range varied from 1.5 to 8.5 GeV and we observed the well known N*(1688) and N*(2l90) but no significant structures at higher mass