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References - Bogoliubov Laboratory of Theoretical Physics - JINR

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ADC, channels<br />

800<br />

600<br />

400<br />

200<br />

100 200 300 400 500 600<br />

ADC, channels<br />

N events<br />

400<br />

200<br />

450 500 550 600 650 700<br />

TDC, channels<br />

Figure 3: The selection <strong>of</strong> the dp-elastic scattering events by the energy losses correlation a),time<br />

difference after appying <strong>of</strong> the energy losses correlation cut b).<br />

N events<br />

ADC, channels<br />

100<br />

50<br />

0<br />

100 200 300 400 500 600 700<br />

a<br />

ADC, channels<br />

800 c<br />

600<br />

400<br />

200<br />

100 200 300 400 500 600 700<br />

ADC, channels<br />

N events<br />

N events<br />

30<br />

20<br />

10<br />

0<br />

100 200 300 400 500 600 700 800 900<br />

150<br />

100<br />

50<br />

b<br />

ADC, channels<br />

400 450 500 550 600 650 700 750<br />

TDC, channels<br />

Figure 4: The results obtained at 2 GeV deuteron beam on carbon target for 8 ◦ deuteron scattering<br />

angle in lab: a) deuteron energy losses, b) proton energy losses, c) correlation <strong>of</strong> proton and deuteron<br />

energy losses, d) time difference between the signals for deuteron and proton detectors.<br />

placed on the left and right from the peak. For this purpose the time difference spectra<br />

in Fig. 5a were fitted by the sum <strong>of</strong> gaussian and constant. The ratio <strong>of</strong> the obtained<br />

constants was considered as a normalization factor.<br />

The results <strong>of</strong> the CH2 − C subtraction <strong>of</strong> the time difference spectra are presented<br />

in Fig. 5b. The lines correspond to the prompt time windows for dp-elastic events. The<br />

background placed outside <strong>of</strong> the window is about 3% from the peak height.<br />

399<br />

d

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