Determination of the Fireball Dimensions from Second Order Interference Between Two-Pions
Collaboration
•15 pages
Published in:
- Nucl.Phys.B 103 (1976) 198-212
- Published: 1976
Report number:
- CERN/D.Ph.II/PHYS 75-44
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Abstract: (Elsevier)
Positive correlations are observed for pion pairs of equal charge and similar momentum vectors, produced in the reactions π p→p+5 π and π p→p + 7 π at 4 to 25 GeV/ c . The results are consistent with being due to the second-order interference effects expected for pairs of identical bosons and lead to the determination of the average dimension of the “fire-ball’ from which the pions are emitted (〈 R 〉 = 1.0 ± −0.2 +0.4 fm). Attempts are made to study the fire-ball shape by selecting pions pair emitted in various polar and azimuthal directions.- PI P: INTERACTION
- INTERACTION: PI P
- P: FINAL STATE
- FINAL STATE: P
- PI: FINAL STATE
- FINAL STATE: PI
- EFFECT: INTERFERENCE
- INTERFERENCE: TWO-PION
- MODEL: FIREBALL
- DATA ANALYSIS METHOD
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