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Measurement of associated charm production in pp interactions at\(\sqrt s = 62 GeV\)

Измерение ассоциативного рождения шарма в pp взаимодействиях при\(\sqrt s = 62 GeV\) ГэВГэВ

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Il Nuovo Cimento A (1965-1970)

Summary

The associated charm production has been studied in pp interactions at\(\sqrt s = 62 GeV\). The comparison of the measured production cross-section and the e-- ratio with various theoretical models and with existing inclusive e/π measurements allows one to conclude that the most likely interpretation of the associated production is in terms of a charmed baryon Λ +e produced forward, plus the\(\bar D\) meson produced centrally.

Riassunto

Si è studiata la produzione associata di particelle con “charm” nelle interazioni pp a\(\sqrt s = 62 GeV\). Il confronto dei valori misurati della sezione d'urto di produzione e del rapporto e-- con vari modelli teorici e con le esistenti misure del valore inclusivo di e/π permette di concludere che l'interpretazione piú probabile della produzione associata osservata si ha in termini di un barione charmato Λ +c prodotto in avanti e di un mesone anticharmato\(\bar D\) prodotto in zona centrale.

Резюме

В pp взаимодействиях при\(\sqrt s = 62 GeV\) ГэВ исследуется ассоциативное рождение шарма. Сравнение измеренного поперечного сечения образования и отношения e-- с различными теоретическими моделями и с имеющимися инклюзивными e/π измерениями позволяет сделать вывод, что наиболее вероятная интерпретация ассоциативного рождения возможна в терминах очарованного бариона +c , рожденного в направлении вперед, плюс Λ\(\bar D\) мезон, рожденный центрально.

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Basile, M., Cara Romeo, G., Cifarelli, L. et al. Measurement of associated charm production in pp interactions at\(\sqrt s = 62 GeV\) . Nuov Cim A 63, 230–242 (1981). https://doi.org/10.1007/BF02902671

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