Observation of pp'20 at rest: Evidence concerning s-state annihilation

S. Devons; T. Kozlowski; P. Nemethy; S. Shapiro; N. Horwitz; T. Kalogeropoulos; J. Skelly; R. Smith; H. Uto

doi:10.1103/PhysRevLett.27.1614

Observation of pp'20 at rest: Evidence concerning s-state annihilation

S. Devons, T. Kozlowski, P. Nemethy, S. Shapiro, N. Horwitz, T. Kalogeropoulos, J. Skelly, R. Smith, H. Uto

Research output: Contribution to journal › Article › peer-review

Abstract

We have identified the annihilation mode pp'20 for antiprotons stopping in liquid hydrogen at a rate which is 0.15 (±20%) times that reported for pp'. This indicates that about 40% of all annihilations into 2 take place from odd-orbital atomic pp states, in contrast to the usual assumption that annihilation from the s state predominates.

Original language	English (US)
Pages (from-to)	1614-1617
Number of pages	4
Journal	Physical Review Letters
Volume	27
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.27.1614
State	Published - 1971

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General Physics and Astronomy

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10.1103/PhysRevLett.27.1614

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title = "Observation of pp'20 at rest: Evidence concerning s-state annihilation",

abstract = "We have identified the annihilation mode pp'20 for antiprotons stopping in liquid hydrogen at a rate which is 0.15 (±20%) times that reported for pp'. This indicates that about 40% of all annihilations into 2 take place from odd-orbital atomic pp states, in contrast to the usual assumption that annihilation from the s state predominates.",

author = "S. Devons and T. Kozlowski and P. Nemethy and S. Shapiro and N. Horwitz and T. Kalogeropoulos and J. Skelly and R. Smith and H. Uto",

year = "1971",

doi = "10.1103/PhysRevLett.27.1614",

language = "English (US)",

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journal = "Physical Review Letters",

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T1 - Observation of pp'20 at rest

T2 - Evidence concerning s-state annihilation

AU - Devons, S.

AU - Kozlowski, T.

AU - Nemethy, P.

AU - Shapiro, S.

AU - Horwitz, N.

AU - Kalogeropoulos, T.

AU - Skelly, J.

AU - Smith, R.

AU - Uto, H.

PY - 1971

Y1 - 1971

N2 - We have identified the annihilation mode pp'20 for antiprotons stopping in liquid hydrogen at a rate which is 0.15 (±20%) times that reported for pp'. This indicates that about 40% of all annihilations into 2 take place from odd-orbital atomic pp states, in contrast to the usual assumption that annihilation from the s state predominates.

AB - We have identified the annihilation mode pp'20 for antiprotons stopping in liquid hydrogen at a rate which is 0.15 (±20%) times that reported for pp'. This indicates that about 40% of all annihilations into 2 take place from odd-orbital atomic pp states, in contrast to the usual assumption that annihilation from the s state predominates.

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Observation of pp'20 at rest: Evidence concerning s-state annihilation

Abstract

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