Search for quarks produced with large transverse momentum in 400-GeV proton-nucleus collisions

D. Antreasyan; G. Cocconi; J. W. Cronin; H. J. Frisch; K. Olive; M. J. Shochet; L. Kluberg; J. Mueller; P. A. Piroué; R. L. Sumner

doi:10.1103/PhysRevLett.39.513

Search for quarks produced with large transverse momentum in 400-GeV proton-nucleus collisions

D. Antreasyan, G. Cocconi, J. W. Cronin, H. J. Frisch, K. Olive, M. J. Shochet, L. Kluberg, J. Mueller, P. A. Piroué, R. L. Sumner

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Abstract

We have searched for charge-13 and charge-23 particles produced with large p in 400-GeV proton-Cu collisions. At p=6.15 GeV/c, 4.9 × 104 positive and 1.5 × 104 negative unit-charge particles provided the normalization; no fractionally charged particles were found. The 90%-confidence-level upper limits for the invariant production cross sections per nucleon for positive and negative charge-13 particles are 5.1 × 10-39 and 8.8 × 10-39 cm2 GeV-2, respectively; for charge-23 particles the respective limits are 1.3 × 10-39 and 2.2 × 10-39 cm2 GeV-2.

Original language	English (US)
Pages (from-to)	513-515
Number of pages	3
Journal	Physical review letters
Volume	39
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.39.513
State	Published - 1977
Externally published	Yes

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title = "Search for quarks produced with large transverse momentum in 400-GeV proton-nucleus collisions",

abstract = "We have searched for charge-13 and charge-23 particles produced with large p in 400-GeV proton-Cu collisions. At p=6.15 GeV/c, 4.9 × 104 positive and 1.5 × 104 negative unit-charge particles provided the normalization; no fractionally charged particles were found. The 90%-confidence-level upper limits for the invariant production cross sections per nucleon for positive and negative charge-13 particles are 5.1 × 10-39 and 8.8 × 10-39 cm2 GeV-2, respectively; for charge-23 particles the respective limits are 1.3 × 10-39 and 2.2 × 10-39 cm2 GeV-2.",

author = "D. Antreasyan and G. Cocconi and Cronin, {J. W.} and Frisch, {H. J.} and K. Olive and Shochet, {M. J.} and L. Kluberg and J. Mueller and Pirou{\'e}, {P. A.} and Sumner, {R. L.}",

year = "1977",

doi = "10.1103/PhysRevLett.39.513",

language = "English (US)",

volume = "39",

pages = "513--515",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

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TY - JOUR

T1 - Search for quarks produced with large transverse momentum in 400-GeV proton-nucleus collisions

AU - Antreasyan, D.

AU - Cocconi, G.

AU - Cronin, J. W.

AU - Frisch, H. J.

AU - Olive, K.

AU - Shochet, M. J.

AU - Kluberg, L.

AU - Mueller, J.

AU - Piroué, P. A.

AU - Sumner, R. L.

PY - 1977

Y1 - 1977

N2 - We have searched for charge-13 and charge-23 particles produced with large p in 400-GeV proton-Cu collisions. At p=6.15 GeV/c, 4.9 × 104 positive and 1.5 × 104 negative unit-charge particles provided the normalization; no fractionally charged particles were found. The 90%-confidence-level upper limits for the invariant production cross sections per nucleon for positive and negative charge-13 particles are 5.1 × 10-39 and 8.8 × 10-39 cm2 GeV-2, respectively; for charge-23 particles the respective limits are 1.3 × 10-39 and 2.2 × 10-39 cm2 GeV-2.

AB - We have searched for charge-13 and charge-23 particles produced with large p in 400-GeV proton-Cu collisions. At p=6.15 GeV/c, 4.9 × 104 positive and 1.5 × 104 negative unit-charge particles provided the normalization; no fractionally charged particles were found. The 90%-confidence-level upper limits for the invariant production cross sections per nucleon for positive and negative charge-13 particles are 5.1 × 10-39 and 8.8 × 10-39 cm2 GeV-2, respectively; for charge-23 particles the respective limits are 1.3 × 10-39 and 2.2 × 10-39 cm2 GeV-2.

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DO - 10.1103/PhysRevLett.39.513

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EP - 515

JO - Physical review letters

JF - Physical review letters

IS - 9

ER -

Search for quarks produced with large transverse momentum in 400-GeV proton-nucleus collisions

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