Asymmetries in the production of Λ(c)/+ and Λ(c)/- baryons in 500 GeV/c π- nucleon interactions

E. M. Aitala; S. Amato; J. C. Anjos; J. A. Appel; D. Ashery; S. Banerjee; I. Bediaga; G. Blaylock; S. B. Bracker; P. R. Burchat; R. A. Burnstein; T. Carter; H. S. Carvalho; N. K. Copty; L. M. Cremaldi; C. Darling; K. Denisenko; S. Devmal; A. Fernandez; G. F. Fox; P. Gagnon; C. Gobel; K. Gounder; A. M. Halling; G. Herrera; G. Hurvits; C. James; P. A. Kasper; S. Kwan; D. C. Langs; J. Leslie; B. Lundberg; J. Magnin; S. MayTal-Beck; B. Meadows; J. R.T. De Mello Neto; D. Mihalcea; R. H. Milburn; J. M. de Miranda; A. Napier; A. Nguyen; A. B. d'Oliveira; K. O'Shaughnessy; K. C. Peng; L. P. Perera; M. V. Purohit; B. Quinn; S. Radeztsky; A. Rafatian; N. W. Reay; J. J. Reidy; A. C. Dos Reis; H. A. Rubin; D. A. Sanders; A. K.S. Santha; A. F.S. Santoro; A. J. Schwartz; M. Sheaff; R. A. Sidwell; F. R.A. Simão; A. J. Slaughter; M. D. Sokoloff; J. Solano; N. R. Stanton; R. J. Stefanski; K. Stenson; D. J. Summers; S. Takach; K. Thorne; A. K. Tripathi; S. Watanabe; R. Weiss-Babai; J. Wiener; N. Witchey; E. Wolin; S. M. Yang; D. Yi; S. Yoshida; R. Zaliznyak; C. Zhang

doi:10.1016/S0370-2693(00)01239-9

Asymmetries in the production of Λ(c)/⁺ and Λ(c)/^- baryons in 500 GeV/c π^- nucleon interactions

E. M. Aitala, S. Amato, J. C. Anjos, J. A. Appel, D. Ashery, S. Banerjee, I. Bediaga, G. Blaylock, S. B. Bracker, P. R. Burchat, R. A. Burnstein, T. Carter, H. S. Carvalho, N. K. Copty, L. M. Cremaldi, C. Darling, K. Denisenko, S. Devmal, A. Fernandez, G. F. FoxP. Gagnon, C. Gobel, K. Gounder, A. M. Halling, G. Herrera, G. Hurvits, C. James, P. A. Kasper, S. Kwan, D. C. Langs, J. Leslie, B. Lundberg, J. Magnin^*, S. MayTal-Beck, B. Meadows, J. R.T. De Mello Neto, D. Mihalcea, R. H. Milburn, J. M. de Miranda, A. Napier, A. Nguyen, A. B. d'Oliveira, K. O'Shaughnessy, K. C. Peng, L. P. Perera, M. V. Purohit, B. Quinn, S. Radeztsky, A. Rafatian, N. W. Reay, J. J. Reidy, A. C. Dos Reis, H. A. Rubin, D. A. Sanders, A. K.S. Santha, A. F.S. Santoro, A. J. Schwartz, M. Sheaff, R. A. Sidwell, F. R.A. Simão, A. J. Slaughter, M. D. Sokoloff, J. Solano, N. R. Stanton, R. J. Stefanski, K. Stenson, D. J. Summers, S. Takach, K. Thorne, A. K. Tripathi, S. Watanabe, R. Weiss-Babai, J. Wiener, N. Witchey, E. Wolin, S. M. Yang, D. Yi, S. Yoshida, R. Zaliznyak, C. Zhang

^*この論文の責任著者

教養教育学系

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

26 被引用数 (Scopus)

抄録

We present a measurement of asymmetries in the production of Λ(c)/⁺ and Λ(c)/^- baryons in 500 GeV/c π^--nucleon interactions from the E791 experiment at Fermilab. The asymmetries were measured as functions of Feynman x (x(F)) and transverse momentum squared (p(T)/²) using a sample of 1819 ± 62 Λ(c)'s observed in the decay channel Λ(c)/⁺ → pK^-π⁺. We observe more Λ(c)/⁺ than Λ(c)/^- baryons, with an asymmetry of (12.7 ± 3.4 ± 1.3)% independent of x(F) and p(T)/² in our kinematical range (-0.1 ≤ x(F) ≤ 0.6 and 0.0 ≤ p(T)/² ≤ 8.0 (GeV/c)²). This Λ(c) asymmetry measurement is the first with data in both the positive and negative x(F) regions. (C) 2000 Elsevier Science B.V.

本文言語	英語
ページ（範囲）	42-48
ページ数	7
ジャーナル	Physics Letters B
巻	495
号	1-2
DOI	https://doi.org/10.1016/S0370-2693(00)01239-9
出版ステータス	出版済み - 2000/12/07

ASJC Scopus 主題領域

核物理学および高エネルギー物理学

文献へのアクセス

10.1016/S0370-2693(00)01239-9

引用スタイル

Aitala, E. M., Amato, S., Anjos, J. C., Appel, J. A., Ashery, D., Banerjee, S., Bediaga, I., Blaylock, G., Bracker, S. B., Burchat, P. R., Burnstein, R. A., Carter, T., Carvalho, H. S., Copty, N. K., Cremaldi, L. M., Darling, C., Denisenko, K., Devmal, S., Fernandez, A., ... Zhang, C. (2000). Asymmetries in the production of Λ(c)/⁺ and Λ(c)/^- baryons in 500 GeV/c π^- nucleon interactions. Physics Letters B, 495(1-2), 42-48. https://doi.org/10.1016/S0370-2693(00)01239-9

@article{689eae7d4b2445da8f8a3a89d5ca5668,

title = "Asymmetries in the production of Λ(c)/+ and Λ(c)/- baryons in 500 GeV/c π- nucleon interactions",

abstract = "We present a measurement of asymmetries in the production of Λ(c)/+ and Λ(c)/- baryons in 500 GeV/c π--nucleon interactions from the E791 experiment at Fermilab. The asymmetries were measured as functions of Feynman x (x(F)) and transverse momentum squared (p(T)/2) using a sample of 1819 ± 62 Λ(c)'s observed in the decay channel Λ(c)/+ → pK-π+. We observe more Λ(c)/+ than Λ(c)/- baryons, with an asymmetry of (12.7 ± 3.4 ± 1.3)% independent of x(F) and p(T)/2 in our kinematical range (-0.1 ≤ x(F) ≤ 0.6 and 0.0 ≤ p(T)/2 ≤ 8.0 (GeV/c)2). This Λ(c) asymmetry measurement is the first with data in both the positive and negative x(F) regions. (C) 2000 Elsevier Science B.V.",

author = "Aitala, {E. M.} and S. Amato and Anjos, {J. C.} and Appel, {J. A.} and D. Ashery and S. Banerjee and I. Bediaga and G. Blaylock and Bracker, {S. B.} and Burchat, {P. R.} and Burnstein, {R. A.} and T. Carter and Carvalho, {H. S.} and Copty, {N. K.} and Cremaldi, {L. M.} and C. Darling and K. Denisenko and S. Devmal and A. Fernandez and Fox, {G. F.} and P. Gagnon and C. Gobel and K. Gounder and Halling, {A. M.} and G. Herrera and G. Hurvits and C. James and Kasper, {P. A.} and S. Kwan and Langs, {D. C.} and J. Leslie and B. Lundberg and J. Magnin and S. MayTal-Beck and B. Meadows and {De Mello Neto}, {J. R.T.} and D. Mihalcea and Milburn, {R. H.} and {de Miranda}, {J. M.} and A. Napier and A. Nguyen and d'Oliveira, {A. B.} and K. O'Shaughnessy and Peng, {K. C.} and Perera, {L. P.} and Purohit, {M. V.} and B. Quinn and S. Radeztsky and A. Rafatian and Reay, {N. W.} and Reidy, {J. J.} and {Dos Reis}, {A. C.} and Rubin, {H. A.} and Sanders, {D. A.} and Santha, {A. K.S.} and Santoro, {A. F.S.} and Schwartz, {A. J.} and M. Sheaff and Sidwell, {R. A.} and Sim{\~a}o, {F. R.A.} and Slaughter, {A. J.} and Sokoloff, {M. D.} and J. Solano and Stanton, {N. R.} and Stefanski, {R. J.} and K. Stenson and Summers, {D. J.} and S. Takach and K. Thorne and Tripathi, {A. K.} and S. Watanabe and R. Weiss-Babai and J. Wiener and N. Witchey and E. Wolin and Yang, {S. M.} and D. Yi and S. Yoshida and R. Zaliznyak and C. Zhang",

note = "Funding Information: We gratefully acknowledge the assistance of the staffs of Fermilab and of all the participating institutions. This research was supported by the Brazilian Conselho Nacional de Desenvolvimento Cient{\'ı}fico e Tecnol{\'o}gico, CONACyT (Mexico), the U.S.–Israel Binational Science Foundation, the U.S. Department of Energy and the U.S. National Science Foundation. Fermilab is operated by the Universities Research Associates, Inc., under contract with the U.S. Department of Energy.",

year = "2000",

month = dec,

day = "7",

doi = "10.1016/S0370-2693(00)01239-9",

language = "英語",

volume = "495",

pages = "42--48",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Aitala, EM, Amato, S, Anjos, JC, Appel, JA, Ashery, D, Banerjee, S, Bediaga, I, Blaylock, G, Bracker, SB, Burchat, PR, Burnstein, RA, Carter, T, Carvalho, HS, Copty, NK, Cremaldi, LM, Darling, C, Denisenko, K, Devmal, S, Fernandez, A, Fox, GF, Gagnon, P, Gobel, C, Gounder, K, Halling, AM, Herrera, G, Hurvits, G, James, C, Kasper, PA, Kwan, S, Langs, DC, Leslie, J, Lundberg, B, Magnin, J, MayTal-Beck, S, Meadows, B, De Mello Neto, JRT, Mihalcea, D, Milburn, RH, de Miranda, JM, Napier, A, Nguyen, A, d'Oliveira, AB, O'Shaughnessy, K, Peng, KC, Perera, LP, Purohit, MV, Quinn, B, Radeztsky, S, Rafatian, A, Reay, NW, Reidy, JJ, Dos Reis, AC, Rubin, HA, Sanders, DA, Santha, AKS, Santoro, AFS, Schwartz, AJ, Sheaff, M, Sidwell, RA, Simão, FRA, Slaughter, AJ, Sokoloff, MD, Solano, J, Stanton, NR, Stefanski, RJ, Stenson, K, Summers, DJ, Takach, S, Thorne, K, Tripathi, AK, Watanabe, S, Weiss-Babai, R, Wiener, J, Witchey, N, Wolin, E, Yang, SM, Yi, D, Yoshida, S, Zaliznyak, R & Zhang, C 2000, 'Asymmetries in the production of Λ(c)/⁺ and Λ(c)/^- baryons in 500 GeV/c π^- nucleon interactions', Physics Letters B, vol. 495, no. 1-2, pp. 42-48. https://doi.org/10.1016/S0370-2693(00)01239-9

TY - JOUR

T1 - Asymmetries in the production of Λ(c)/+ and Λ(c)/- baryons in 500 GeV/c π- nucleon interactions

AU - Aitala, E. M.

AU - Amato, S.

AU - Anjos, J. C.

AU - Appel, J. A.

AU - Ashery, D.

AU - Banerjee, S.

AU - Bediaga, I.

AU - Blaylock, G.

AU - Bracker, S. B.

AU - Burchat, P. R.

AU - Burnstein, R. A.

AU - Carter, T.

AU - Carvalho, H. S.

AU - Copty, N. K.

AU - Cremaldi, L. M.

AU - Darling, C.

AU - Denisenko, K.

AU - Devmal, S.

AU - Fernandez, A.

AU - Fox, G. F.

AU - Gagnon, P.

AU - Gobel, C.

AU - Gounder, K.

AU - Halling, A. M.

AU - Herrera, G.

AU - Hurvits, G.

AU - James, C.

AU - Kasper, P. A.

AU - Kwan, S.

AU - Langs, D. C.

AU - Leslie, J.

AU - Lundberg, B.

AU - Magnin, J.

AU - MayTal-Beck, S.

AU - Meadows, B.

AU - De Mello Neto, J. R.T.

AU - Mihalcea, D.

AU - Milburn, R. H.

AU - de Miranda, J. M.

AU - Napier, A.

AU - Nguyen, A.

AU - d'Oliveira, A. B.

AU - O'Shaughnessy, K.

AU - Peng, K. C.

AU - Perera, L. P.

AU - Purohit, M. V.

AU - Quinn, B.

AU - Radeztsky, S.

AU - Rafatian, A.

AU - Reay, N. W.

AU - Reidy, J. J.

AU - Dos Reis, A. C.

AU - Rubin, H. A.

AU - Sanders, D. A.

AU - Santha, A. K.S.

AU - Santoro, A. F.S.

AU - Schwartz, A. J.

AU - Sheaff, M.

AU - Sidwell, R. A.

AU - Simão, F. R.A.

AU - Slaughter, A. J.

AU - Sokoloff, M. D.

AU - Solano, J.

AU - Stanton, N. R.

AU - Stefanski, R. J.

AU - Stenson, K.

AU - Summers, D. J.

AU - Takach, S.

AU - Thorne, K.

AU - Tripathi, A. K.

AU - Watanabe, S.

AU - Weiss-Babai, R.

AU - Wiener, J.

AU - Witchey, N.

AU - Wolin, E.

AU - Yang, S. M.

AU - Yi, D.

AU - Yoshida, S.

AU - Zaliznyak, R.

AU - Zhang, C.

N1 - Funding Information: We gratefully acknowledge the assistance of the staffs of Fermilab and of all the participating institutions. This research was supported by the Brazilian Conselho Nacional de Desenvolvimento Cientı́fico e Tecnológico, CONACyT (Mexico), the U.S.–Israel Binational Science Foundation, the U.S. Department of Energy and the U.S. National Science Foundation. Fermilab is operated by the Universities Research Associates, Inc., under contract with the U.S. Department of Energy.

PY - 2000/12/7

Y1 - 2000/12/7

N2 - We present a measurement of asymmetries in the production of Λ(c)/+ and Λ(c)/- baryons in 500 GeV/c π--nucleon interactions from the E791 experiment at Fermilab. The asymmetries were measured as functions of Feynman x (x(F)) and transverse momentum squared (p(T)/2) using a sample of 1819 ± 62 Λ(c)'s observed in the decay channel Λ(c)/+ → pK-π+. We observe more Λ(c)/+ than Λ(c)/- baryons, with an asymmetry of (12.7 ± 3.4 ± 1.3)% independent of x(F) and p(T)/2 in our kinematical range (-0.1 ≤ x(F) ≤ 0.6 and 0.0 ≤ p(T)/2 ≤ 8.0 (GeV/c)2). This Λ(c) asymmetry measurement is the first with data in both the positive and negative x(F) regions. (C) 2000 Elsevier Science B.V.

AB - We present a measurement of asymmetries in the production of Λ(c)/+ and Λ(c)/- baryons in 500 GeV/c π--nucleon interactions from the E791 experiment at Fermilab. The asymmetries were measured as functions of Feynman x (x(F)) and transverse momentum squared (p(T)/2) using a sample of 1819 ± 62 Λ(c)'s observed in the decay channel Λ(c)/+ → pK-π+. We observe more Λ(c)/+ than Λ(c)/- baryons, with an asymmetry of (12.7 ± 3.4 ± 1.3)% independent of x(F) and p(T)/2 in our kinematical range (-0.1 ≤ x(F) ≤ 0.6 and 0.0 ≤ p(T)/2 ≤ 8.0 (GeV/c)2). This Λ(c) asymmetry measurement is the first with data in both the positive and negative x(F) regions. (C) 2000 Elsevier Science B.V.

UR - http://www.scopus.com/inward/record.url?scp=0034619828&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(00)01239-9

DO - 10.1016/S0370-2693(00)01239-9

M3 - 学術論文

AN - SCOPUS:0034619828

SN - 0370-2693

VL - 495

SP - 42

EP - 48

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

Asymmetries in the production of Λ(c)/+ and Λ(c)/- baryons in 500 GeV/c π- nucleon interactions

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ASJC Scopus 主題領域

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引用スタイル

Asymmetries in the production of Λ(c)/⁺ and Λ(c)/^- baryons in 500 GeV/c π^- nucleon interactions