Measurements of $${\Xi \left( 1530\right) ^{0}} $$ and $${\overline{\Xi }\left( 1530\right) ^{0}} $$ production in proton–proton interactions at $$\sqrt{s_{NN}}$$ = 17.3 $$\text{ GeV }$$ in the NA61/SHINE experiment

• Published in: The European physical journal. C, Particles and fields Vol. 81; no. 10
• Main Authors: Acharya, A., Adhikary, H., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Babkin, V., Balkova, Y., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H.-J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J.
• Format: Journal Article
• Language: English
• Published: United States Springer 16-10-2021
• Subjects: NUCLEAR PHYSICS AND RADIATION PHYSICS; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-021-09631-6

Abstract
Double-differential yields of
$${\Xi \left( 1530\right) ^{0}} $$
Ξ
1530
0
and
$${\overline{\Xi }\left( 1530\right) ^{0}} $$
Ξ
¯
1530
0
resonances produced in
p+p
interactions were measured at a laboratory beam momentum of 158 
$$\text{ GeV }\!/\!c$$
GeV
/
c
. This measurement is the first of its kind in
p+p
interactions below LHC energies. It was performed at the CERN SPS by the NA61/SHINE collaboration. Double-differential distributions in rapidity and transverse momentum were obtained from a sample of
$$26\times 10^6$$
26
×
10
6
inelastic events. The spectra are extrapolated to full phase space resulting in mean multiplicity of
$${\Xi \left( 1530\right) ^{0}} $$
Ξ
1530
0
(
$$6.73 \pm 0.25\pm 0.67)\times 10^{-4}$$
6.73
±
0.25
±
0.67
)
×
10
-
4
and
$${\overline{\Xi }\left( 1530\right) ^{0}} $$
Ξ
¯
1530
0
(
$$2.71 \pm 0.18\pm 0.18)\times 10^{-4}$$
2.71
±
0.18
±
0.18
)
×
10
-
4
. The rapidity and transverse momentum spectra and mean multiplicities were compared to predictions of string-hadronic and statistical model calculations.