$K^0_S$ meson production in inelastic p+p interactions at 31, 40 and 80 $\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$ beam momentum measured by NA61$/$SHINE at the CERN SPS

Abgrall, N.; Adhikary, H.; Adrich, P.; Allison, K.K.; Amin, N.; Andronov, E.V.; Antićić, T.; Arsene, I.-C.; Bajda, M.; Balkova, Y.

doi:10.1140/epjc/s10052-024-13056-2

$K^0_S$ meson production in inelastic p+p interactions at 31, 40 and 80 $\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$ beam momentum measured by NA61 $/$ SHINE at the CERN SPS

NA61/SHINE

Collaboration

•

N. Abgrall
(
- Geneva U.
)

Feb 26, 2024

17 pages

Published in:

Eur.Phys.J.C 84 (2024) 8, 820

Published: Aug 15, 2024

e-Print:

2402.17025 [hep-ex]

DOI:

10.1140/epjc/s10052-024-13056-2

Report number:

FERMILAB-PUB-24-0713-AD

Experiments:

CERN-NA-061

View in:

links

reference search3 citations

Citations per year

Abstract: (Springer)

The yields of

K^0_S

mesons have been measured in inelastic p+p interactions at incident projectile momenta of 31, 40 and 80

\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c

(

\sqrt{s_{NN}}=7.7, 8.8

and 12.3

\text {Ge}\hspace{-1.00006pt}\text {V}

, respectively). The data were recorded by the NA61

/

SHINE spectrometer at the CERN Super Proton Synchrotron and the

K^0_S

mesons identified via their decays into

\pi ^{+} \pi ^{-}

pairs. Double-differential distributions are presented as function of transverse momentum and rapidity. The mean multiplicities of

K^0_S

mesons were determined to be

(5.95 \pm 0.19 (stat) \pm 0.30 (sys)) \times 10^{-2}

at 31

\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c

,

(7.61 \pm 0.13 (stat) \pm 0.43 (sys)) \times 10^{-2}

at 40

\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c

and

(11.58 \pm 0.12 (stat) \pm 0.55 (sys)) \times 10^{-2}

at 80

\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c

. The results on

K^{0}_{S}

production are compared with the production of charged kaons in corresponding reactions and with model calculations (Epos1.99, SMASH 2.0 and PHSD) as well as with published data from other experiments.

Note:

arXiv admin note: substantial text overlap with arXiv:2106.07535

p p: inelastic scattering
p p: colliding beams
K0(S): production
K0(S): hadronic decay
pi: pair production
beam: momentum
NA61
proton synchrotron
decay modes
K0(S): multiplicity

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KS0K^0_SKS0​ meson production in inelastic p+p interactions at 31, 40 and 80 GeV ⁣/ ⁣c\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!cGeV/c beam momentum measured by NA61///SHINE at the CERN SPS

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Analysis of V-events

$K^0_S$ meson production in inelastic p+p interactions at 31, 40 and 80 $\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$ beam momentum measured by NA61 $/$ SHINE at the CERN SPS