# Heavy Particle Production Differential Cross Section INSPIRE search

VALUE (cm${}^{2}$sr${}^{-1}$GeV${}^{-1}$) CL% DOCUMENT ID TECN CHG  COMMENT
• • • We do not use the following data for averages, fits, limits, etc. • • •
$<2.6 \times 10^{-36}$ 90 1
 1976
CNTR - $\mathit Q$= 1, $\mathit m=2.1-9.4$ GeV
$<2.2 \times 10^{-33}$ 90 2
 1975
SPEC $\pm{}$ $\mathit Q$= $\pm1$, $\mathit m=4-$15 GeV
$<1.1 \times 10^{-33}$ 90 2
 1975
SPEC $\pm{}$ $\mathit Q$= $\pm2$, $\mathit m=6-$27 GeV
$<8. \times 10^{-35}$ 90 3
 1975
CNTR $\pm{}$ $\mathit m=15-$26 GeV
$<1.5 \times 10^{-34}$ 90 3
 1975
CNTR $\pm{}$ $\mathit Q$= $\pm2$, $\mathit m=3-$10 GeV
$<6. \times 10^{-35}$ 90 3
 1975
CNTR $\pm{}$ $\mathit Q$= $\pm2$, $\mathit m=10-$26 GeV
$<1. \times 10^{-31}$ 90 4
 1974
CNTR $\pm{}$ $\mathit m=3.2-7.2$ GeV
$<5.8 \times 10^{-34}$ 90 5
 1973
SPEC $\pm{}$ $\mathit m=1.5-$24 GeV
$<1.2 \times 10^{-35}$ 90 6
 1971 B
CNTR - $\mathit Q=–$, $\mathit m=2.2-2.8$
$<2.4 \times 10^{-35}$ 90 7
 1971 C
CNTR - $\mathit Q=–$, $\mathit m=1.2-1.7$, $2.1-$4
$<2.4 \times 10^{-35}$ 90
 1969
CNTR - $\mathit Q=–$, $\mathit m=1-$1.8 GeV
$<1.5 \times 10^{-36}$ 8
 1965
CNTR ${}^{}\mathrm {Be}$ target $\mathit m=3-$7 GeV
$<3.0 \times 10^{-36}$ 8
 1965
CNTR ${}^{}\mathrm {Fe}$ target $\mathit m=3-$7 GeV
1  BALDIN 1976 is a 70 GeV Serpukhov experiment. Value is per ${}^{}\mathrm {Al}$ nucleus at $\theta$ = 0. For other charges in range $-0.5$ to $-3.0$, CL = 90$\%$ limit is ($2.6 \times 10^{-36})/\vert$(charge)$\vert$ for mass range (2.1$-$9.4 GeV)${\times }\vert$(charge)$\vert$. Assumes stable particle interacting with matter as do antiprotons.
2  ALBROW 1975 is a CERN ISR experiment with $\mathit E_{{\mathrm {cm}}}$ = 53 GeV. $\theta$ = 40 mr. See figure 5 for mass ranges up to 35 GeV.
3  JOVANOVICH 1975 is a CERN ISR 26$+26$ and 15$+15$ GeV ${{\mathit p}}{{\mathit p}}$ experiment. Figure 4 covers ranges $\mathit Q$ = 1/3 to 2 and $\mathit m$ = 3 to 26 GeV. Value is per GeV momentum.
4  APPEL 1974 is NAL 300 GeV ${{\mathit p}}{}^{}\mathrm {W}$ experiment. Studies forward production of heavy (up to 24 GeV) charged particles with momenta 24$-$200 GeV ($–$charge) and 40$-$150 GeV ($+$charge). Above typical value is for 75 GeV and is per GeV momentum per nucleon.
5  ALPER 1973 is CERN ISR 26$+26$ GeV ${{\mathit p}}{{\mathit p}}$ experiment. $\mathit p$ $>$0.9 GeV, 0.2 $<$ $\beta$ $<$0.65.
6  ANTIPOV 1971B is from same 70 GeV ${{\mathit p}}$ experiment as ANTIPOV 1971C and BINON 1969 .
7  ANTIPOV 1971C limit inferred from flux ratio. 70 GeV ${{\mathit p}}$ experiment.
8  DORFAN 1965 is a 30 ${\mathrm {GeV/}}\mathit c$ ${{\mathit p}}$ experiment at BNL. Units are per GeV momentum per nucleus.
References:
 BALDIN 1976
SJNP 22 264 Search for New Heavy Particles in Proton Collisions with Nuclei at 70 GeV
 ALBROW 1975
NP B97 189 Search for Stable Particles of Charge ${}\geq{}$ 1 and Mass ${}\geq{}$ Deuteron Mass
 JOVANOVICH 1975
PL 56B 105 A Search for Slow Massive Particles with ${{\mathit Z}}{}\leq{}$ 2 at the CERN Intersecting Storage Rings
 APPEL 1974
PRL 32 428 Heavy Particle Production in 300 ${\mathrm {GeV/}}\mathit c$ Proton Tungsten Collisions
 ALPER 1973
PL 46B 265 Large Angle Production of Stable Particles Heavier than the Proton and a Search for Quarks at the CERN Intersecting Storage Rings
 ANTIPOV 1971B
NP B31 235 Observation of Antihelium-3
 ANTIPOV 1971C
PL 34B 164 Production of Low Momentum Negative Particles by 70 GeV Protons
 BINON 1969
PL 30B 510 Production of Antideuterons by 43, 52, and 70 GeV Protons
 DORFAN 1965
PRL 14 999 Search for Massive Particle