1993
DOI: 10.1103/physrevd.47.1231
|View full text |Cite
|
Sign up to set email alerts
|

Search for anomalously heavy hydrogen in deep sea water at 4000 m

Abstract: A search was made with a sea water sample taken at a depth of 4000 m for anomalously heavy hydrogen dating from the early Universe. A technique of accelerator mass spectrometry involving a time-offlight spectrometer was used. A new upper limit for the concentration of heavy particles in hydrogen is set around 4 X lo-'' in the mass range of 5-1600 u at a 95% confidence level.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

1
52
0

Year Published

1998
1998
2020
2020

Publication Types

Select...
10

Relationship

0
10

Authors

Journals

citations
Cited by 54 publications
(53 citation statements)
references
References 20 publications
(13 reference statements)
1
52
0
Order By: Relevance
“…This is in agreement with a search (Byrne et al, 2002) for the lower mass bound of the squarks and gluinos about 230 GeV. It is also in agreement with searches (Smith et al, 1982;Yamagata et al, 1993). The reheat temperature can be very low.…”
Section: Stable Anomalously-charged Scalarssupporting
confidence: 90%
“…This is in agreement with a search (Byrne et al, 2002) for the lower mass bound of the squarks and gluinos about 230 GeV. It is also in agreement with searches (Smith et al, 1982;Yamagata et al, 1993). The reheat temperature can be very low.…”
Section: Stable Anomalously-charged Scalarssupporting
confidence: 90%
“…A detailed investigation of this possibility is beyond the scope of this work, but such a strongly interacting dark matter (SIMP) candidate appears to be heavily disfavored as discussed for example in refs. [54][55][56][57][58][59][60].…”
Section: Jhep09(2014)130mentioning
confidence: 99%
“…The effectiveness of the wide-array detectors in searching for Q-balls is, therefore, limited by the total area of their counters. Searches for stable ultraheavy nuclei in matter [18], which may be suitable for detecting smaller Q-balls (with charges 10 12 10 13 ), afford no limit at present because the mass range of interest, m Q * 10 12 GeV, has never been explored. It would be interesting to see if some of the exotic events in the cosmic rays, e.g., the so called Centauro events [19], the penetrating halo event of the Pamir experiment [19,20], and the ultrahigh energy cosmic rays that appear to defy the Greisen-Zatsepin-Kuzmin bound [21], may be related to the relic Q-balls.…”
mentioning
confidence: 99%