Two Types of Dark Matter and
Their Effects on Dark Matter Detection on Earth

Web Page (3)

By Sing H. Lin, Ph.D., E-Mail: singhlin@gmail.com
1. Two Types of Dark Matter

There are two types of dark matter:

Type A low density dark matter is in the galaxy dark matter halo surrounding our Milky Way Galaxy or other
galaxies. It is expected that most dark matters are Type A low density dark matter.

But a fraction of dark matters are Type B dark matter that can clump together into much higher density
because Type B can shed more energy through certain dissipative processes involving dark radiation or dark
force or dark light, or fifth fundamental force or dark photon or other yet unknown processes in the dark
sector of universe.
Professor Lisa Randall of Harvard University, Professor Sean Carroll at the California
Institute of Technology, and several other scientists have already explored and proposed dark radiation, dark
light, dark force, dark photon, and fifth fundamental force in the dark sector of the universe. CERN now has a
new
NA64 project to run a new experiment to try to detect dark photons. This is part of the great mysteries
of dark matter that require more research and experiments in the future.

2. Twelve or More Deep Underground Laboratories Trying to Detect Type A Dark Matter

Twelve or more deep underground laboratories have been set up and running for many years to try to detect
Type A  dark matter. However, ten or more deep underground laboratories keep on coming up empty handed.

But the deep underground laboratory in Gran Sasso mountain in Italy claims that they have detected Type A
dark matter with a signature of annual modulation (seasonal variation) in the detected signal.

Another deep underground laboratory in Soudan, Minnesota, USA has also detected similar signal with a
similar signature of annual modulation. But the team in Minnesota is not sure if it is dark matter because of
multiple detections in multiple detectors in the deep underground laboratory in Minnesota. The team in
Minnesota knows that Type A dark matter cannot produce multiple detections in multiple detectors.

It has been a serious dilemma in science community for many years because the claimed detection of Type A
dark matter in Italy is NOT repeatable in ten or more deep underground laboratories in other parts of the
world. Many scientists question the validity of the claim that Type A dark matter has been detected in Italy.
Many scientists think what the laboratory in Italy has detected are false signals due to problems in detection
systems.

3. What Have We Learned From These Deep Underground Experiments?

3.1. Type A Dark Matter and Assumption of WIMP Model

In the designs and the constructions of those twelve or more deep underground laboratories in the race to try
to be the first to detect dark matter, most scientists are thinking about the Type A dark matter in galaxy dark
matter halo with the popular assumption of WIMP (Weakly Interacting Massive Particle) as a candidate for
Type A dark matter. The assumed WIMP model for galaxy dark matter halo implies that the distribution of
Type A dark matter in the earth is uniform and that all these twelve or more deep underground laboratories
should all have detected lots of WIMPs in a few years of experiments.

3.2. Why Ten or More Deep Underground Laboratories Keep On Coming Up Empty Handed?

But the consistent negative results from ten or more deep underground laboratories/experiments provide us
an important hint that the popular assumption of WIMP as a candidate for Type A dark matter may be wrong.
The news articles on such possible fate of WIMP assumption can be seen
here and here.  The actual Type A
dark matter particles may be super-heavy particle that is much heavier than WIMP by many orders of
magnitude as proposed recently (2016) by
Dr. McCullen Sandora and his colleagues in Denmark. The super-
heavy dark matter particles are also known as
WIMPZilla dark matter or GUTzilla Dark Matter.

If dark matter particle is heavier than WIMP by many orders of magnitude, then the required density of super-
heavy dark matter in galaxy dark matter halo to keep our Milky Way Galaxy from flying apart is lower than
that of assumed WIMP model by many orders of magnitude. Therefore, the probability of detecting super-
heavy Type A dark matter is lower than that of WIMP model by many orders of magnitude. This means that it
may take thousands of years or even longer to be able to detect reasonable number of super-heavy Type A
dark matter particles in these deep underground laboratories. This may be the reason that ten or more deep
underground laboratories keep on coming up empty handed with experiment period of only a few years or
less.

4. Why Two Deep Underground Laboratories Claim Dark Matters Have Been Detected?

But the deep underground laboratory in Gran Sasso mountain in Italy claims that they have detected Type A
dark matter with the signature of the annual modulation in the detected signal.

4.1. Type B vs Type A Dark Matter in These Deep Underground Laboratories

With my 23-year research on Type B high density dark matter associated with Gravity Hills and Mystery
Spots on earth, I have been focusing on Type B high density dark matter at these special locations of Gravity
Hills and Mystery Spots. With my background and experience very different from those of many other
scientists working on dark matter research, I am bringing in an out-of-box thinking and believe that what the
laboratory in Italy has detected are Type B high density dark matter trapped and oscillating in earth gravity
well instead of Type A low density dark matter in galaxy dark matter halo.

4.2. High Concentration of Type B Dark Matter at Special Locations

The distribution of Type B dark matter on earth is NOT uniform, but is highly concentrated at special locations
known as Gravity Hills or Mystery Spots on earth. The density of Type B dark matter at these special
locations is so high as to create very strong abnormal local gravity that manifests as various kinds of gravity
mysteries that have been observed by many people at these special locations on earth for more than 100
years.

My 23-year research on Gravity Hills and Mystery Spots indicates that the source of the significant abnormal
local gravity at each of those strange locations on earth is a fountain of very high density Type B dark matter
with a mass density at least 1,000 times greater than that of average ordinary matter on or near earth
surface. Each fountain of Type B dark matter is supported by two vertical narrow streams of very high
density Type B dark matter trapped and oscillating in earth gravity well. Details of my 23-year research on
Gravity Hills and Mystery Spots as related to very high density Type B dark matter are described on my two
web pages at:

Web Page (2):
http://www.shltrip.com/Oregon-Vortex.html

and

Web Page (1):
http://www.shltrip.com/Magnetic_Hill.html

4.3. First Effect of High Concentration on Dark Matter Detection on Earth

The existence of these special gravity mysteries at these special locations of Gravity Hills and Mystery Spots
on earth indicates that the distribution of Type B dark matter on earth is NOT uniform, but is highly
concentrated at these special locations of Gravity Hills and Mystery Spots. Therefore, we cannot expect all
these deep underground laboratories at various locations of the world to have the same probability of
detecting Type B dark matter. It all depends on whether the dark matter detector in the laboratory intercepts
one of such narrow stream of extreme high density Type B dark matter particles or not.

4.4. Second Effect of High Concentration on Dark Matter Detection on Earth

The density of Type B dark matter in the core of the fountain or in the narrow streams is much higher than
that of Type A in galaxy dark matter halo by many orders of magnitude such that the deep underground
laboratory in Italy is able to detect Type B dark matter in reasonable amount of time if the detector is lucky to
be at the right locations to intercept the narrow stream of extreme high density Type B dark matter.

4.5. Model for Signature of Annual Modulation in Detected Signal

In my theory, the reason for the signature of annual modulation in the detected signal is due to the seasonal
variation of the distance between the sun and the earth as described in Appendix D.2.2 on my Web Page (2).

4.6. Why Deep Underground Laboratory in Minnesota Has Also Detected Type B Dark Matter

Furthermore, I believe what the deep underground laboratory in Soudan, Minnesota, USA has detected are
also Type B high density dark matter for the follow reasons:

4.6.1. High Density and Detection of Dark Matter Particles in Multiple Detectors

The data from deep underground laboratory in Minnesota indicate detection of dark matter particles in
multiple detectors. This experimental finding provides an important hint that the density of dark matter
particles in the stream of dark matter particles being detected is extremely high which is a signature of Type
B dark matter. It is a clear indication that what has been detected is NOT Type A low density dark matter
because Type A dark matter cannot achieve such extreme high density.

On the other hand, my dark matter based theory derived from Gravity Hill Mystery and Shrink-and-Grow
Mystery predicts that the mass density of the core of the fountain of dark matter in the earth must be at least
1,000 times greater than that of ordinary matter on earth surface. Therefore, both experimental data from
deep underground laboratory in Minnesota and my dark matter based theory derived from Gravity Hill
Mystery and Shrink-and-Grow Mystery consistently indicate that the mass densities of dark matter particles
in the streams of dark matter particles in the earth are extremely high.

4.6.2. Streaming of Detected Dark Matter Particles

The dark matter detection data from deep underground laboratory in Minnesota, USA agrees neatly with that
from deep underground laboratory in Italy if the detected dark matter particles are assumed to be streaming
in certain direction. Such streaming dark matter particles inferred from data from deep underground
laboratories agrees with streaming dark matter particles predicted from my dark matter based theory derived
from Gravity Hill Mystery and Shrink-and-Grow Mystery.

5. How To Verify Successful Detection of Type B Dark Matter in Italy and in Minnesota?

The remaining important question is whether those two laboratories in Italy and Minnesota are so lucky to
have their detectors intercept the streams of very high density Type B dark Matter.

This important question can be answered by simple tests for several important signatures of high density
Type B dark Matter as described in the following subsections.

5.1 First Signature of Extreme High Density Type B Dark Matter - Significant Abnormal Local Gravity

One of several important signatures of the narrow stream of extreme high density Type B dark matter is the
existence of significant abnormal local gravity near the narrow stream of extreme high density Type B dark
matter oscillating in earth gravity well. Therefore, my theory predicts existence of significant abnormal local
gravity near the detectors in those two deep underground laboratories in Italy and in Minnesota.

It is then important to test for the existence of significant abnormal local gravity near the detector locations in
those two deep underground laboratories in Italy and in Minnesota. Six methods for testing for existence of
significant abnormal local gravity are described in my two Web Pages (1) and (2) listed above.

5.2. Shrink-and-Grow Mystery

The second important signature is that high density Type B dark matter shrinks the space by a few percent in
its vicinity as described in my Web Page (6):

Web Page (6): http://
www.shltrip.com/Space_Shrinking_Capability_of_Dark_Matter.html

The percentage shrinking of space decrease as the distance increase away from the narrow stream of high
density Type B dark matter. Such distance dependent of space shrinking can be tested by the Shrink-and-
Grow Mystery demonstration as described in my Web Page (6).

It is then important to test for the distance dependence of space shrinking in those two deep underground
laboratories in Italy and in Minnesota as one of the critical verification tests for the direct detection of Type B
high density dark matter in those two deep underground laboratories. Such distance dependence of space
shrinking manifests as the well known Shrink-and-Grow Mystery as described in my Web Page (6).


5.3. Effect of High Density Dark Matter on Human Being and Other Animals

When standing near or inside the Mystery House which is a few feet from the center of the Mystery Spot
Area, many visitors feel seasick, or motion sickness or nausea or dizzy as described on Page 15 in
here.
Some other people hear ringing in their ears when they are in Mystery Spot Area. Such effects on human
being can be tested by having several people standing near the dark matter detector in the deep underground
laboratories in Italy and in Min
nesota. If some of those people feel seasick, or motion sickness or nausea or
dizzy
or hear ringing in their ears, the following test is for those people to walk a distance of hundreds of feet
away from the dark matter detector to see if the ill feeling subsides or not. If the tested results indicate ill
feeling when people are near the dark matter detector and the ill feeling subsides substantially when those
people walk away from the dark matter detector, then it is a confirmation of the effects of the high density
Type B dark matter near the dark matter detector in the deep underground laboratories in Italy and in
Minnesota.

5.4. Strange Failures of Malfunction of Some Digital Electronic Devices

Another signature of the high density Type B dark matter is the strange failures or malfunction of some (but
not all) digital electronic devices when they are in a Mystery Spot Area as described in Section 8.3. But when
these digital devices work well and normally when they are moved out and away from the Mystery Spot area.
Therefore, this is another signature to test for the existence of high density Type B dark matter near the dark
matter detector in the deep underground laboratories in Italy and in Minnesota.


If the measured results confirm existence of
these signatures described in Sections 5.1 to 5.4, they are
strong confirmation and verification for successful direct detection of Type B high density dark matter in those
two
deep underground laboratories in Italy and in Minnesota.

The validated successful direct detection of Type B dark matter by human being for the first time will be a
major milestone and accomplishment in modern science.

6. How can Fountain of Type B high density dark matter stays steadily at the special location of a Gravity Hill
or a Mystery Spot?

During my presentation on September 29, 2016 in Monmouth County Library, one important question raised
by the audience is "How can fountain of Type B high density dark matter stays steadily at the location of a
Gravity Hill or a Mystery Spot knowing that dark matter rarely interact
directly with ordinary matter?" The
answer to this important question is that it is not a solid and rigid nugget of high density dark matter. Instead,
the fountain of dark matter is the tip of a very long and narrow stream of Type B high density dark matter that
is trapped in earth gravity well and is oscillating in earth gravity well. More details are explained in Section 5
of Web Page (2) listed above.

7. Next Phase of More Advanced Dark Matter Experiments

Based on my theory, we know the locations of very high density Type B dark matter on earth at:

Hundreds of known Gravity Hills,
Several known Mystery Spots, and
Those two deep underground laboratories in Italy and in Minnesota

The next phase of more advanced dark matter experiments should be done at these special locations of
extreme high concentration of Type B dark matter, so that we have better chance to find out what Type B
dark matter is.

These special locations may be also important to investigate various unfamiliar processes, such as dark
radiation, dark force, dark light, fifth fundamental force, dark photon or other yet unknown processes
associated with Type B dark matter in the dark sector of universe.

On the other hand, there are some proposals to use the sodium iodide detectors, similar to that used in Italy
laboratory, in other locations to test the validity of claimed dark matter detection in Italy. From my viewpoint,
this is a wrong test. The critical factor is to be at the right LOCATION of extreme high density Type B dark
matter, not the detector material, for successful detection and investigation of Type B dark matter.

8. More on Two Types of Dark Matter and Dark Interaction Processes in Dark Sector of Universe

8.1. Existence of Type B High Density Dark Matter on Earth

Although we cannot see dark matter directly, several problems and mysteries in several different astronomy
observations all point to the existence of Type A low density dark matter in galaxy dark matter halo which has
been attracting the attention of most scientists working on dark matter research.

In addition to the low density dark matter, several pioneer scientists have also explored and proposed dark
radiation, dark force, dark light, fifth fundamental force, dark photon or other yet unfamiliar processes in the
dark sector of universe. These unfamiliar processes in the dark sector of the universe are important for the
existence of Type B high density dark matter.

On the other hand, My 23-year research on gravity mysteries at Gravity Hills and in Mystery Spots on earth
indicates that very high concentration of Type B dark matter exist at many special locations of Gravity Hills
and Mystery Spots on earth.

8.2. Preliminary Experimental Findings of Previously Unknown Force Carrier Boson

The results of two recent experiments provide preliminary hints of existence of previously unknown force
carrier boson that may interact with dark matter and of previously unknown interactive processes in the dark
sector of universe:

8.2.1. Hungarian Experiment

The recent (2015) experiments by Professor Attila Krasznahorkay and his colleagues at the Hungarian
Academy of Sciences’s Institute for Nuclear Research in Debrecen, Hungary provide a preliminary hint of
experimental findings of dark photon or new force carrier boson. A follow up analysis of the Hungarian
experimental results by
Professor Jonathan Feng and his colleagues at the University of California, Irvine
indicates that this could be the signature of a previously unknown fifth fundamental force of nature.

8.2.2. Large Hadron Collider (LHC) Experiment

Professor Bruce Mellado, the leader and his team of 35 scientists of High Energy Physics Group (HEP) at
University of the Witwatersrand from South Africa have been working on the experiments at the Large Hadron
Collider (LHC) at the European Organisation for Nuclear Research (CERN), on the French-Swiss border.
Based on a number of features and peculiarities of the data reported by the experiments at the LHC and
collected up to the end of 2012, the Wits HEP group in collaboration with scientists in India and Sweden
formulated the Madala hypothesis. This hypothesis describes an entirely new boson, named as the Madala
boson, that interacts with dark matter. When the experiment at the LHC was repeated in 2015 and 2016, the
team found the findings lined up with those which had triggered their hypothesis.

CERN now has a new
NA64 project to run a new experiment to try to detect dark photons.


8.3. Failures of Some Digital Electronic Devices in Mystery Spot Areas and Dark Interaction Processes

Many visitors (including me) have reported their strange experience of failures or malfunction of some (but not
all) of their digital electronic devices when they are in a Mystery Spot area. These digital electronic devices
work perfectly when they are outside of the area of the Mystery Spot, but do not work properly when they
are inside the Mystery Spot area.

8.3.1. Failure of Digital Body Weight Scale

For example, in my second visit of the Mystery Spot in Santa Cruz, California in 2012, my younger son, living
in Mountain View, California, responded to my request, brought his digital body weight scale from his
apartment to Mystery Spot intended for our simple experiment to measure my body weight on the two
standing positions of Shrink-and-Grow Mystery demonstration platform. However, that digital body weight
scale did not work in the Mystery Spot. It is very strange in that the digital body wight scale works properly in
my son's apartment in Mountain View both before and after our trip to Mystery Spot. We still do not know
why that digital body weight scale did not work in the Mystery Spot.

On the other hand, in my third visit of Mystery Spot in Santa Cruz on On January 11, 2016, we brought an
analog body weight scale for
my body weight measurements, the analog body weight scale worked well with
no problem.

8.3.2. Strange Behavior of GPS Navigator

I had another experience of very strange behavior of my portable GPS navigator when it was near the area of
a Mystery Spot, known as Cosmos Mystery Area, in South Dakota. It is described in more details in Section 8
on my web page at:

http://
www.shltrip.com/Additional_Information_On_Gravity_Hills.htm


8.3.3. Trouble with a Magnetometer

A gentleman with the name of Trento brought a magnetometer to do some measurements and testing in
Oregon Vortex. Mr. Trento complained of not being able to calibrate his machine back to a zero setting when
they are in certain area in the Oregon Vortex area. Evidently, such zero setting needs to be done after each
result in order to take a new reading. The instrument worked well otherwise, but such trouble happened only
in certain area in Oregon Vortex as described on Page 8 in
here.


Several other people have also reported similar failures or malfunction of their digital electronic devices when
they are in a Mystery Spot area. Some more examples can be seen
here,  here,  here and Page 8 in here.
By digging into visitors' reports on Internet, one may see more examples of such strange failures of digital
electronic devices in a Mystery Spot area.

Nobody knows or understands the reason(s) for such strange failures or malfunction of such digital electronic
devices. However, such strange failures or malfunction of some digital electronic devices in a Mystery Spot
area may be providing us a preliminary hint that there may be some yet unknown "dark" interaction processes
between Type B high density dark matter and these digital electronic devices in a Mystery Spot area. A
possible preliminary explanation is in Section 6.5 of my Web Page (2).

Therefore, the high concentration of Type B dark matter at these special locations of Mystery Spot areas and
Gravity Hills may be providing the golden opportunity for scientists to conduct next phase of more advanced
dark matter experiments to investigate the characteristics of dark matter and of the "dark" interaction
processes in the dark sector of universe.

8.4. Type B Dark Matter and Cycle of Mass Extinction on Earth

Mass extinctions on earth such as the one that wiped out the dinosaurs seem to happen with regularity,
pointing to possible cosmic causes.
Theoretical physicists Lisa Randall and Matthew Reece, of Harvard
University in Cambridge, Massachusetts, propose a mechanism for this regularity of about 35 million years. In
their proposal, there is a disk of higher density dark matter (i.e., Type B dark matter) that cuts the Milky Way
Galaxy into a top and a bottom half like the two bread slices in a sandwich. As the Solar system follows the
swirling motion of the Galaxy's arms, circling around the galactic centre, it also moves up and down,
periodically crossing this disk of Type B dark matter. Professors Randall and Reece suggest that as the
Solar system oscillates up and down, it crosses a denser layer of dark matter (i.e., Type B dark matter)
causing a gravitational push and pull that disturbs comets in the Oort cloud. In other words, the Solar
System's periodic passage through a 'dark disk' on the galactic plane triggers comet bombardments that
causes periodic mass extinctions on earth.

9. Concluding Remark

The experimental results, the hypothesis and the theories on this web page help us understand that:

(I) not all dark matters are Type A low density dark matter.

(II) a fraction of dark matter exists as very high density Type B dark matter at those special locations of
Gravity Hills and Mystery Spots on earth, and somewhere else such as the dark disk on the plane of Milky
Way Galaxy as described by Professor Lisa Randall.

(III) the concepts of dark radiation, dark light, and dark photon in dark sector of universe as proposed by
Professor Lisa Randall of Harvard University, Professor Sean Carroll at the California Institute of Technology,
and several other scientists are not just intellectual curiosity, but are essential processes for the existence of
Type B high density dark matter at hundreds of Gravity Hills and several Mystery Spots on earth and
somewhere else.

(IV) Many problems and mysteries observed in several independent astronomy observations all point
consistently to the existence of dark matter in galaxy dark matter halo.

(V) Many mysteries observed on hundreds of Gravity Hills and several Mystery Spots on earth all point
consistently to the existence of Type B high density dark matter at these special locations on earth and may
be somewhere else.

(VI) Type B dark matter may have been detected successfully already in the deep underground laboratories
in Italy and in Minnesota, USA, although the necessary follow up verification tests in these two deep
underground laboratories have yet to be done.

(VII) There are at least two different types of dark matter, thus we are making some progress in our
preliminary understanding of characteristics of dark matter and of their dark interaction processes in the dark
sector of the universe.

(VIII) It is important for the science community to recognize the importance of these special locations of
Gravity Hills and Mystery Spots for next phase of more advanced dark matter experiments so that we will
have better chance to find out what dark matter is, the space shrinking characteristics of dark matter and its
relation to dark energy and those unfamiliar processes of dark radiation, dark force, dark light, fifth force,
dark photos, etc. in the dark sector of universe.
Abstract

The deep underground laboratories in Italy and in Minnesota have detected Type B high density dark matter
successfully. But none of the twelve or more deep underground laboratories have detected Type A low
density dark matter. It is noted that there are two different types of dark matter: Type A low density dark
matter in galaxy dark matter halo and Type B high density dark matter at the special locations of Gravity Hills
and Mystery Spot areas on earth and somewhere else.

Twelve or more deep underground laboratories have been set up in various locations of the world and
running for many years in a race to try to detect dark matter. However, ten or more deep underground
laboratories keep on coming up empty handed. But the deep underground laboratory in Gran Sasso mountain
in Italy claims that they have detected dark matter with a signature of annual modulation (seasonal variation)
in the detected signal. Another deep underground laboratory in Soudan, Minnesota, USA has also detected
similar signal with a similar signature of annual modulation.

It has been a serious dilemma in science community for many years because the claimed detections of dark
matter in Italy and in Minnesota, USA are NOT repeatable in ten or more deep underground laboratories in
other parts of the world. Many scientists question the validity of the claim that dark matters have been
detected in Italy and Minnesota. Many scientists think what the laboratories in Italy and Minnesota, USA have
detected are false signals due to problems in detection systems.

On the other hand, my 23-year research on gravity mysteries on Gravity Hills and Mystery Spots on earth
enables me to bring in an out-of-box thinking to resolve this serious dilemma. My different background and
experience enable me to show that: (1) What have been detected successfully in Italy and in Minnesota, USA
are Type B high density dark matter, and (2) None of these deep underground laboratories have detected
Type A dark matter because Type A dark matter particles may be super-heavy dark matter particles which
may be much heavier than the popular assumption of WIMP by many orders of magnitude.

F
our verification tests to test for four signatures of high density type B dark matter are proposed in Section 5
to verify successful direct detection of Type B dark matter in the deep underground laboratories in Italy and
in Minnesota
.

More detailed explanations and supporting evidences are in the following.


Note: I started presenting this Web Page (3) on August 29, 2016. I have been revising and updating this web
page from time to time as I gain more insight and relevant information from my ongoing research on this
project. Most recent update of this web page was on March
26, 2017.  As of December 15, 2016 this web
page has been accessed at least 336 times by my friends and strangers all over the world.

Note: Dr. Sing Lin presented a talk entitled "Great Mysteries of Dark Matter in Astronomy and on Earth" in a
meeting in Monmouth County Library in Manalapan, New Jersey, USA on September 29, 2016. This
presentation describes (1) the highlights of the ongoing global research and experiments in astronomy and on
earth on dark matter and (2) the highlights of the 23-year research by Dr. Sing Lin on very high
concentrations of dark matter at the special locations of Gravity Hills and Mystery Spots on earth and of their
important implications to the direct detection of dark matter on earth.  This meeting was co-sponsored by
IEEE (Institute of Electrical and Electronics Engineers) New Jersey Coast Life Member Group and IEEE
New Jersey Coast EMC/VT/AP Chapter.

The PowerPoint file presented by Dr. Sing Lin on September 29, 2016 is in the following: