Anomalies
in
High Energy Physics

Anomaly

Significance

Reference

Current/Future Experiment

Possible Solution

Muon g-2

4.2 σ

0602035,2006.04822,2104.03281

Fermilab,J-PARC

[...]

Flavor phys

LFUV in B-decays

2-5 σ

1909.12524

LHCb, Belle II

[...]

Cabibbo angle

~3 σ

PDG

[...]

LFUV in tau decay

~2 σ

PDG

[...]

Kπ puzzle

>8 σ

2012.12789

[...]

Multileptons@LHC

3-5 σ

1901.05300,1912.00699

LHC, HL-LHC

[...]

Top forward-backward asymmetry(Tevatron)

2-3 σ

1207.0364, 1211.1003

HL-LHC

[...]

Mass of W boson

7 σ

Science

[...]

Neutrino

LSND

6.1 σ

0104049

SBN,JSNS2

[...]

MiniBooNE

2006.16883

NOvA vs T2K

~2 σ

Neutrino 2020

[...]

IceCube HESE vs TG

~2 σ

1805.05950, 2011.03545

[...]

ANITA upgoing events

~2 σ

2010.02869

[...]

SHALON

0903.4654

[...]

Neutron lifetime

4.4 σ

PDG

[...]

8Be transition

7.2 σ

1910.10459

[...]

DM direct detection exp

DAMA/LIBRA

12.9 σ

1907.06405

[...]

XENON1T e--recoil

2-3 σ

2006.09721

[...]

Cosmic ray excess

PAMELA, Fermi-LAT, ATIC, AMS

3-5 σ

0810.4995, 0905.0025,

Nature, Phys.Rep.

[...]

Galactic center, halo, interstellar medium

Fermi-LAT GC 𝛾-ray excess

2-3 σ

1704.03910

[...]

3.5 keV X-ray line

4 σ

2008.02283

[...]

511 keV 𝛾-ray line

58 σ

1512.00325

[...]

Early Universe

EDGES 21cm spectrum

3.8 σ

1810.05912

[...]

Primordial 7Li problem

4-5 σ

1203.3551

[...]

Hubble tension

>5 σ

2008.11284,2112.04510

[...]

NANOGRAV

>>5 σ

2009.04496

[...]

Fast Radio Bursts

>>5 σ

1906.05878

[...]

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