query: Are neutrons an actual particle?
positive_passages.docid: 142916
positive_passages.text: Proton: 2 up, 1 down quark, Neutron: 2 down, 1 up, how can Neutron: proton + electron?
negative_passages.docid: 81986
negative_passages.text: What is more fundamental, fields or particles?
negative_passages.docid: 70008
negative_passages.text: Virtual Particles real? Virtual particles create a universe?
negative_passages.docid: 79571
negative_passages.text: How can the nucleus of an atom be in an excited state?
negative_passages.docid: 88637
negative_passages.text: Why can a particle decay into two photons but not one?
negative_passages.docid: 112965
negative_passages.text: Are virtual particles limited by the speed of light?
negative_passages.docid: 129003
negative_passages.text: Is there any way to attract or repel neutrons?
negative_passages.docid: 123657
negative_passages.text: Why do physicists think that the electron is an elementary particle?
negative_passages.docid: 86967
negative_passages.text: The concept of particle in QFT
negative_passages.docid: 140370
negative_passages.text: Why don't neutrons cluster on their own?
negative_passages.docid: 17339
negative_passages.text: Is the wave-particle duality a real duality?
negative_passages.docid: 39244
negative_passages.text: References on the non-compositeness of the known elementary particles
negative_passages.docid: 145548
negative_passages.text: Are W & Z bosons virtual or not?
negative_passages.docid: 149215
negative_passages.text: Does a particle annihilate only with its antiparticle? If yes, why?
negative_passages.docid: 74931
negative_passages.text: Are holes a fundamental particle? Are they a real thing or just a construct?
negative_passages.docid: 76637
negative_passages.text: Why aren't particles constantly "measured" by the whole universe?
negative_passages.docid: 115490
negative_passages.text: Is particle superposition reflected in the particle's gravitational footprint?