Bottom quarks have (by convention) a bottomness of −1 while bottom antiquarks have a bottomness of +1. The convention is that the flavour quantum number sign for the quark is the same as the sign of the electric charge (symbol Q) of that quark (in this case, Q = −1⁄3).
bottomness, physics, bottomness, symbol, using, prime, plain, used, already, baryon, number, beauty, flavour, quantum, number, reflecting, difference, between, number, bottom, antiquarks, number, bottom, quarks, that, present, particle, displaystyle, prime, bo. In physics bottomness symbol B using a prime as plain B is used already for baryon number or beauty is a flavour quantum number reflecting the difference between the number of bottom antiquarks nb and the number of bottom quarks nb that are present in a particle B n b n b displaystyle B prime n b n bar b Bottom quarks have by convention a bottomness of 1 while bottom antiquarks have a bottomness of 1 The convention is that the flavour quantum number sign for the quark is the same as the sign of the electric charge symbol Q of that quark in this case Q 1 3 As with other flavour related quantum numbers bottomness is preserved under strong and electromagnetic interactions but not under weak interactions For first order weak reactions it holds that D B 1 displaystyle Delta B prime pm 1 This term is rarely used Most physicists simply refer to the number of bottom quarks and the number of bottom antiquarks References editAnchordoqui L Halzen F 2009 Lessons in Particle Physics arXiv 0906 1271 physics ed ph nbsp This particle physics related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Bottomness amp oldid 1194781034, wikipedia, wiki, book, books, library,