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11 Dec 2023: Bc J/ψeν̄e. W. b. Bc c̄. e. ν̄e. c. c̄ J/ψ. ... t̄. b. gW Vtb. between quarks differing by one family are “Cabibbo Suppressed”.

6 Dec 2023: e.g. : two possible exchanged gluons. bb. b b. e.g. : only one possible exchanged gluon. ... b b. gr. g r. 346 / 604. Not examinable. Not examinable.

9 Apr 2023: gluons do not have equal parts r, b, g, so carry colour (e.g. ... g. q. q. q. q. αs. αs. r. rb. b. b r̄ r b̄.

6 Dec 2023: r r. b b. Other configurations where quarks don’t change colour •Only matrices with non-zero entries in 11 and 33 position are involved. ... e.g. : two possible exchanged gluons. bb. b b. e.g. : only one possible exchanged gluon.

30 May 2023: m(A,Z) = Zmp (A Z)mn B. B = aV A aSA2/3 acZ. ... Prof. Tina Potter 13. Basic Nuclear Properties 20. Nuclear Size Mirror Nuclei115 B.

6 Dec 2023: r $ b; r $ g; b! g. SU(3)-colour symmetry is exact. ... r r. b b. Other configurations where quarks don’t change colour •Only matrices with non-zero entries in 11 and 33 position are involved.

23 Nov 2023: b bb. q qb. b. b. « Each jet will contain one b-hadron which will decay weakly« Because is small hadrons containing. ... fb. be–. e+. Z. Z f. fb. b. e. « The only way to distinguish.

4 Nov 2023: i if Ai Bi = 11 otherwise. 9>=. >;(by (49)). = s(A, B)d1Y. ... X. X2A. (AX )1 Y (AX ). =X. X2AA. (X )1 Y (X ). =X. X2A. (X )1 Y (X ) (since A A {A B, B 2 A} = A). =

4 Nov 2023: 34) () [(E m)A = ( p)B]. ()h(E m)( p)A = ( p)2B. ... pEm B. B. 8B. or, equivalently, we could say u+ = u 2 span{u1, u2} and u = v 2 span{v1, v2} where:.

4 Nov 2023: pEm B. B. 8B. or, equivalently, we could say u+ = u 2 span{u1, u2} and u = v 2 span{v1, v2} where:. ... X. X2A. (AX )1 Y (AX ). =X. X2AA. (X )1 Y (X ). =X. X2A. (X )1 Y (X ) (since A A {A B, B 2 A} = A). =