Particle Physics - Summary Data Tables

201 Pages·2006·1.163 MB·English

Citation: W.-M.Yaoetal. (ParticleDataGroup),J.Phys.G33,1(2006)(URL:http://pdg.lbl.gov)
GGGGAAAAUUUUGGGGEEEE AAAANNNNDDDD HHHHIIIIGGGGGGGGSSSS BBBBOOOOSSSSOOOONNNNSSSS
γγγγ PC −−
I(J ) = 0,1(1 )
Mass m < 6×10−17 eV
Charge q < 5×10−30 e
Mean life τ = Stable
gggg
P −
I(J ) = 0(1 )
oooorrrr gggglllluuuuoooonnnn
Mass m = 0 [a]
SU(3) color octet
WWWW J = 1
Charge = ±1 e
Mass m = 80.403 ± 0.029 GeV
m − m = 10.785 ± 0.029 GeV
Z W
m − m = −0.2 ± 0.6 GeV
W+ W−
Full width Γ = 2.141 ± 0.041 GeV
(cid:1) (cid:2)
N = 15.70 ± 0.35
(cid:1) π± (cid:2)
N = 2.20 ± 0.19
(cid:1) K(cid:2)±
N = 0.92 ± 0.14
(cid:1) p (cid:2)
N = 19.41 ± 0.15
charged
−
W modes are charge conjugates of the modes below.
p
WWWW++++ DDDDEEEECCCCAAAAYYYYMMMMOOOODDDDEEEESSSS Fraction (Γ /Γ) Confidence level (MeV/c)
i
(cid:2)+ν [b] (10.80± 0.09)% –
e+ν (10.75± 0.13)% 40201
µ+ν (10.57± 0.15)% 40201
τ+ν (11.25± 0.20)% 40182
hadrons (67.60± 0.27)% –
π+γ < 8 ×10−5 95% 40201
D+γ < 1.3 ×10−3 95% 40177
s
cX (33.4 ± 2.6 )% –
cs (31 +−1113 )% –
invisible [c] ( 1.4 ± 2.8 )% –
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ZZZZ J = 1
Charge = 0
Mass m = 91.1876 ± 0.0021 GeV [d]
Full width Γ = 2.4952 ± 0.0023 GeV
(cid:3) (cid:4)
Γ (cid:2)+(cid:2)− = 83.984 ± 0.086 MeV [b]
(cid:3) (cid:4)
Γ invisible = 499.0 ± 1.5 MeV [e]
(cid:3) (cid:4)
Γ hadrons = 1744.4 ± 2.0 MeV
(cid:3) (cid:4) (cid:3) (cid:4)
Γ µ+µ− /Γ e+e− = 1.0009 ± 0.0028
(cid:3) (cid:4) (cid:3) (cid:4)
Γ τ+τ− /Γ e+e− = 1.0019 ± 0.0032 [f]
AAAAvvvveeeerrrraaaaggggeeee cccchhhhaaaarrrrggggeeeedddd mmmmuuuullllttttiiiipppplllliiiicccciiiittttyyyy
(cid:1) (cid:2)
N = 20.76 ± 0.16 (S = 2.1)
charged
CCCCoooouuuupppplllliiiinnnnggggssss ttttoooo lllleeeeppppttttoooonnnnssss
g(cid:2) = −0.03783 ± 0.00041
V
g(cid:2) = −0.50123 ± 0.00026
A
gνe = 0.53 ± 0.09
ν
g µ = 0.502 ± 0.017
AAAAssssyyyymmmmmmmmeeeettttrrrryyyy ppppaaaarrrraaaammmmeeeetttteeeerrrrssss [g]
A = 0.1515 ± 0.0019
e
Aµ = 0.142 ± 0.015
Aτ = 0.143 ± 0.004
A = 0.90 ± 0.09
s
A = 0.670 ± 0.027
c
A = 0.923 ± 0.020
b
CCCChhhhaaaarrrrggggeeee aaaassssyyyymmmmmmmmeeeettttrrrryyyy ((((%%%%)))) aaaatttt ZZZZ ppppoooolllleeee
A(0(cid:2)) = 1.71 ± 0.10
FB
A(0u) = 4 ± 7
FB
A(0s) = 9.8 ± 1.1
FB
A(0c) = 7.07 ± 0.35
FB
A(0b) = 9.92 ± 0.16
FB
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Scale factor/ p
ZZZZ DDDDEEEECCCCAAAAYYYYMMMMOOOODDDDEEEESSSS Fraction (Γ /Γ) Confidence level (MeV/c)
i
e+e− ( 3.363 ±0.004 )% 45594
µ+µ− ( 3.366 ±0.007 )% 45594
τ+τ− ( 3.370 ±0.008 )% 45559
(cid:2)+(cid:2)− [b] ( 3.3658±0.0023)% –
invisible (20.00 ±0.06 )% –
hadrons (69.91 ±0.06 )% –
(uu+cc)/2 (11.6 ±0.6 )% –
(dd+ss+bb)/3 (15.6 ±0.4 )% –
cc (12.03 ±0.21 )% –
bb (15.12 ±0.05 )% –
bbbb ( 3.6 ±1.3 )×10−4 –
ggg < 1.1 % CL=95% –
π0γ < 5.2 ×10−5 CL=95% 45594
ηγ < 5.1 ×10−5 CL=95% 45592
ωγ < 6.5 ×10−4 CL=95% 45590
η(cid:1)(958)γ < 4.2 ×10−5 CL=95% 45589
γγ < 5.2 ×10−5 CL=95% 45594
γγγ < 1.0 ×10−5 CL=95% 45594
π±W∓ [h] < 7 ×10−5 CL=95% 10146
ρ±W∓ [h] < 8.3 ×10−5 CL=95% 10120
J/ψ(1S)X ( 3.51 +−00..2253 )×10−3 S=1.1 –
ψ(2S)X ( 1.60 ±0.29 )×10−3 –
χc1(1P)X ( 2.9 ±0.7 )×10−3 –
χc2(1P)X < 3.2 ×10−3 CL=90% –
Υ(1S) X +Υ(2S) X ( 1.0 ±0.5 )×10−4 –
+Υ(3S) X
Υ(1S)X < 4.4 ×10−5 CL=95% –
Υ(2S)X < 1.39 ×10−4 CL=95% –
Υ(3S)X < 9.4 ×10−5 CL=95% –
(D0/D0) X (20.7 ±2.0 )% –
±
D X (12.2 ±1.7 )% –
∗ ±
D (2010) X [h] (11.4 ±1.3 )% –
Ds1(2536)±X ( 3.6 ±0.8 )×10−3 –
DsJ(2573)±X ( 5.8 ±2.2 )×10−3 –
∗(cid:1) ±
D (2629) X searched for –
B+X ( 6.12 ±0.15 )% –
B0X ( 1.57 ±0.13 )% –
s
+
B X searched for –
c
+
Λ X ( 1.54 ±0.33 )% –
c
b-baryon X ( 1.51 ±0.26 )% –
anomalous γ+ hadrons [i] < 3.2 ×10−3 CL=95% –
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e+e−γ [i] < 5.2 ×10−4 CL=95% 45594
µ+µ−γ [i] < 5.6 ×10−4 CL=95% 45594
τ+τ−γ [i] < 7.3 ×10−4 CL=95% 45559
(cid:2)+(cid:2)−γγ [j] < 6.8 ×10−6 CL=95% –
qqγγ [j] < 5.5 ×10−6 CL=95% –
ννγγ [j] < 3.1 ×10−6 CL=95% 45594
e±µ∓ LF [h] < 1.7 ×10−6 CL=95% 45594
e±τ∓ LF [h] < 9.8 ×10−6 CL=95% 45576
µ±τ∓ LF [h] < 1.2 ×10−5 CL=95% 45576
pe L,B < 1.8 ×10−6 CL=95% 45589
pµ L,B < 1.8 ×10−6 CL=95% 45589
HHHHiiiiggggggggssss BBBBoooossssoooonnnnssss ———— HHHH0000 aaaannnndddd HHHH±±±±,,,, SSSSeeeeaaaarrrrcccchhhheeeessss ffffoooorrrr
HHHH0000 Mass m > 114.4 GeV, CL = 95%
HHHH0000 iiiinnnn SSSSuuuuppppeeeerrrrssssyyyymmmmmmmmeeeettttrrrriiiicccc MMMMooooddddeeeellllssss ((((mmmm <<<<mmmm ))))
1111 HHHH0000 HHHH0000
1111 2222
Mass m > 89.8 GeV, CL = 95%
AAAA0000 PPPPsssseeeeuuuuddddoooossssccccaaaallllaaaarrrr HHHHiiiiggggggggssss BBBBoooossssoooonnnn iiiinnnn SSSSuuuuppppeeeerrrrssssyyyymmmmmmmmeeeettttrrrriiiicccc MMMMooooddddeeeellllssss [k]
Mass m > 90.4 GeV, CL = 95% tanβ >0.4
HHHH±±±± Mass m > 79.3 GeV, CL = 95%
See the Particle Listings for a Note giving details of Higgs
Bosons.
HHHHeeeeaaaavvvvyyyy BBBBoooossssoooonnnnssss OOOOtttthhhheeeerrrr TTTThhhhaaaannnn
HHHHiiiiggggggggssss BBBBoooossssoooonnnnssss,,,, SSSSeeeeaaaarrrrcccchhhheeeessss ffffoooorrrr
AAAAddddddddiiiittttiiiioooonnnnaaaallll WWWW BBBBoooossssoooonnnnssss
W(cid:1) with standard couplings decaying to eν, µν
Mass m > 800 GeV, CL = 95%
W — right-handed W
R
Mass m > 715 GeV, CL = 90% (electroweak fit)
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AAAAddddddddiiiittttiiiioooonnnnaaaallll ZZZZ BBBBoooossssoooonnnnssss
(cid:1)
Z with standard couplings
SM
Mass m > 825 GeV, CL = 95% (pp direct search)
Mass m > 1500 GeV, CL = 95% (electroweak fit)
Z of SU(2) ×SU(2) ×U(1)
LR L R
(with g = g )
L R
Mass m > 630 GeV, CL = 95% (pp direct search)
Mass m > 860 GeV, CL = 95% (electroweak fit)
Zχ of SO(10) → SU(5)×U(1)χ (with gχ=e/cosθW)
Mass m > 690 GeV, CL = 95% (pp direct search)
Mass m > 781 GeV, CL = 95% (electroweak fit)
Zψ of E6 → SO(10)×U(1)ψ (with gψ=e/cosθW)
Mass m > 675 GeV, CL = 95% (pp direct search)
Mass m > 366 GeV, CL = 95% (electroweak fit)
Zη of E6 → SU(3)×SU(2)×U(1)×U(1)η (with gη=e/cosθW)
Mass m > 720 GeV, CL = 95% (pp direct search)
Mass m > 619 GeV, CL = 95% (electroweak fit)
SSSSccccaaaallllaaaarrrr LLLLeeeeppppttttooooqqqquuuuaaaarrrrkkkkssss
Mass m > 256 GeV, CL = 95% (1st generation, pair prod.)
Mass m > 298 GeV, CL = 95% (1st gener., single prod.)
Mass m > 202 GeV, CL = 95% (2nd gener., pair prod.)
Mass m > 73 GeV, CL = 95% (2nd gener., single prod.)
Mass m > 148 GeV, CL = 95% (3rd gener., pair prod.)
(See the Particle Listings for assumptions on leptoquark quan-
tum numbers and branching fractions.)
AAAAxxxxiiiioooonnnnssss ((((AAAA0000)))) aaaannnndddd OOOOtttthhhheeeerrrr
VVVVeeeerrrryyyy LLLLiiiigggghhhhtttt BBBBoooossssoooonnnnssss,,,, SSSSeeeeaaaarrrrcccchhhheeeessss ffffoooorrrr
The standard Peccei-Quinn axion is ruled out. Variants with reduced
couplings or much smaller masses are constrained by various data.
The Particle Listings in the full Review contain a Note discussing
axion searches.
The best limit for the half-life of neutrinoless double beta decay with
Majoron emission is > 7.2×1024 years (CL = 90%).
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NOTES
[a]Theoretical value. A mass as large as a few MeV may not be precluded.
[b] (cid:2) indicates each type of lepton (e, µ, and τ), not sum over them.
[c] This represents the width for the decay of the W boson into a charged
particle with momentum below detectability, p< 200 MeV.
[d] The Z-boson mass listed here corresponds to a Breit-Wigner resonance
parameter. It lies approximately 34 MeV above the real part of the posi-
tion of the pole (in the energy-squared plane) in the Z-boson propagator.
[e]This partial width takes into account Z decays into νν and any other
possible undetected modes.
[f] This ratio has not been corrected for the τ mass.
[g]Here A ≡ 2g g /(g2 +g2).
V A V A
[h] The value is for the sum of the charge states or particle/antiparticle
states indicated.
[i]See the Z Particle Listings for the γ energy range used in this measure-
ment.
[j]For mγγ = (60 ± 5) GeV.
[k]The limits assume no invisible decays.
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LLLLEEEEPPPPTTTTOOOONNNNSSSS
eeee J = 1
2
Mass m = (548.57990945 ± 0.00000024)×10−6 u
M(cid:1) ass m = 0.5(cid:1)1099892 ± 0.00000004 MeV
(cid:1)(cid:1)me+ − me−(cid:1)(cid:2)(cid:1)/m < 8×10−9, CL = 90%
(cid:1)q + q (cid:1) e < 4×10−8
e+ e−
Magnetic moment µ = 1.0011596521859 ± 0.0000000000038 µ
B
(g − g ) / g = (−0.5 ± 2.1)×10−12
e+ e− average
Electric dipole moment d = (0.07 ± 0.07)×10−26 ecm
Mean life τ > 4.6×1026 yr, CL = 90% [a]
µµµµ
J = 1
2
Mass m = 0.1134289264 ± 0.0000000030 u
Mass m = 105.658369 ± 0.000009 MeV
Mean life τ = (2.19703 ± 0.00004)×10−6 s
τ /τ = 1.00002 ± 0.00008
µ+ µ−
cτ = 658.654 m
Magnetic moment µ = 1.0011659208 ± 0.0000000006 eh¯/2mµ
(g − g ) / g = (−2.6 ± 1.6)×10−8
µ+ µ− average
Electric dipole moment d = (3.7 ± 3.4)×10−19 ecm
DDDDeeeeccccaaaayyyy ppppaaaarrrraaaammmmeeeetttteeeerrrrssss [b]
ρ = 0.7509 ± 0.0010
η = 0.001 ± 0.024 (S = 2.0)
δ = 0.7495 ± 0.0012
ξPµ = 1.003 ± 0.008 [c]
ξPµδ/ρ > 0.99682, CL = 90% [c]
ξ(cid:1) = 1.00 ± 0.04
ξ(cid:1)(cid:1) = 0.7 ± 0.4
α/A = (0 ± 4)×10−3
α(cid:1)/A = (0 ± 4)×10−3
β/A = (4 ± 6)×10−3
β(cid:1)/A = (1 ± 5)×10−3
η = 0.02 ± 0.08
µ+ modes are charge conjugates of the modes below.
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p
µµµµ−−−− DDDDEEEECCCCAAAAYYYYMMMMOOOODDDDEEEESSSS Fraction (Γ /Γ) Confidence level (MeV/c)
i
e−νeνµ ≈100% 53
e−νeνµγ [d] (1.4±0.4)% 53
e−νeνµe+e− [e] (3.4±0.4)×10−5 53
LLLLeeeeppppttttoooonnnn FFFFaaaammmmiiiillllyyyy nnnnuuuummmmbbbbeeeerrrr ((((LLLLFFFF)))) vvvviiiioooollllaaaattttiiiinnnngggg mmmmooooddddeeeessss
e−νeνµ LF [f] < 1.2 % 90% 53
e−γ LF < 1.2 ×10−11 90% 53
e−e+e− LF < 1.0 ×10−12 90% 53
e−2γ LF < 7.2 ×10−11 90% 53
ττττ J = 1
2
Mass m = 1776.99+0.29 MeV
−0.26
(m − m )/m < 3.0×10−3, CL = 90%
τ+ τ− average
Mean life τ = (290.6 ± 1.0)×10−15 s
cτ = 87.11 µm
Magnetic moment anomaly > −0.052 and < 0.013, CL = 95%
Re(dτ) = −0.22 to 0.45×10−16 ecm, CL = 95%
Im(dτ) = −0.25 to 0.008×10−16 ecm, CL = 95%
WWWWeeeeaaaakkkk ddddiiiippppoooolllleeee mmmmoooommmmeeeennnntttt
Re(dw) < 0.50×10−17 ecm, CL = 95%
τ
Im(dw) < 1.1×10−17 ecm, CL = 95%
τ
WWWWeeeeaaaakkkk aaaannnnoooommmmaaaalllloooouuuussss mmmmaaaaggggnnnneeeettttiiiicccc ddddiiiippppoooolllleeee mmmmoooommmmeeeennnntttt
Re(αw) < 1.1×10−3, CL = 95%
τ
Im(αw) < 2.7×10−3, CL = 95%
τ
DDDDeeeeccccaaaayyyy ppppaaaarrrraaaammmmeeeetttteeeerrrrssss
See the τ Particle Listings for a note concerning τ-decay parameters.
ρτ(e or µ) = 0.745 ± 0.008
ρτ(e) = 0.747 ± 0.010
ρτ(µ) = 0.763 ± 0.020
ξτ(e or µ) = 0.985 ± 0.030
ξτ(e) = 0.994 ± 0.040
ξτ(µ) = 1.030 ± 0.059
ητ(e or µ) = 0.013 ± 0.020
ητ(µ) = 0.094 ± 0.073
(δξ)τ(e or µ) = 0.746 ± 0.021
(δξ)τ(e) = 0.734 ± 0.028
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(δξ)τ(µ) = 0.778 ± 0.037
ξτ(π) = 0.993 ± 0.022
ξτ(ρ) = 0.994 ± 0.008
ξτ(a ) = 1.001 ± 0.027
1
ξτ(all hadronic modes) = 0.995 ± 0.007
τ+ modes are charge conjugates of the modes below. “h±” stands for
π± or K±. “(cid:3)” stands for e or µ. “Neutrals” stands for γ’s and/or π0’s.
Scale factor/ p
ττττ−−−− DDDDEEEECCCCAAAAYYYYMMMMOOOODDDDEEEESSSS Fraction (Γ /Γ) Confidence level (MeV/c)
i
MMMMooooddddeeeessss wwwwiiiitttthhhh oooonnnneeee cccchhhhaaaarrrrggggeeeedddd ppppaaaarrrrttttiiiicccclllleeee
particle− ≥ 0 neutrals ≥ 0K0ντ (85.33±0.08)% S=1.4 –
(“1-prong”)
particle− ≥ 0 neutrals ≥ 0K0ντ (84.69±0.09)% S=1.4 –
L
µ−νµντ [g] (17.36±0.05)% 885
µ−νµντγ [e] ( 3.6 ±0.4 )×10−3 885
e−νeντ [g] (17.84±0.05)% 888
e−νeντγ [e] ( 1.75±0.18)% 888
h− ≥ 0K0 ντ (12.14±0.07)% S=1.1 883
L
h−ντ (11.59±0.06)% S=1.1 883
π−ντ [g] (10.90±0.07)% S=1.1 883
K−ντ [g] ( 6.91±0.23)×10−3 820
h− ≥ 1 neutralsντ (37.05±0.12)% S=1.3 –
h− ≥ 1π0ντ(ex.K0) (36.51±0.12)% S=1.3 –
h−π0ντ (25.95±0.10)% S=1.1 878
π−π0ντ [g] (25.50±0.10)% S=1.1 878
π−π0non-ρ(770)ντ ( 3.0 ±3.2 )×10−3 878
K−π0ντ [g] ( 4.52±0.27)×10−3 814
h− ≥ 2π0ντ (10.81±0.14)% S=1.5 –
h−2π0ντ ( 9.47±0.12)% S=1.3 862
h−2π0ντ(ex.K0) ( 9.31±0.12)% S=1.3 862
π−2π0ντ(ex.K0) [g] ( 9.25±0.12)% S=1.3 862
π−2π0ντ(ex.K0), < 9 ×10−3 CL=95% 862
scalar
π−2π0ντ(ex.K0), < 7 ×10−3 CL=95% 862
vector
K−2π0ντ(ex.K0) [g] ( 5.8 ±2.3 )×10−4 796
h− ≥ 3π0ντ ( 1.33±0.07)% S=1.1 –
h− ≥ 3π0ντ(ex. K0) ( 1.25±0.07)% S=1.1 –
h−3π0ντ ( 1.17±0.08)% S=1.1 836
π−3π0ντ(ex.K0) [g] ( 1.04±0.08)% S=1.1 836
K−3π0ντ(ex.K0, [g] ( 4.2 ±2.1 )×10−4 766
η)
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h−4π0ντ(ex.K0) ( 1.6 ±0.4 )×10−3 800
h−4π0ντ(ex.K0,η) [g] ( 1.0 ±0.4 )×10−3 800
K− ≥ 0π0 ≥ 0K0 ≥ 0γ ντ ( 1.57±0.04)% S=1.1 820
K− ≥ 1 (π0 or K0 or γ) ντ ( 8.78±0.33)×10−3 –
MMMMooooddddeeeessss wwwwiiiitttthhhh KKKK0000’’’’ssss
K0 (particles)−ντ ( 9.27±0.34)×10−3 S=1.1 –
S
h−K0ντ ( 1.05±0.04)% S=1.1 812
π−K0ντ [g] ( 9.0 ±0.4 )×10−3 S=1.1 812
π−K0 < 1.7 ×10−3 CL=95% 812
(non-K∗(892)−)ντ
K−K0ντ [g] ( 1.53±0.16)×10−3 737
K−K0 ≥ 0π0ντ ( 3.07±0.24)×10−3 737
h−K0π0ντ ( 5.3 ±0.4 )×10−3 794
π−K0π0ντ [g] ( 3.8 ±0.4 )×10−3 794
K0ρ−ντ ( 2.2 ±0.5 )×10−3 612
K−K0π0ντ [g] ( 1.54±0.20)×10−3 685
π−K0 ≥ 1π0ντ ( 3.2 ±1.0 )×10−3 –
π−K0π0π0ντ ( 2.6 ±2.4 )×10−4 763
K−K0π0π0ντ < 1.6 ×10−4 CL=95% 619
π−K0K0ντ ( 1.60±0.31)×10−3 S=1.2 682
π−K0 K0 ντ [g] ( 2.4 ±0.5 )×10−4 682
S S
π−K0 K0ντ [g] ( 1.12±0.30)×10−3 S=1.2 682
S L
π−K0K0π0ντ ( 3.1 ±2.3 )×10−4 614
π−K0 K0 π0ντ < 2.0 ×10−4 CL=95% 614
S S
π−K0 K0π0ντ ( 3.1 ±1.2 )×10−4 614
S L
K0h+h−h− ≥ 0 neutrals ντ < 1.7 ×10−3 CL=95% 760
K0h+h−h−ντ ( 2.3 ±2.0 )×10−4 760
MMMMooooddddeeeessss wwwwiiiitttthhhh tttthhhhrrrreeeeeeee cccchhhhaaaarrrrggggeeeedddd ppppaaaarrrrttttiiiicccclllleeeessss
h−h−h+ ≥ 0 neutrals ≥ 0K0ντ (15.22±0.09)% S=1.4 861
L
h−h−h+ ≥ 0 neutrals ντ (14.59±0.08)% S=1.4 861
(ex. K0 → π+π−)
S
(“3-prong”)
h−h−h+ντ ( 9.87±0.08)% S=1.3 861
h−h−h+ντ(ex.K0) ( 9.51±0.08)% S=1.3 861
h−h−h+ντ(ex.K0,ω) ( 9.47±0.08)% S=1.3 861
π−π+π−ντ ( 9.33±0.08)% S=1.3 861
π−π+π−ντ(ex.K0) ( 9.02±0.08)% S=1.3 861
π−π+π−ντ(ex.K0), < 2.4 % CL=95% 861
non-axial vector
π−π+π−ντ(ex.K0,ω) [g] ( 8.99±0.08)% S=1.3 861
h−h−h+ ≥ 1 neutrals ντ ( 5.34±0.06)% S=1.1 –
h−h−h+ ≥ 1π0ντ(ex. K0) ( 5.06±0.06)% S=1.1 –
h−h−h+π0ντ ( 4.73±0.07)% S=1.2 834
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