45. Monte Carlo Particle Numbering Scheme

1

45. Monte Carlo Particle Numbering Scheme
Revised August 2023 by A. Buckley (Glasgow U.), F. Krauss (Durham U.), S. Navas (Granada U.)
and P. Richardson (Durham U.).
The Monte Carlo particle numbering scheme presented here is intended to facilitate interfacing
between matrix-element generators, event generators, detector simulators, and analysis packages
used in particle physics, and is widely accepted as the “industry standard”. The numbering scheme
was introduced in 1988 [1], and has since been revised and expanded in the light of new informationon hadronic resonances, and to encompass as yet undiscovered and hypothetical particles.1
The general form is a 7–digit number:±n nr nL nq1 nq2 nq3 nJ .
This encodes information about the particle’s spin, flavor content, and internal quantum numbers.
A 9–digit extension is used specifically for tetra- and penta-quark states, and a distinct 10-digit
scheme is used for encoding (hyper)nuclear states. The details are as follows:
1. Particles are given positive numbers, antiparticles negative numbers. The PDG convention
for mesons is used, so that K + and B + are particles.
2. Quarks and leptons are numbered consecutively starting from 1 and 11 respectively; to do
this they are first ordered by family and within families by weak isospin.
3. In composite quark systems (diquarks, mesons, and baryons) nq1−3 are quark numbers used
to specify the quark content, while the rightmost digit nJ = 2J + 1 gives the system’s spin
(except for the KS0 and KL0 ). The scheme does not cover particles of spin J > 4.
4. Diquarks have 4-digit numbers with nq1 ≥ nq2 and nq3 = 0.
5. The numbering of mesons is guided by the nonrelativistic (L–S decoupled) quark model, as
listed in Tables 15.2, 15.3, and 15.4.
(a) The numbers specifying the meson’s quark content conform to the convention nq1 = 0
and nq2 ≥ nq3 . The special case KL0 is the sole exception to this rule.
(b) The quark numbers of flavorless, light (u, d, s) mesons are: 11 for the member of theisotriplet (π 0 , ρ0 , . . .), 22 for the lighter isosinglet (η, ω, . . .), and 33 for the heavier isosinglet (η 0 , φ, . . .). Since isosinglet mesons are often large mixtures of uū + dd¯ and ss̄
states, 22 and 33 are assigned by mass and do not necessarily specify the dominant
quark composition.
(c) The special numbers 310 and 130 are given to the KS0 and KL0 respectively.
(d) The fifth digit nL is reserved to distinguish mesons of the same total (J) but different
spin (S) and orbital (L) angular momentum quantum numbers. For J > 0 the numbers
are: (L, S) = (J − 1, 1) nL = 0, (J, 0) nL = 1, (J, 1) nL = 2 and (J + 1, 1) nL = 3.
For the exceptional case J = 0 the numbers are (0, 0) nL = 0 and (1, 1) nL = 1 (i.e.
nL = L). See Table 45.1.
(e) If a set of physical mesons correspond to a (non-negligible) mixture of basis states,
differing in their internal quantum numbers, then the lightest physical state gets thesmallest basis state number. For example the K1 (1270) is numbered 10313 (11 P1 K1B )and the K1 (1400) is numbered 20313 (13 P1 K1A ).
(f) The sixth digit nr is used to label mesons radially excited above the ground state.
1

The scheme was substantially updated and extended in 2012. Certain excited baryons follow the pre-2012
scheme. A further revision and/or extension of the numbering scheme is anticipated in the near future.

S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)
31st May, 2024 10:17am

45. Monte Carlo Particle Numbering Scheme

2

Table 45.1: Meson numbering logic. Here qq stands for nq2 nq3 .
L = J − 1, S = 1
J
0
1
2
3
4

code
—
00qq3
00qq5
00qq7
00qq9

JPC
—
1−−
2++
3−−
4++

L
—
0
1
2
3

L = J, S = 0
code

JPC

00qq1
10qq3
10qq5
10qq7
10qq9

0−+
1+−
2−+
3+−
4−+

L = J, S = 1
L
0
1
2
3
4

code
—
20qq3
20qq5
20qq7
20qq9

JPC
—
1++
2−−
3++
4−−

L = J + 1, S = 1
L

—
1
2
3
4

code

JPC

L

10qq1
30qq3
30qq5
30qq7
30qq9

0++

1
2
3
4
5

1−−
2++
3−−
4++

(g) Numbers have been assigned for complete nr = 0 S- and P -wave multiplets, even wherestates remain to be identified.
(h) In some instances assignments within the q q̄ meson model are only tentative; here best
guess assignments are made.
(i) Many states appearing in the Meson Listings are not yet assigned within the q q̄ model.
Here nq2−3 and nJ are assigned according to the state’s likely flavors and spin; all such
unassigned light isoscalar states are given the flavor code 22. Within these groups
nL = 0, 1, 2, . . . is used to distinguish states of increasing mass. These states are flaggedusing n = 9. It is to be expected that these numbers will evolve as the nature of the states
are elucidated. Codes are assigned to most mesons that are listed in the one-page table
at the end of the Meson Summary Table as long as they have a preferred or establishedspin. Additional heavy meson states expected from heavy quark spectroscopy are also
assigned codes.
6. The numbering of baryons is again guided by the nonrelativistic quark model, see Table 15.6.
This numbering scheme is illustrated through a few examples in Table 45.2.
(a) The numbers specifying a baryon’s quark content are such that in general nq1 ≥ nq2 ≥nq3 .
(b) Two states exist for J = 1/2 baryons containing 3 different types of quarks. In the lighter
baryon (Λ, Ξ, Ω, . . .) the light quarks are in an antisymmetric (J = 0) state while for theheavier baryon (Σ 0 , Ξ 0 , Ω 0 , . . .) they are in a symmetric (J = 1) state. In this situation
nq2 and nq3 are reversed for the lighter state, so that the smaller number corresponds tothe lighter baryon.
(c) For excited baryons a scheme is adopted, where the nr label is used to denote theexcitation bands in the harmonic oscillator model, see Sec. 15.5. Using the notation
employed there, nr is given by the N -index of the DN band identifier.
(d) Further degeneracies of excited hadron multiplets with the same excitation number nr
and spin J are lifted by labelling such multiplets with the nL index according to theirmass, as given by its N or ∆-equivalent.
(e) In such excited multiplets extra singlets may occur, the Λ(1520) being a prominent
example. In such cases the ordering is reversed such that the heaviest quark label ispushed to the last position: nq3 > nq1 > nq2 .
7. The gluon, when considered as a gauge boson, has official number 21. In codes for glueballs,
however, 9 is used to allow a notation in close analogy with that of hadrons.
31st May, 2024

45. Monte Carlo Particle Numbering Scheme

3

Table 45.2: Some examples of octet (top) and decuplet (bottom) members for the numbering
scheme for excited baryons. Here qqq stands for nq1 nq2 nq3 . See the text for the definition of thenotation. The numbers in parenthesis correspond to the mass of the baryons. The states marked
as (?) are not experimentally confirmed.
JP
1/2+
1/2+
1/2+
1/2−
JP
3/2+
3/2+
1/2−
3/2−

(D, LPN ) nr nL nq1 nq2 nq3 nJ
Octet(56, 0+00qqq2
0)(56, 0+)20qqq2
2+(70, 02 )21qqq2(70, 1−)
10qqq2
1P(D, LN ) nr nL nq1 nq2 nq3 nJ
Decuplet(56, 0+00qqq4
0)(56, 0+)20qqq42−
11qqq2(70, 11 ))12qqq4(70, 1−
1NΛ8
211,221312(939)(1116)(1440) (1600)(1710) (1810)(1535) (1670)∆
111,211,221,222(1232)(1600)(1620)(1700)

Σ
311,321,322(1193)(1660)(1880)(1620)
Σ
311,321,322(1385)(1690)(1750)(?)

Ξ
331,332(1318)(1690)(?)(1750)
Ξ
331,332(1530)
(?)
(?)
(?)

Λ1
213
—
—
(?)
(1405)Ω
333(1672)(?)(?)(?)

8. The pomeron and odderon trajectories and a generic reggeon trajectory of states in QCD are
assigned codes 990, 9990, and 110 respectively, where the final 0 indicates the indeterminate
nature of the spin, and the other digits reflect the expected “valence” flavor content. We do
not attempt a complete classification of all reggeon trajectories, since there is currently noneed to distinguish a specific such trajectory from its lowest-lying member.
9. Two-digit numbers in the range 21–30 are provided for the Standard Model gauge and Higgs
bosons.
10. Codes 81–100 are reserved for generator-specific pseudoparticles and concepts. Codes 901–
930, 1901–1930, 2901–2930, and 3901–3930 are for additional components of Standard Modelparton distribution functions: the latter three ranges are intended to distinguish left/ right/
longitudinal components. Codes 998 and 999 are reserved for GEANT tracking purposes.
11. The search for physics beyond the Standard Model is an active area, so these codes are also
standardized as far as possible.
(a) A standard fourth generation of fermions is included by analogy with the first three.
(b) The graviton and the boson content of a two-Higgs-doublet scenario and of additional
SU(2)×U(1) groups are found in the range 31–40.
(c) “One-of-a-kind” exotic particles are assigned numbers in the range 41–80. The subrange
61-80 can be used for new heavier fermions in generic models, where partners to the SM
fermions would have codes offset by 60. If required, however, other assignments could
be made.
(d) Fundamental supersymmetric particles are identified by adding a nonzero n to the particle number. The superpartner of a boson or a left-handed fermion has n = 1 while
the superpartner of a right-handed fermion has n = 2. When mixing occurs, such as
between the winos and charged Higgsinos to give charginos, or between left and rightsfermions, the lighter physical state is given the smaller basis state number.
(e) Technicolor states have n = 3, with technifermions treated like ordinary fermions. States
which are ordinary color singlets have nr = 0. Color octets have nr = 1. If a state has
non-trivial quantum numbers under the topcolor groups SU(3)1 × SU(3)2 , the quantum
31st May, 2024

445. Monte Carlo Particle Numbering Scheme
numbers are specified by tech,ij, where i and j are 1 or 2. nL is then 2i+j. The coloron,
V8 , is a heavy gluon color octet and thus is 3100021.
(f) Excited (composite) quarks and leptons are identified by setting n = 4 and nr = 0.
(g) Within several scenarios of new physics, it is possible to have colored particles sufficiently
long-lived for color-singlet hadronic states to form around them. In the context ofsupersymmetric scenarios, these states are called R-hadrons, since they carry odd Rparity. R-hadron codes, defined here, should be viewed as templates for corresponding
codes also in other scenarios, for any long-lived particle that is either an unflavoredcolor octet or a flavored color triplet. The R-hadron code is obtained by combining
the SUSY particle code with a code for the light degrees of freedom, with as many
intermediate zeros removed from the former as required to make place for the latter atthe end. (To exemplify, a sparticle n00000nq̃ combined with quarks q1 and q2 obtains
code n00nq̃ nq1 nq2 nJ .) Specifically, the new-particle spin decouples in the limit of large
masses, so that the final nJ digit is defined by the spin state of the light-quark system
alone. An appropriate number of nq digits is used to define the ordinary-quark content.
As usual, 9 rather than 21 is used to denote a gluon/gluino in composite states. The
sign of the hadron agrees with that of the constituent new particle (a color triplet) where
there is a distinct new antiparticle, and else is defined as for normal hadrons. Particle
names are R with the flavor content as lower index.
(h) A black hole in models with extra dimensions has code 5000040. Kaluza-Klein excitations
in models with extra dimensions have n = 5 or n = 6, to distinquish excitations of leftor right-handed fermions or, in case of mixing, the lighter or heavier state (cf. 11d). The
nonzero nr digit gives the radial excitation number, in scenarios where the level spacing
allow these to be distinguished. Should the model also contain supersymmetry, excited
SUSY states would be denoted by an nr > 0, with n = 1 or 2 as usual. Should somecolored states be long-lived enough that hadrons would form around them, the coding
strategy of 11g applies, with the initial two nnr digits preserved in the combined code.
(i) Magnetic monopoles and dyons are assumed to have one unit of Dirac monopole charge
and a variable integer number nq1 nq2 nq3 units of electric charge. Codes 411nq1 nq2 nq3 0
are then used when the magnetic and electrical charge sign agree and 412nq1 nq2 nq3 0
when they disagree, with the overall sign of the particle set by the magnetic charge. For
now no spin information is provided.
(j) The nature of Dark Matter (DM) is not known, and therefore a definitive classification
is too early. Candidates within specific scenarios are classified therein, such as 1000022
for the lightest neutralino. Generic fundamental states can be given temporary codesin the range 51 - 60, with 51, 52 and 53 reserved for spin 0, 1/2 and 1 ones (this could
also be an axion state). Generic mediators of s-channel DM pair creation of annihilation
can be given codes 54 and 55 for spin 0 or 1 ones. Separate antiparticles, with negativecodes, may or may not exist. More elaborate new scenarios should be constructed withn = 5 and nr = 9.
(k) Hidden Valley particles have n = 4 and nr = 9, and trailing numbers in agreement with
their nearest-analog standard particles, as far as possible. Thus 4900021 is the gaugeboson gv of a confining gauge field, 490000nqv and 490001n`v fundamental constituentscharged or not under this, 4900022 is the γv of a non-confining field, and 4900nqv1 nqv2 nJ
a Hidden Valley meson.
12. Occasionally program authors add their own states. To avoid confusion, these should be
31st May, 2024

45. Monte Carlo Particle Numbering Scheme

5

flagged by setting nnr = 99.
13. Concerning the non-99 numbers, it may be noted that only quarks, excited quarks, squarks,
and diquarks have nq3 = 0; only diquarks, baryons, and the odderon have nq1 6= 0; and only
mesons, the reggeon, and the pomeron have nq1 = 0 and nq2 6= 0. Concerning mesons (notantimesons), if nq1 is odd then it labels a quark and an antiquark if even.
14. The 9-digit tetra-quark codes are ±1nr nL nq1 nq2 0nq3 nq4 nJ . For the particle q1 q2 is a diquark
and q̄3 q̄4 an antidiquark, sorted such that nq1 ≥ nq2 , nq3 ≥ nq4 , nq1 ≥ nq3 , and nq2 ≥ nq4
if nq1 = nq3 . For the antiparticle, given with a negative sign, q̄1 q̄2 is an antidiquark andq3 q4 a diquark, with the same sorting except that either nq1 > nq3 or nq2 > nq4 (so thatflavour-diagonal states are particles). The nr , nL , and nJ numbers have the same meaning
as for ordinary hadrons.
15. The 9-digit penta-quark codes are ±1nr nL nq1 nq2 nq3 nq4 nq5 nJ , sorted such that nq1 ≥ nq2 ≥nq3 ≥ nq4 . In the particle the first four are quarks and the fifth an antiquark while theopposite holds in the antiparticle, which is given with a negative sign. The nr , nL , and nJ
numbers have the same meaning as for ordinary hadrons.
16. Nuclear codes are given as 10-digit numbers ±10LZZZAAAI. For a (hyper)nucleus consistingof np protons, nn neutrons and nΛ Λ’s, A = np + nn + nΛ gives the total baryon number,
Z = np the total charge and L = nΛ the total number of strange quarks. I gives the isomerlevel, with I = 0 corresponding to the ground state and I > 0 to excitations, see [2], wherestates denoted m, n, p, q translate to I = 1–4. As examples, the deuteron is 1000010020 and
235 U is 1000922350. To avoid ambiguities, nuclear codes should not be applied to a single
hadron, like p, n or Λ0 , where quark-contents-based codes already exist.

QUARKS

d
u
s
c
b
t
b0
t0

1
2
3
4
5
6
7
8

LEPTONS

e−
νe
µ−
νµ
τ−
ντ
τ 0−
ντ 0

11
12
13
14
15
16
17

GAUGE
AND HIGGSBOSONSgγZ0W+h0 /H10Z 0 /Z20
Z 00 /Z30
W 0 /W2+
H 0 /H20
A0 /H30H+H ++a0 /H40(9) 21
22
23
24
25
32
33
34

SPECIALPARTICLES

G (graviton)
39
R0
41
LQc
42
DM (S = 0)
51
DM (S = 12 )52
DM (S = 1)
53
reggeon110
pomeron990
odderon
9990

35
36
37
38
40

for MC internal
use 81–100,
901–930,
998-999,
1901–1930,
2901–2930, and
3901–3930

18

31st May, 2024

DIQUARKS

(dd)1
(ud)0
(ud)1
(uu)1
(sd)0
(sd)1
(su)0
(su)1
(ss)1
(cd)0
(cd)1
(cu)0
(cu)1
(cs)0
(cs)1
(cc)1
(bd)0
(bd)1
(bu)0
(bu)1
(bs)0
(bs)1
(bc)0

1103

(bc)1
(bb)1

5403
5503

2101
2103
2203
3101
3103
3201
3203
3303
4101
4103
4201
4203
4301
4303
4403
5101
5103
5201
5203
5301
5303
5401

SUSY
PARTICLES

deL
u
eL
e
sL
e
cL
eb1
e
t1
e
e−
L
ν
eeL
µ
e−
L
ν
eµL
τe1−
ν
eτ L

1000001
1000002
1000003
1000004
1000005a
1000006a
1000011
1000012
1000013
1000014
1000015a
1000016

45. Monte Carlo Particle Numbering Scheme

6
deR
u
eR
e
sR
e
cR
eb2
e
t2
e
e−
R
µ
e−
R
τe2−
e
g
χ
e01
χ
e02
χ
e+
1
χ
e03
χ
e04
χ
e+
2
e
G

2000001
200000220000032000004
2000005a
2000006a
200001120000132000015a
1000021
1000022b
1000023b
1000024b
1000025b
1000037b
1000039

π
111
π+
211
a0 (980)0 9000111
a0 (980)+ 9000211
π(1300)0 100111
π(1300)+ 100211
a0 (1450)0 10111
a0 (1450)+ 10211
π(1800)0 9010111
π(1800)+ 9010211
ρ(770)0113
ρ(770)+
213
b1 (1235)010113
b1 (1235)+ 10213
a1 (1260)0 20113
a1 (1260)+ 20213
π1 (1400)0 9000113
π1 (1400)+ 9000213
ρ(1450)0 100113
ρ(1450)+ 100213
π1 (1600)0 9010113
π1 (1600)+ 9010213
a1 (1640)0 9020113
a1 (1640)+ 9020213
ρ(1700)030113
ρ(1700)+30213
ρ(1900)0 9030113
ρ(1900)+ 9030213
ρ(2150)0 9040113
ρ(2150)+ 9040213
a2 (1320)0115
a2 (1320)+215

η2 (1870)
f2 (1910)
f2 (1950)
f2 (2010)
f2 (2150)
f2 (2300)
f2 (2340)
ω3 (1670)
φ3 (1850)
f4 (2050)
fJ (2220)
f4 (2300)

10335
90402259050225
9060225
907022590802259090225
227
337

LIGHT I = 0
MESONS(uu, dd, ss
admixtures)ηη 0 (958)
f0 (500)f0 (980)
η(1295)f0 (1370)
η(1405)
η(1475)f0 (1500)
f0 (1710)
η(1760)f0 (2020)
f0 (2100)f0 (2200)η(2225)
ω(782)
φ(1020)h1 (1170)
f1 (1285)h1 (1380)
f1 (1420)
ω(1420)f1 (1510)h1 (1595)
ω(1650)φ(1680)f2 (1270)
f2 (1430)
f20 (1525)
f2 (1565)
f2 (1640)
η2 (1645)
f2 (1810)

221
331
90002219010221
10022110221
9020221
100331
903022110331
90402219050221906022190702219080221
223
333
10223
20223
10333
20333
1002239000223901022330223
100333225
9000225335
9010225
902022510225
9030225

K2 (2250)+9020325
K3∗ (1780)0317
K3∗ (1780)+
327
K3 (2320)0 9010317
K3 (2320)+9010327
K4∗ (2045)0319
K4∗ (2045)+329
K4 (2500)0 9000319
K4 (2500)+9000329

229
90002299010229STRANGEMESONS

1000035b

LIGHT I = 1
MESONS0π2 (1670)0 10115
π2 (1670)+ 10215
a2 (1700)0 9000115
a2 (1700)+ 9000215
π2 (2100)0 9010115
π2 (2100)+ 9010215
ρ3 (1690)0117
ρ3 (1690)+217
ρ3 (1990)0 9000117
ρ3 (1990)+ 9000217
ρ3 (2250)0 9010117
ρ3 (2250)+ 9010217
a4 (2040)0119
a4 (2040)+
219

130
KL0
310
KS0
K0
311
K+
321
K0∗ (700)0 9000311
K0∗ (700)+ 9000321
K0∗ (1430)0 10311
K0∗ (1430)+ 10321
K(1460)0 100311
K(1460)+ 100321
K(1830)0 9010311
K(1830)+ 9010321
K0∗ (1950)0 9020311
K0∗ (1950)+9020321
K ∗ (892)0313
K ∗ (892)+
323
K1 (1270)0 10313
K1 (1270)+ 10323
K1 (1400)0 20313
K1 (1400)+ 20323
K ∗ (1410)0 100313
K ∗ (1410)+ 100323
K1 (1650)0 9000313
K1 (1650)+9000323
K ∗ (1680)0 30313
K ∗ (1680)+ 30323
K2∗ (1430)0315
K2∗ (1430)+
325
K2 (1580)0 9000315
K2 (1580)+9000325
K2 (1770)0 10315
K2 (1770)+ 10325
K2 (1820)0 20315
K2 (1820)+ 20325
K2∗ (1980)0 9010315
K2∗ (1980)+9010325
K2 (2250)0 9020315

31st May, 2024

CHARMEDMESONS

D+
411
D0
421
∗
+
D0 (2400) 10411
D0∗ (2400)0 10421
D∗ (2010)+
413
D∗ (2007)0423
D1 (2420)+ 10413
D1 (2420)0 10423
D1 (H)+
20413
D1 (2430)0 20423
D2∗ (2460)+415
D2∗ (2460)0
425
Ds+
431
∗
Ds0
(2317)+ 10431
Ds∗+433
Ds1 (2536)+ 10433
Ds1 (2460)+ 20433∗
Ds2(2573)+ 435

BOTTOM
MESONS

B0
B+
B0∗0
B0∗+
B ∗0
B ∗+
B1 (L)0B1 (L)+
B1 (H)0B1 (H)+
B2∗0
B2∗+
Bs0
∗0
Bs0
Bs∗0
Bs1 (L)0
Bs1 (H)0
∗0
Bs2

511
521
10511
10521
513
523
10513
10523
20513
20523
515
525
531
10531
533
10533
20533
535

Bc+
∗+
Bc0
Bc∗+
Bc1 (L)+Bc1 (H)+
∗+
Bc2

541
10541
543
10543
20543
545

cc MESONSηc (1S)441
χc0 (1P )10441
ηc (2S)
100441
J/ψ(1S)443
hc (1P )10443
χc1 (1P )
20443
ψ(2S)
100443
ψ(3770)30443
ψ(4040) 9000443
ψ(4160) 9010443
ψ(4415) 9020443
χc2 (1P )445χc2 (3930) 100445

bb MESONSηb (1S)551
χb0 (1P )10551
ηb (2S)
100551χb0 (2P )110551ηb (3S)
200551χb0 (3P )210551
Υ (1S)
553
hb (1P )10553
χb1 (1P )20553
Υ1 (1D)30553
Υ (2S)
100553hb (2P )110553χb1 (2P )120553
Υ1 (2D)
130553Υ (3S)
200553hb (3P )210553χb1 (3P )220553
Υ (4S)
300553
Υ (10860) 9000553
Υ (11020) 9010553
χb2 (1P )555
ηb2 (1D)10555
Υ2 (1D)20555
χb2 (2P )100555ηb2 (2D)
110555
Υ2 (2D)
120555χb2 (3P )200555

45. Monte Carlo Particle Numbering Scheme7Υ3 (1D)Υ3 (2D)

557
100557LIGHT
BARYONS

p
n
∆++
∆+
∆0
∆−

2212
2112
2224

3112
3224c
3214c
3114c
3322
3312
3324c
3314c
3334

2214
2114
1114

STRANGEBARYONS

Λ
Σ+
Σ0

Σ−
Σ ∗+
Σ ∗0
Σ ∗−
Ξ0
Ξ−
Ξ ∗0
Ξ ∗−
Ω−

3122
3222
3212

CHARMEDBARYONS

Λ+
c
Σc++
Σc+
Σc0
Σc∗++
Σc∗+
Σc∗0

4122
4222

Ξc+
Ξc0
Ξc0+
Ξc00
Ξc∗+
Ξc∗0
Ωc0
Ωc∗0
+
Ξcc
++
Ξcc
∗+
Ξcc
∗++
Ξcc
+
Ωcc
∗+
Ωcc
++
Ωccc

4232
4132
4322
4312
4324
4314
4332
4334
4412
4422
4414
4424
4432
4434
4444

4212
4112
4214

BOTTOM
BARYONS

4114

Λ0b

4224

5122

Σb−
Σb0
Σb+
Σb∗−
Σb∗0
Σb∗+
Ξb−
Ξb0
Ξb0−
Ξb00
Ξb∗−
Ξb∗0
Ωb−
Ωb∗−
0
Ξbc
+
Ξbc
00
Ξbc
0+
Ξbc
∗0
Ξbc
∗+
Ξbc

5112
5212
5222
5114
5214
5224
5132
5232
5312
5322
5314
5324
5332
5334

0
Ωbc
00
Ωbc
∗0
Ωbc
+
Ωbcc
∗+
Ωbcc
−
Ξbb
0
Ξbb
∗−
Ξbb
∗0
Ξbb
−
Ωbb
∗−
Ωbb
0
Ωbbc
∗0
Ωbbc
−
Ωbbb

5342
5432
5434
5442
5444
5512
5522
5514
5524
5532
5534
5542
5544
5554

5142
5242
5412
5422
5414
5424

PENTAQUARKSΘ+Φ−−100221132∗
100331122∗

Footnotes to the tables:∗) Numbers or names in bold face are new or have changed since the 2020 Review.
a) Particulary in the third generation, the left and right sfermion states may mix, as shown.
The lighter mixed state is given the smaller number.
e0, Wf +, He 0, He 0 , and H
e + states.
e states are admixtures of the pure γe, Zb) The physical χ12∗∗c) Σ and Ξ are alternate names for Σ(1385) and Ξ(1530).
References[1] G. P. Yost et al. (Particle Data Group), Phys. Lett. B204, 1 (1988).
[2] G. Audi et al., Nucl. Phys. A729, 3 (2003).

31st May, 2024