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{{short description|None}}File:Kaon-Decay.svg|thumb|300px| The decay of a kaon ({{Subatomic particle|Kaon+}}) into three pions (2 {{Subatomic particle|Pion+}}, 1 {{Subatomic particle|Pion-}}) is a process that involves both weak and strong interactions.Weak interactions: The strange antiquark ({{Subatomic particle|strange antiquark}}) of the kaon transmutes into an up antiquark ({{Subatomic particle|up antiquark}}) by the emission of a {{Subatomic particle|W boson+}} boson; the {{Subatomic particle|W boson+}} boson subsequently decays into a down antiquark ({{Subatomic particle|down antiquark}}) and an up quark ({{Subatomic particle|up quark}}).Strong interactions: An up quark ({{Subatomic particle|up quark}}) emits a gluon}}) which decays into a down quark ({{Subatomic particle|down quark}}) and a down antiquark ({{Subatomic particle|down antiquark}}). This article contains a list of mesons, unstable subatomic particles composed of one quark and one antiquark. They are part of the hadron particle family—particles made of quarks. The other members of the hadron family are the baryons—subatomic particles composed of three quarks. The main difference between mesons and baryons is that mesons have integer spin (thus are bosons) while baryons are fermions (half-integer spin). Because mesons are bosons, the Pauli exclusion principle does not apply to them. Because of this, they can act as force mediating particles on short distances, and thus play a part in processes such as the nuclear interaction.Since mesons are composed of quarks, they participate in both the weak and strong interactions. Mesons with net electric charge also participate in the electromagnetic interaction. They are classified according to their quark content, total angular momentum, parity, and various other properties such as C-parity and G-parity. While no meson is stable, those of lower mass are nonetheless more stable than the most massive mesons, and are easier to observe and study in particle accelerators or in cosmic ray experiments. They are also typically less massive than baryons, meaning that they are more easily produced in experiments, and will exhibit higher-energy phenomena sooner than baryons would. For example, the charm quark was first seen in the J/Psi meson ({{Subatomic particle|J/psi}}) in 1974,J.J. Aubert et al. (1974)J.E. Augustin et al. (1974) and the bottom quark in the upsilon meson ({{Subatomic particle|Upsilon}}) in 1977.S.W. Herb et al. (1977) The top quark (the last and heaviest quark to be discovered to date) was first observed at Fermilab in 1995.Each meson has a corresponding antiparticle (antimeson) where quarks are replaced by their corresponding antiquarks and vice versa. For example, a positive pion ({{Subatomic particle|Pion+}}) is made of one up quark and one down antiquark; and its corresponding antiparticle, the negative pion ({{Subatomic particle|Pion-}}), is made of one up antiquark and one down quark. Although tetraquarks with two quarks and two antiquarks can be considered mesons they are not listed here.The symbols encountered in these lists are: I (isospin), J (total angular momentum), P (parity), C (C-parity), G (G-parity), u (up quark), d (down quark), s (strange quark), c (charm quark), b (bottom quark), Q (charge), B (baryon number), S (strangeness), C (charm), and B′ (bottomness), as well as a wide array of subatomic particles (hover mouse for name).

Summary table

Because this table was initially derived from published results and many of those results were preliminary, as many as 64 of the mesons in the following table may not exist or have the wrong mass or quantum numbers.{| class="wikitable"|+ Meson summary tableK.A. Olive et al. (2014): Meson Summary Table! colspan="4" | Light unflavoured(S = C = B = 0)! colspan="2" | Strange(S = ±1, C = B = 0)! colspan="2" | Charmed, strange(C = S = ±1)! colspan="2" | c{{Physics particle|anti=yes|c}}

								| IG(JPC)

π	| 1−(0−)	| 0−(1−−)	K		1|2}}(0−)	D	BR=s}}	0(0−)	η	| 0+(0−+)

π	| 1−(0−+)	ρ	| 1+(3−−)	K		1|2}}(0−)	D	BR=s}}	0(??)	| 0−(1−−)

| 0+(0−+)	| 1+(1−−)	K	BR=S}}	{{frac	2}}(0−)	D	BR=s0}}(2317)±	0(0+)	χ	| 0+(0++)

f	| 0+(0++)	a	| 1−(2++)	K	BR=L}}	{{frac	2}}(0−)	D	| 0(1+)	χ	| 0+(1++)

| 1+(1−−)	| 0+(0++)	K	TR=*		1|2}}(0+)	D	| 0(1+)	h	| ??(1+−)

| 0−(1−−)	| 0+(0−+)	K		1|2}}(1−)	D	| 0(??)	χ	| 0+(2++)

| 0+(0−+)	| 1−(0−+)	K		1|2}}(1+)	D	BR=s1}}(2700)±	0(1−)	η	| 0+(0−+)

f	| 0+(0++)	f	| 0+(2++)	K		1|2}}(1+)	D	BR=sJ}}(2860)±	0(??)	| 0−(1−−)

a	| 1−(0++)	| ??(?−+)	K		1|2}}(1−)	D	| 0(??)	| 0−(1−−)

| 0−(1−−)	| ??(???)	K	BR=0}}(1430)	{{frac	2}}(0+)	Bottom(B = ±1)		| ??(??−)

h	| 0−(1+−)	φ	| 0−(3−−)	K	BR=2}}(1430)	{{frac	2}}(2+)	| 0+(1++)

b	| 1+(1+−)	η	| 0+(2−+)		1|2}}(0−)	B		1|2}}(0−)	| ?(1+)

a	| 1−(1++)	π	| 1−(2−+)	K		1|2}}(2−)	B		1|2}}(0−)	| ?(??)

f	| 0+(2++)	| 1+(1−−)		1|2}}(??)	{{Physics particle		TR=±}}/{{Physics particle	TR=0}} Admixture	χ	| 0+(0++)

f

| 0+(1++)

f

| 0+(2++)

K

1|2}}(1+)

{{Physics particle

TR=±}}/{{Physics particle

TR=0}}/{{Physics particle

TR=0|BR=s}}/b-baryonAdmixture

χ

| 0+(2++)

| 0+(0−+)	f	| 0+(2++)	K		1|2}}(1−)	| ??(???)

| 1−(0−+)	ρ	| 1+(3−−)	K		1|2}}(2−)	Vcb and Vub CKM MatrixAdmixture		| ?(??)

a	| 1−(2++)	f	| 0+(2++)	K	BR=3}}(1780)	{{frac	2}}(3−)	| 0−(1−−)

f	| 0+(0++)	f	| 0+(0++)	K		1|2}}(2−)	B		1|2}}(1−)	| ?(??)

h	| ?−(1+−)	a	| 1−(4++)		1|2}}(0−)	B	BR=J}}(5732)	?(??)	| 0+(??+)

π	| 1−(1−+)	f	| 0+(4++)	K	BR=0}}(1950)	{{frac	2}}(0+)	B		1|2}}(1+)	| 0−(1−−)

| 0+(0−+)	π	| 1−(2−+)	K	BR=2}}(1980)	{{frac	2}}(2+)	B	BR=1}}(5721)0	{{frac	2}}(2+)	| ??(???)

f	| 0+(1++)	f	| 0+(0++)	K	BR=0}}(2045)	{{frac	2}}(4+)	Bottom, strange(B = ±1, S = ∓1)		| ?(??)

| 0−(1−−)	f	| 0+(2++)	K		1|2}}(2−)	| ??(1−−)

f	| 0+(2++)	| 1+(1−−)	K		1|2}}(3+)	B	BR=s}}	0(0−)	| 0+(??+)

a	| 1−(0++)	| 0−(1−−)	K	BR=5}}(2380)	{{frac	2}}(5−)	B	BR=s}}	0(1−)	| ??(1−−)

| 1+(1−−)	f	| 0+(0++)	k		1|2}}(4−)	B	| 0(1+)	| 0−(1−−)

| 0+(0−+)	fJ(2200)	rowspan="2" | 0+(2++or 4++)	| ??(???)	B	BR=s2}}(5840)0	0(2+)	| ?(1+)

f	| 0+(0++)	Charmed(C = ±1)		B	BR=sJ}}(5850)	?(??)	| ??(1−−)

f	| 0+(1++)	| 0+(0−+)	Bottom, charmed(B = C = ±1)		'''b{{Physics particle		anti=yes}}'''

f′	| 0+(2++)	ρ	| 1+(3−−)	D		1|2}}(0−)	η	| 0+(0−+)

f	| 0+(2++)	| 0+(2++)	D		1|2}}(0−)	B	BR=c}}	0(0−)	| 0−(1−−)

| 1+(1−−)	f	| 0+(4++)	D		1|2}}(1−)			χ	| 0+(0++)

h	| 0−(1+−)	f	| 0+(0++)	D		1|2}}(1−)	χ	| 0+(1++)

π	| 1−(1−+)	f	| 0+(2++)	D	BR=0}}(2400)0	{{frac	2}}(0+)	χ	| 0+(0++)

a	| 1−(1++)	ρ	| 1+(5−−)	D	BR=0}}(2400)±	{{frac	2}}(0+)	h	| ??(1+−)

f	| 0+(2++)	a	| 1−(6++)	D		1|2}}(1+)	χ	| 0+(2++)

η	| 0+(2−+)	f	| 0+(6++)	D		1|2}}(??)	η	| 0+(0−+)

| 0−(1−−)	Other light		D		1|2}}(1+)	| 0−(1−−)

ω	| 0−(3−−)	Further States		D	BR=2}}(2460)0	{{frac	2}}(2+)	| 0−(2−−)

π	| 1−(2−+)	Further states		D	BR=2}}(2460)±	{{frac	2}}(2+)	χ	| 0+(0++)

			1|2}}(0−)	χ	| 0+(1++)

	1|2}}(??)	h	| ??(1+−)

D		1|2}}(??)	χ	| 0+(2++)

	1|2}}(??)	| 0−(1−−)

		χ	| ??(??+)

| 0−(1−−)

| 1+(1+)

| 1+(1+)

| ?+(1+)

| 0−(1−−)

| 0−(1−−)

Mesons named with the letter "f" are scalar mesons (as opposed to a pseudo-scalar meson), and mesons named with the letter "a" are axial-vector mesons (as opposed to an ordinary vector meson) a.k.a. an isoscalar vector meson, while the letters "b" and "h" refer to axial-vector mesons with positive parity, negative C-parity, and quantum numbers IG of 1+ and 0− respectively.Kan Chen, et al., "Light axial vector mesons" Phys. Rev. D 91, 074025 (2015) doi: 10.1103/PhysRevD.91.074025 open access copy available atweblink "f", "a", "b" and "h" mesons are not listed in the tables below and their internal structure and quark content is a matter of ongoing investigation.JOURNAL , CONFERENCE The particle described in the table above as f0(500) has historically been known by two other names: f0(600) and σ (sigma).JOURNAL , A complete set of meson naming conventions is set forth in a 2017 review article for the Particle Data Group which also contains a table mapping pre-2016 common names to the new Particle Data Group standard naming conventions for XYZ mesons.JOURNAL , WEB ,

Meson properties

The following lists details for all known and predicted pseudoscalar (JP = 0−) and vector (JP = 1−) mesons.The properties and quark content of the particles are tabulated below; for the corresponding antiparticles, simply change quarks into antiquarks (and vice versa) and flip the sign of Q, B, S, C, and B′. Particles with † next to their names have been predicted by the standard model but not yet observed. Values in {{color|red|red}} have not been firmly established by experiments, but are predicted by the quark model and are consistent with the measurements.

Pseudoscalar mesons

{| class="wikitable sortable" style="text-align:center; width:100%;"|+ Pseudoscalar mesons! class=unsortable | Particlename! Particlesymbol! Antiparticlesymbol! class=unsortable | Quarkcontent! Rest mass (MeV/c2)! width="50" | IG! width="50" | JPC! width="50" | S! width="50" | C! width="50" | B'! Mean lifetime (s)! class=unsortable | Commonly decays to(>5% of decays)

PionK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Pion+-}}	link=yes|Pion+}}	link=yes|Pion-}}	link=yes	link=yes|Down antiquark}}			{{Subatomic particle	Antimuon}} + {{Subatomic particle	Muon neutrino}}}}

PionK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Pion0}}	link=yes|Pion0}}| Self	mathrm{tfrac{ubar{u} - dbar{d}}{sqrt{2}}},{{ref	[a]}}}}			{{Subatomic particle	Photon}} + {{Subatomic particle	Photon}}}}

Eta mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Eta}}

link=yes|Eta}}| Self

mathrm{tfrac{ubar{u} + dbar{d} - 2sbar{s}}{sqrt{6}}},{{ref

[a]}}}}

[b]}}}}

{{Subatomic particle

Photon}} + {{Subatomic particle

Photon}}}} or {{nowrap

link=yes

link=yes

link=yes

{{Subatomic particle

Pion+}} + {{Subatomic particle

Pion0}} + {{Subatomic particle

Pion-}}}}

Eta prime mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Eta prime}}

link=yes|Eta prime}}(958)| Self

tfracmathrm{ubar{u} + dbar{d} + sbar{s}}{sqrt{3}},{{ref

[a]}}}}

[b]}}}}

{{Subatomic particle

Pion+}} + {{Subatomic particle

Pion-}} + {{Subatomic particle

Eta}} or}}{{nowrap

link=yes

link=yes

link=yes

link=yes

link=yes

{{Subatomic particle

Pion0}} + {{Subatomic particle

Pion0}} + {{Subatomic particle

Eta}}}}

Charmed eta mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Charmed eta}}	link=yes|Charmed eta}}(1S)| Self	link=yes	link=yes|charm antiquark}}	fmt=commas	0.7}}| 0+| 0−+| 0| 0| 0		[b]}}}}	See {{Subatomic particle>Charmed eta}} decay modes

Bottom eta mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Bottom eta}}	link=yes|Bottom eta}}(1S)| Self	link=yes	link=yes|Bottom antiquark}}	fmt=commas	3.2}}	red	red|+}}	red	red|−}}+| 0| 0| 0| Unknown	See {{Subatomic particle>Bottom eta}} decay modes

KaonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Kaon+-}}

link=yes|Kaon+}}

link=yes|Kaon-}}

link=yes

link=yes|Strange antiquark}}

1|2}}| 0−| 1| 0| 0

{{Subatomic particle

Antimuon}} + {{Subatomic particle

Muon neutrino}} or}}{{nowrap

link=yes

link=yes

{{Subatomic particle

pion0}} + {{Subatomic particle

positron}} + {{Subatomic particle

Electron neutrino}} or}}{{nowrap

link=yes

link=yes

link=yes|pion-}} }}

KaonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Kaon0}}	link=yes|Kaon0}}	link=yes|Antikaon0}}	link=yes	link=yes|Strange antiquark}}		1|2}}| 0−| 1| 0| 0	strongforce|[c]}}	strongforce|[c]}}

K-ShortK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|K-short0}}	link=yes|K-short0}}| Self	mathrm{tfrac{dbar{s} + sbar{d}}{sqrt{2}}},{{ref	[e]}}}}	Kaonmass|[d]}}	1|2}}| 0−	List of mesons#Notes on neutral kaons>(*)| 0| 0		{{Subatomic particle	pion+}} + {{Subatomic particle	pion-}} or}}{{nowrap|{{Subatomic particle|link=yes|pion0}} + {{Subatomic particle|link=yes|pion0}}}}

K-LongK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|k-long0}}

link=yes|K-long0}}| Self

mathrm{tfrac{dbar{s} - sbar{d}}{sqrt{2}}},{{ref

[e]}}}}

Kaonmass|[d]}}

1|2}}| 0−

List of mesons#Notes on neutral kaons>(*)| 0| 0

{{Subatomic particle

Pion+-}} + {{Subatomic particle

electron-+}} + {{Subatomic particle

Electron neutrino}} or}}{{nowrap

link=yes

link=yes

link=yes

{{Subatomic particle

Pion0}} + {{Subatomic particle

Pion0}} + {{Subatomic particle

Pion0}} or}}{{nowrap

link=yes

link=yes

link=yes|Pion-}}}}

D mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|D+-}}	link=yes|D+}}	link=yes|D-}}	link=yes	link=yes|Down antiquark}}	fmt=commas	0.10}}	1|2}}| 0−| 0| +1| 0		See {{Subatomic particle>D+}} decay modes

D mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|D0}}	link=yes|D0}}	link=yes|AntiD0}}	link=yes	link=yes|up antiquark}}	fmt=commas	0.07}}	1|2}}| 0−| 0| +1| 0		See {{Subatomic particle>D0}} decay modes

strange D mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Strange D+-}}	link=yes|Strange D+}}	link=yes|Strange D-}}	link=yes	link=yes|strange antiquark}}	fmt=commas	0.11}}| 0	red|−}}| +1| +1| 0		See {{Subatomic particle>Strange D+}} decay modes

B mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|B+-}}

link=yes|B+}}

link=yes|B-}}

link=yes

link=yes|bottom antiquark}}

fmt=commas

0.17}}

red

1|2}}}}

red

red|−}}| 0| 0| +1

See {{Subatomic particle>B+}} decay modes

B mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|B0}}

link=yes|B0}}

link=yes|AntiB0}}

link=yes

link=yes|Bottom antiquark}}

fmt=commas

0.17}}

red

1|2}}}}

red

red|−}}| 0| 0| +1

See {{Subatomic particle>B0}} decay modes

Strange B mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Strange B0}}	link=yes|Strange B0}}	link=yes|Strange AntiB0}}	link=yes	link=yes|Bottom antiquark}}	fmt=commas	0.24}}	red|0}}	red	red|−}}| −1| 0| +1		See {{Subatomic particle>Strange B0}} decay modes

Charmed B mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Charmed B+-}}	link=yes|Charmed B+}}	link=yes|Charmed B-}}	link=yes	link=yes|bottom antiquark}}	fmt=commas	1.1}}	red|0}}	red	red|−}}| 0| +1| +1		See {{Subatomic particle>Charmed B+}} decay modes

[a] {{note|quarkcontent}} Makeup inexact due to non-zero quark masses.[b] {{note|Lifetime}} PDG reports the resonance width (Γ). Here the conversion Ï„ = {{frac|ħ|Γ}} is given instead.[c] {{note|strongforce}}Strong eigenstate. No definite lifetime (see kaon notes below)[d] {{note|Kaonmass}} The mass of the {{Subatomic particle|K-long0}} and {{Subatomic particle|K-short0}} are given as that of the {{Subatomic particle|Kaon0}}. However, it is known that a difference between the masses of the {{Subatomic particle|K-long0}} and {{Subatomic particle|K-short0}} on the order of {{val|2.2|e=-11|u=MeV/c2}} exists.[e] {{note|Kaon}}Weak eigenstate. Makeup is missing small CP–violating term (see notes on neutral kaons below).

Vector mesons

{| class="wikitable sortable" style="text-align: center; width:100%"|+Vector mesons! class=unsortable | Particlename! Particlesymbol! Antiparticlesymbol! class=unsortable | Quarkcontent! Rest mass (MeV/c2)! width="50" | IG! width="50" | JPC! width="50" | S! width="50" | C! width="50" | B'! Mean lifetime (s)! class=unsortable | Commonly decays to(>5% of decays)

Charged rho mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|rho}}	link=yes|Rho+}}(770)	link=yes|Rho-}}(770)	link=yes	link=yes|Down antiquark}}			[f]}}{{ref	[g]}}}}	{{Subatomic particle	Pion+-}} + {{Subatomic particle	Pion0}}}}

Neutral rho meson	link=yes|Rho0}}(770)| Self	mathrm{tfrac{ubar{u}-dbar{d}}{sqrt 2}}}}			[f]}}{{ref	[g]}}}}	{{Subatomic particle	Pion+}} + {{Subatomic particle	Pion-}}}}

Omega mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Omega meson}}(782)	link=yes|omega meson}}(782)| Self	mathrm{tfrac{ubar{u}+dbar{d}}{sqrt 2}}}}			[f]}}}}	{{Subatomic particle	Pion+}} + {{Subatomic particle	Pion0}} + {{Subatomic particle	Pion-}} or}}{{nowrap	link=yes	link=yes|Photon}}}}

Phi mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Phi meson}}

link=yes|Phi meson}}(1020)| Self

link=yes

link=yes|Strange antiquark}}

fmt=commas

0.019}}| 0−| 1−−| 0| 0| 0

[f]}}}}

{{Subatomic particle

Kaon+}} + {{Subatomic particle

Kaon-}} or}} {{nowrap

link=yes

link=yes

({{Subatomic particle

rho}} + {{Subatomic particle

pion}}) / ({{Subatomic particle

pion+}} + {{Subatomic particle

pion0}} + {{Subatomic particle

pion-}})}}

J/PsiK.A. Olive et al. (2014): Particle listings – J/Ψ	link=yes|J/Psi}}| Self	link=yes	link=yes|Charm antiquark}}	fmt=commas	0.011}}| 0−| 1−−| 0| 0| 0		[f]}}}}	See {{Subatomic particle>J/psi}}(1S) decay modes

Upsilon mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Upsilon}}(1S)	link=yes|Upsilon}}(1S)| Self	link=yes	link=yes|bottom antiquark}}	fmt=commas	0.26}}| 0−| 1−−| 0| 0| 0		[f]}}}}	See {{Subatomic particle>Upsilon}}(1S) decay modes

KaonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Kaon*}}(892)	link=yes|Kaon*+}}	link=yes|Kaon*-}}	link=yes	link=yes|Strange antiquark}}		1|2}}| 1−| 1| 0| 0		[f]}}{{ref	[g]}}}}	See {{Subatomic particle>Kaon*}}(892) decay modes

Kaon	link=yes|Kaon*0}}	link=yes|Antikaon*0}}	link=yes	link=yes|Strange antiquark}}		1|2}}| 1−| 1| 0| 0		[f]}}}}	See {{Subatomic particle>Kaon*}}(892) decay modes

D mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|D*+-}}(2010)

link=yes|D*+}}(2010)

link=yes|D*-}}(2010)

link=yes

link=yes|Down antiquark}}

fmt=commas

0.07}}

red

1|2}}}}

red

red|−}}| 0| +1| 0

[f]}}}}

{{Subatomic particle

D0}} + {{Subatomic particle

Pion+}} or}}{{nowrap

link=yes

link=yes|Pion0}}}}

D mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|D*0}}(2007)

link=yes|D*0}}(2007)

link=yes|AntiD*0}}(2007)

link=yes

link=yes|up antiquark}}

fmt=commas

0.10}}

red

1|2}}}}

red

red|−}}| 0| +1| 0

Lifetime2|[f]}}}}

{{Subatomic particle

D0}} + {{Subatomic particle

Pion0}} or}}{{nowrap

link=yes

link=yes|Photon}}}}

Strange D mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Strange D*+-}}

link=yes|Strange D*+}}

link=yes|Strange D*-}}

link=yes

link=yes|strange antiquark}}

fmt=commas

0.4}}

red|0}}

red

red|−}}| +1| +1| 0

Lifetime2|[f]}}}}

{{Subatomic particle

D*+}} + {{Subatomic particle

Photon}} or}}{{nowrap

link=yes

link=yes|Pion0}}}}

B mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|B*}}

link=yes|B*+}}

link=yes|B*-}}

link=yes

link=yes|bottom antiquark}}

fmt=commas

0.4}}

red

1|2}}}}

red

red|−}}| 0| 0| +1| Unknown

{{Subatomic particle

B+}} + {{Subatomic particle

Photon}}}}

B meson

link=yes|B*0}}

link=yes|AntiB*0}}

link=yes

link=yes|Bottom antiquark}}

fmt=commas

0.4}}

red

1|2}}}}

red

red|−}}| 0| 0| +1| Unknown

{{Subatomic particle

B0}} + {{Subatomic particle

Photon}}}}

Strange B mesonK.A. Olive et al. (2014): Particle listings – {{Subatomic particle|Strange B*}}

link=yes|Strange B*0}}

link=yes|Strange AntiB*0}}

link=yes

link=yes|Bottom antiquark}}

fmt=commas

+2.4|-2.1}}

red|0}}

red

red|−}}| −1| 0| +1| Unknown

{{Subatomic particle

Strange B0}}+{{Subatomic particle

Photon}}}}

Charmed B mesonâ€	link=yes|Charmed B*+}}	link=yes|Charmed B*-}}	link=yes	link=yes|bottom antiquark}}| Unknown	red|0}}	red	red|−}}| 0| +1| +1| Unknown| Unknown

[f] {{note|Lifetime2}} PDG reports the resonance width (Γ). Here the conversion Ï„ = {{frac|ħ|Γ}} is given instead.[g] {{note|Lifetime3}} The exact value depends on the method used. See the given reference for detail.

Notes on neutral kaons

There are two complications with neutral kaons:

• Due to neutral kaon mixing, the {{Subatomic particle|link=yes|K-short0}} and {{Subatomic particle|link=yes|K-long0}} are not eigenstates of strangeness. However, they are eigenstates of the weak force, which determines how they decay, so these are the particles with definite lifetime.
• The linear combinations given in the table for the {{Subatomic particle|link=yes|K-short0}} and {{Subatomic particle|link=yes|K-long0}} are not exactly correct, since there is a small correction due to CP violation. See CP violation in kaons.

Note that these issues also exist in principle for other neutral flavored mesons; however, the weak eigenstates are considered separate particles only for kaons because of their dramatically different lifetimes.J.W. Cronin (1980)

See also

• List of baryons
• List of particles
• Timeline of particle discoveries

{{Clear}}

References

{{Reflist|2}}

Bibliography

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• BOOK

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• JOURNAL

• JOURNAL

• JOURNAL

• JOURNAL

• JOURNAL

• JOURNAL

• JOURNAL

• JOURNAL

External links

• Particle Data Group – The Review of Particle Physics (2008)
• Mesons made thinkable, an interactive visualisation allowing physical properties to be compared

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