LHC - New particles

Taking a closer look at LHC

In addition to the Higgs Boson, dozens of new hadrons have been discovered with collision data at the LHC during Run 1 and Run 2. Most of them have been found in the LHCb experiment.

The table below shows the discoveries announced from April 2012 to July 2022, and is taken from the Patrick Koppenburg-Website

Experiment

Particle

Mass [MeV]

Quarks

ATLAS

χb(3P)

10530±10

b¯b

CMS

Ξb(5945)0

5945±3

bsu

LHCb

Λb(5920)0

5919.8±0.7

bud

LHCb

Λb(5912)0

5912.0±0.7

bud

LHCb

D∗J(3000)+,0

3008±4

c¯q

LHCb

DJ(3000)0

2972±9

c¯u

LHCb

D∗J(2760)+

2772±4

c¯d

LHCb

DJ(2740)0

2737±12

c¯u

LHCb

DJ(2580)0

2580±6

c¯u

CMS

X(4140)

4148±7

c¯c(s¯s)

ATLAS

Bc(2S)+

6842±6

¯bc

LHCb

D∗s1(2860)+

2859±27

c¯s

LHCb

Ξb(5955)−

5955.3±0.5

bsd

LHCb

Ξ′b(5935)−

5935.0±0.5

bsd

LHCb

BJ(5970)+,0

5969±6

¯bq

LHCb

BJ(5840)+,0

5863±9

¯bq

LHCb

PNψ(4450)+

4449.8±3.0

c¯cuud

LHCb

PNψ(4380)+

4380±30

c¯cuud

LHCb

X(4700)

4704+17−26

c¯c(s¯s)

LHCb

X(4500)

4506+16−19

c¯c(s¯s)

LHCb

X(4274)

4273+19−9

c¯c(s¯s)

LHCb

D∗3(2760)0

2776±8

c¯u

LHCb

Λc(2860)+

2856+2−6

cud

LHCb

Ωc(3119)0

3119.1+1.0−1.1

css

LHCb

Ωc(3090)0

3090.2+0.7−0.8

css

LHCb

Ωc(3066)0

3065.6+0.4−0.6

css

LHCb

Ωc(3050)0

3050.2+0.3−0.5

css

LHCb

Ωc(3000)0

3000.4+0.4−0.5

css

LHCb

Ξ++cc

3621.4±0.8

ccu

LHCb

Ξb(6227)−

6226.9±2.0

bsd

CMS

χb2(3P)

10524.0±0.6

b¯b

CMS

χb1(3P)

10513.4±0.4

b¯b

LHCb

Σb(6097)−

6095.8±1.8

bdd

LHCb

Σb(6097)+

6098.0±1.8

buu

CMS

B∗c(2S)+

Undetermined

¯bc

CMS

Bc(2S)+

6871.0±1.6

¯bc

LHCb

ψ3(3842)

3842.7±0.2

c¯c

LHCb

PNψ(4457)+

4457+4−2

c¯cuud

LHCb

PNψ(4440)+

4440+4−5

c¯cuud

LHCb

PNψ(4312)+

4312+7−1

c¯cuud

LHCb

Λb(6152)0

6152.5±0.4

bud

LHCb

Λb(6146)0

6146.2±0.4

bud

LHCb

Ωb(6350)−

6349.9±0.6

bss

LHCb

Ωb(6340)−

6339.7±0.6

bss

LHCb

Λb(6070)0

6072.3±3.0

bud

LHCb

Ξc(2939)0

2938.55±0.30

csd

LHCb

Ξc(2923)0

2923.04±0.35

csd

LHCb

Tψψ(6900)

6905±13

c¯cc¯c

LHCb

Tcs1(2900)0

2904±5

c¯ds¯u

LHCb

Tcs0(2900)0

2866±7

c¯ds¯u

LHCb

Ξb(6227)0

6227.1+1.5−1.6

bsu

LHCb

B∗s(6114)0

6114±6

¯bs

LHCb

B∗s(6063)0

6063.5±1.4

¯bs

LHCb

Ds0(2590)+

2591±9

c¯s

CMS

Ξb(6100)−

6100.3±0.6

bsd

LHCb

X(4685)

4684+15−17

c¯c(s¯s)

LHCb

X(4630)

4630+20−110

c¯c(s¯s)

LHCb

Tψs1(4220)+

4220+50−40

c¯cu¯s

LHCb

Tθψs1(4000)+

4003+7−15

c¯cu¯s

LHCb

Tcc(3875)+

3870.01±0.12

cc¯u¯d

LHCb

Ξb(6333)0

6332.7±0.3

bsu

LHCb

Ξb(6327)0

6327.3±0.3

bsu

LHCb

Tac¯s0(2900)0

2892±21

c¯s¯ud

LHCb

Tac¯s0(2900)++

2921±25

c¯su¯d

LHCb

X(3960)

3955±13

c¯c(s¯s)

LHCb

PΛψs(4338)0

4338.2±0.8

c¯csud

AUTHORS


Xabier Cid Vidal, PhD in experimental Particle Physics for Santiago University (USC). Research Fellow in experimental Particle Physics at CERN from January 2013 to Decembre 2015. Currently, he is in USC Particle Physics Department ("Ramon y Cajal", Spanish Postdoctoral Senior Grants).

Ramon Cid Manzano, secondary school Physics Teacher at IES de SAR (Santiago - Spain), and part-time Lecturer (Profesor Asociado) in Faculty of Education at the University of Santiago (Spain), until his retirement in 2020. He has a Degree in Physics and in Chemistry, and is PhD for Santiago University (USC).

CERN


CERN WEBSITE

CERN Directory

CERN Experimental Program

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CERN Experimental Physics Department

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CERN Structure

CERN and the Environment

LHC


LHC

Detector CMS

Detector ATLAS

Detector ALICE

Detector LHCb

Detector TOTEM

Detector LHCf

Detector MoEDAL

 


 IMPORTANT NOTICE

 For the bibliography used when writing this Section please go to the References Section


© Xabier Cid Vidal & Ramon Cid - rcid@lhc-closer.es  | SANTIAGO (SPAIN) |

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