LHCb spectroscopy results

Spectroscopy studies are an essential part of the LHCb experiment physics programme. The unique collected data samples and the excellent performance of the LHCb detector enable precision studies in the spectroscopy sector. These measurements provide tests for effective theories of the strong interaction. The latest results obtained by the LHCb experiment in the standard and exotic spectroscopy sectors are presented.

hadron spectroscopy
precision measurement
LHC-B
strong interaction
effective field theory
exotic

References(21)

Figures(0)

[1]

First Observation of the Doubly Charmed Baryon $\Xi^+_{cc}$

SELEX

Collaboration

•

M. Mattson
(
- Carnegie Mellon U.
)

et al.

- Phys.Rev.Lett. 89 (2002) 112001
•
e-Print:
- hep-ex/0208014
•
DOI:
- 10.1103/PhysRevLett.89.112001

[2]

Confirmation of the Double Charm Baryon $\Xi^+_{cc}$ (3520) via its Decay to $pD^+K^-$

SELEX

Collaboration

•

A. Ocherashvili
(
- Tel Aviv U.
)

et al.

- Phys.Lett.B 628 (2005) 18-24
•
e-Print:
- hep-ex/0406033
•
DOI:
- 10.1016/j.physletb.2005.09.043

[3]

Search for doubly charmed baryons Xi(cc)+ and Xi(cc)++ in BABAR

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.D 74 (2006) 011103
•
e-Print:
- hep-ex/0605075
•
DOI:
- 10.1103/PhysRevD.74.011103

[4]

Observation of new states decaying into Lambda(c)+ K- pi+ and Lambda(c)+ K0(S) pi-

Belle

Collaboration

•

R. Chistov

et al.

- Phys.Rev.Lett. 97 (2006) 162001
•
e-Print:
- hep-ex/0606051
•
DOI:
- 10.1103/PhysRevLett.97.162001

[5]

Search for the doubly charmed baryon $\Xi_{cc}^+$

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 12 (2013) 090
•
e-Print:
- 1310.2538
•
DOI:
- 10.1007/JHEP12(2013)090

[6]

Observation of the doubly charmed baryon $\Xi_{cc}^{++}$

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.Lett. 119 (2017) 11, 112001
•
e-Print:
- 1707.01621
•
DOI:
- 10.1103/PhysRevLett.119.112001

[7]

Measurement of the Lifetime of the Doubly Charmed Baryon $\Xi_{cc}^{++}$

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 121 (2018) 5, 052002
•
e-Print:
- 1806.02744
•
DOI:
- 10.1103/PhysRevLett.121.052002

[8]

First Observation of the Doubly Charmed Baryon Decay $\Xi_{cc}^{++}\rightarrow \Xi_{c}^{+}\pi^{+}$

LHCb

Collaboration

•

Roel Aaij
(
- Nikhef, Amsterdam
)

et al.

- Phys.Rev.Lett. 121 (2018) 16, 162002
•
e-Print:
- 1807.01919
•
DOI:
- 10.1103/PhysRevLett.121.162002

[9]

Observation of two new $\Xi_b^-$ baryon resonances

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 114 (2015) 062004
•
e-Print:
- 1411.4849
•
DOI:
- 10.1103/PhysRevLett.114.062004

[10]

Observation of a new $\Xi_{b}$ Baryon

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.Lett. 108 (2012) 252002
•
e-Print:
- 1204.5955
•
DOI:
- 10.1103/PhysRevLett.108.252002

[11]

Measurement of the properties of the $\Xi_b^{*0}$ baryon

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- JHEP 05 (2016) 161
•
e-Print:
- 1604.03896
•
DOI:
- 10.1007/JHEP05(2016)161

[12]

Observation of a new $\Xi_b^-$ resonance

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 121 (2018) 7, 072002
•
e-Print:
- 1805.09418
•
DOI:
- 10.1103/PhysRevLett.121.072002

[13]

$\chi_{c1}$ and $\chi_{c2}$ Resonance Parameters with the Decays $\chi_{c1,c2}\to J/\psi\mu^+\mu^-$

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.Lett. 119 (2017) 22, 221801
•
e-Print:
- 1709.04247
•
DOI:
- 10.1103/PhysRevLett.119.221801

[14]

Observation of $J/\psi p$ Resonances Consistent with Pentaquark States in $\Lambda_b^0 \to J/\psi K^- p$ Decays

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.Lett. 115 (2015) 072001
•
e-Print:
- 1507.03414
•
DOI:
- 10.1103/PhysRevLett.115.072001

[15]

Model-independent evidence for $J/\psi p$ contributions to $\Lambda_b^0\to J/\psi p K^-$ decays

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.Lett. 117 (2016) 8, 082002
•
e-Print:
- 1604.05708
•
DOI:
- 10.1103/PhysRevLett.117.082002

[16]

Evidence for exotic hadron contributions to $\Lambda_b^0 \to J/\psi p \pi^-$ decays

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.Lett. 117 (2016) 8, 082003,
- Phys.Rev.Lett. 117 (2016) 10, 109902 (addendum),
- Phys.Rev.Lett. 118 (2017) 119901 (addendum)
•
e-Print:
- 1606.06999
•
DOI:
- 10.1103/PhysRevLett.117.082003

[16]

Evidence for exotic hadron contributions to $\Lambda_b^0 \to J/\psi p \pi^-$ decays

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.Lett. 117 (2016) 8, 082003,
- Phys.Rev.Lett. 117 (2016) 10, 109902 (addendum),
- Phys.Rev.Lett. 118 (2017) 119901 (addendum)
•
e-Print:
- 1606.06999
•
DOI:
- 10.1103/PhysRevLett.117.082003

[17]

Search for weakly decaying $b$ -flavored pentaquarks

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.D 97 (2018) 3, 032010
•
e-Print:
- 1712.08086
•
DOI:
- 10.1103/PhysRevD.97.032010

[18]

A Nonlinear field theory

T.H.R. Skyrme
(
- Harwell, AERE
)

- Proc.Roy.Soc.Lond.A 260 (1961) 127-138,
- Also in *Brown, G.E. (ed.): Selected papers of Tony Hilton Royle Skyrme* 195-206
•
DOI:
- 10.1098/rspa.1961.0018

[19]

Search for beautiful tetraquarks in the $\Upsilon(1S)\mu^+\mu^-$ invariant-mass spectrum

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 10 (2018) 086
•
e-Print:
- 1806.09707
•
DOI:
- 10.1007/JHEP10(2018)086

[20]

Observation of the decay $\Lambda_b^0 \to \Lambda_c^+ p \overline{p} \pi^-$

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Lett.B 784 (2018) 101-111
•
e-Print:
- 1804.09617
•
DOI:
- 10.1016/j.physletb.2018.07.033