Overview of recent LHCb results

A selection of the most recent and relevant measurements by the LHCb experiment is presented. It includes the determination of the CKM angle γ, obtained from a combination of a number of measurements of B meson decays, the measurement of the

D_0 - D_0

mixing parameters and the results of several tests of the lepton-flavour universality of the electroweak couplings.

talk: Matera 2018/06/25
p p: scattering
p p: colliding beams
B: decay
LHC-B
CERN LHC Coll
electroweak interaction
lepton: flavor: universality
CKM matrix
D0 anti-D0: mixing

References(40)

Figures(0)

The LHCb Detector at the LHC

LHCb

Collaboration

•

A.Augusto Alves, Jr.
(
- Rio de Janeiro, CBPF
)

et al.

- JINST 3 (2008) S08005
•
DOI:
- 10.1088/1748-0221/3/08/S08005

CKM fitter Group / results shown at ICHEP2016 conference. [Google Scholar]

How to determine all the angles of the unitarity triangle from B(d)0 ---> D K(s) and B(s)0 ---> D0

Michael Gronau
(
- Technion and
- DESY
)
,
David London
(
- Montreal U.
)

- Phys.Lett.B 253 (1991) 483-488
•
DOI:
- 10.1016/0370-2693(91)91756-L

On determining a weak phase from CP asymmetries in charged B decays

Michael Gronau
(
- Technion
)
,
Daniel Wyler
(
- Zurich U.
)

- Phys.Lett.B 265 (1991) 172-176,
- Phys. Lett. B265 (1991) 172-176 and Haifa Isr. Inst. Technol. - TECHNION-PH-91-14 (91/04,rec.Jun.) 12 p. (108261) Zuerich Univ. - ZU-TH 91-06 (91/04,rec.Jun.) 12 p.
•
DOI:
- 10.1016/0370-2693(91)90034-N

Enhanced CP violation with B ---> K D0 (anti-D0) modes and extraction of the CKM angle gamma

- Phys.Rev.Lett. 78 (1997) 3257-3260
•
e-Print:
- hep-ph/9612433
•
DOI:
- 10.1103/PhysRevLett.78.3257

Improved Methods for Observing CP Violation in $B^\pm\to KD$ and Measuring the CKM Phase $\gamma$

- Phys.Rev.D 63 (2001) 036005
•
e-Print:
- hep-ph/0008090
•
DOI:
- 10.1103/PhysRevD.63.036005

Determining gamma using B+- ---> DK+- with multibody D decays

Anjan Giri
(
- Technion
)
,
Yuval Grossman
(
- Technion
)
,
Abner Soffer
(
- Colorado State U.
)
,
Jure Zupan
(
- Technion and
- Stefan Inst., Ljubljana
)

- Phys.Rev.D 68 (2003) 054018
•
e-Print:
- hep-ph/0303187
•
DOI:
- 10.1103/PhysRevD.68.054018

Update of the LHCb combination of the CKM angle $\gamma$

LHCb

Collaboration

•

Matthew William Kenzie
(
- Cambridge U.
)

et al.

Evidence for $D^{\,0} - \overline{D}^{\,0}$ Mixing

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.Lett. 98 (2007) 211802
•
e-Print:
- hep-ex/0703020
•
DOI:
- 10.1103/PhysRevLett.98.211802

Evidence for $D^0$ - $\bar{D}^0$ Mixing

BELLE

Collaboration

•

M. Staric
(
- Stefan Inst., Ljubljana
)

et al.

- Phys.Rev.Lett. 98 (2007) 211803,
•
e-Print:
- hep-ex/0703036
•
DOI:
- 10.1103/PhysRevLett.98.211803

Evidence for $D^0 - \bar{D}^0$ mixing using the CDF II Detector

CDF

Collaboration

•

T. Aaltonen
(
- Helsinki Inst. of Phys.
)

et al.

- Phys.Rev.Lett. 100 (2008) 121802
•
e-Print:
- 0712.1567
•
DOI:
- 10.1103/PhysRevLett.100.121802

Measurement of $D^0–\bar D^0$ Mixing Parameters and Search for $CP$ Violation Using $D^0 \to K^+ \pi^-$ Decays

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 111 (2013) 25, 251801
•
e-Print:
- 1309.6534
•
DOI:
- 10.1103/PhysRevLett.111.251801

The D0 - anti-D0 mass difference from a dispersion relation

Adam F. Falk
(
- Johns Hopkins U.
)
,
Yuval Grossman
(
- Technion and
- SLAC and
- UC, Santa Cruz
)
,
Zoltan Ligeti
(
- LBL, Berkeley
)
,
Yosef Nir
(
- Weizmann Inst.
)
,
Alexey A. Petrov
(
- Wayne State U.
)

- Phys.Rev.D 69 (2004) 114021
•
e-Print:
- hep-ph/0402204
•
DOI:
- 10.1103/PhysRevD.69.114021

Implications of $D^0$ - $\bar{D}^0$ Mixing for New Physics

Eugene Golowich
(
- Massachusetts U., Amherst
)
,
JoAnne Hewett
(
- SLAC
)
,
Sandip Pakvasa
(
- Hawaii U.
)
,
Alexey A. Petrov
(
- Wayne State U.
)

- Phys.Rev.D 76 (2007) 095009
•
e-Print:
- 0705.3650
•
DOI:
- 10.1103/PhysRevD.76.095009

Updated determination of $D^0$ - $\overline{D}{}^0$ mixing and CP violation parameters with $D^0\to K^+\pi^-$ decays

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.D 97 (2018) 3, 031101
•
e-Print:
- 1712.03220
•
DOI:
- 10.1103/PhysRevD.97.031101

Measurement of the ratio of branching fractions $\mathcal{B}(\bar{B}^0 \to D^{+}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}^0 \to D^{+}\mu^{-}\bar{\nu}_{\mu})$

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.Lett. 115 (2015) 11, 111803,
- Phys.Rev.Lett. 115 (2015) 15, 159901 (erratum)
•
e-Print:
- 1506.08614
•
DOI:
- 10.1103/PhysRevLett.115.111803