HEP Journal-club @ LBNL

Welcome to LBNL ATLAS Journal club for Graduate students (and other students working with the ATLAS group).

We meet weekly on Mondays at 15:00-16:00 at Berkeley Lab.
Check the table below for the room, but usually in 50B-4205 which is in the Building 50 complex near blackberry gate (bus stop 65). Subscribe to mailing list at for future updates.

Each week one of our members will chair the discussion, which effectively mean they’ll have a specific set of points they wish to go over.
However, everyone is expected to have read the paper and contribute to the discussion! No slides allowed, but supplementary material/plots is fine!

Schedule for speakers/papers:

Date Topic Paper Chair Room Minutes NB
1 Feb

Previous Years’ Schedule for speakers/papers:

Date Topic Paper Chair Room Minutes NB


25th Nov.
18th Nov.
11th Nov.
4th Nov. 50B-4205
28th Oct. Spin correlations in ttbar Jennet 50B-4205
21st Oct. ? ? ? 50B-4205 ?
14th Oct. 50B-4205
7th Oct. Pentaquark Greg 50B-4205
30th Sep. Gluon discovery

Patrick 50B-4205 No minutes Additional information:
23rd Sep. ——- (Break) ———— ——– —— ———- ————-
16th Sep. 50B-4205 Journalclub_Minutes_2019Sep16.txt (source: Neha) Chapter 5 from previous paper and sections 1,2,5 and 8 from this one
9th Sep. 50B-4205 Sections 1-4
3rd Sep. Jet substructure Patrick + Ben 50B-2222 Sections 1-4
27th Aug. ——- (Break) ———— ——– —— ———- ————-
20th Aug. ——- (Break) ———— ——– —— ———- ————-
13th Aug. ——- (Break) ———— ——– —— ———- ————-
6th Aug. ——- (Break) ———— ——– —— ———- ————-
30th July ——- (Break) ———— ——– —— ———- ————-
23rd July ——- (Break) ———— ——– —— ———- ————-
16th July 50B-4205 Sections 5-7
9th July Dijet search (CERN login required)

Cesar 50B-2222 Sections 1-5 from Run 2 paper
2nd July Organizational meeting ———— ——– 50B-4205 ———- ————
25th Jun. 50B-4205 Sections 5,6,7,8
18th Jun. MC simulation Jennet + Marjorie 50B-4205 Sections 3 and 4
11th Jun. ——- (Break) ———— ——— —— ———– ————
4th Jun. Greg + Zach + Karol 50B-4205
28th May Greg + Ben 50B-4205
21st May Jet energy measurement Greg + Karol + Aleksandra 50B-4205

Journalclub_Minutes_2019May21.txt (taken by Charilou)

14th May ——- (Break) ————- ——— —— ———– ————-
7th May Left-Right asymmetry Neha + Prof. Yury Kolomensky 50B-2222

Journalclub_Minutes_2019May07.txt (thanks to Patrick)

30th Apr. Parity violation (E122) Jennet + Prof. Yury Kolomensky 50B-4205
23rd Apr. 50B-4205
16th Apr. exclusive WW Patrick + Simone + Aleksandra 50B-2222 Supplementary material:
9th Apr. Organizational meeting —— Neha 50B-4205
2nd Apr. Trigger Level Analysis Neha + Ian 50B-4205 Supplementary material includes some sections from internal notes and meetings
26th Mar. —–

(Spring break)

—— —– —– —– —–
19th Mar.

50B-2222 Section 6 (skipping MinBias and tau performance)
12th Mar. 50B-4205 Sections 1 to 5
5th Mar. Trigger Cesar + Elisabetta
50B-4205 Sections 1, 2, 3.3, 4 (sections 4.2.2, 4.2.3 and 4.3.2 optional)
26th Feb. 50B-4205
19th Feb. H → mu mu Patrick + Xiangyang 50B-2222

Journalclub_Minutes_2019Feb19.txt (Taken by Charilou)

Supplementary material can be found at:
12th Feb. 50B-4205

Full list of questions discussed: MuonPerformance_questions.pdf

5th Feb. Muon performance Charilou + Aleksandra 50B-4205
29th Jan. Organizational meeting ————— Neha 50B-4205 Discussed various topics of interest. Added to the pool of topics at the end of page


14th Nov. HL-LHC yellow-paper quick-summaries
Rebecca Expected sensitivity of ATLAS to FCNC top quark decays t→Zq and t→Hq at the High Luminosity LHC top
Neha Projections on Higgs boson crosssections, couplings and branching ratios with ATLAS detector at HL-LHC Higgs physics
Rebecca 50B-4205 N/A
24th Oct Higgs Width Part 2: ‘Indirect measurement’
17th Oct Higgs Width Part 1: ‘Direct measurement’

Xiangyang 50B-4205

Questions from Google drive:
Questions about Higgs width measurements.pdf

Minutes, courtesy of Greg: Higg’s width_ 10%2F17%2F18.pdf

Introductory material:


10th Oct B-tagging : Part 2 Tim 50B-4205
3rd Oct CANCELLED Cancelled by chair Cancelled by chair —–
26th Sept B-tagging : Part 1 Performance of b-Jet Identification in the ATLAS Experiment: Tim (expert: Ben) 50B-4205 Questions from Google drive: B-tagging_ inter-meeting-links2Fquestions.pdf Extra material:

19th Sept CANCELLED CANCELLED CANCELLED Cancelled due to chair illness
12th Sept B-tagging : Question setup Rebecca (standing in for Tim) 50B-2222 journalClubMinutes_2018_Sep12th.pdf This is the first session in the new format and as such will only be ~15 min.

See mattermost for the live page!

5th Sept ————— ————— —- ————–
29th Aug ————— ————— —– —————
22nd Aug ————— ————— —— Rebecca & Neha at HCPSS —————
15th Aug Summer break ————— ————— —– ————— —————
8th Aug Special edition We’ll be discussing the future of the club and the schedule for upcoming papers. Also, there will be cake. Rebecca journalClubMinutes_2018_Aug_8.pdf ~30-45 minute meeting
1st Aug Inclusive Top Cross-section : Part 3 Mass review:


Journal_club_8_01.pdf Sections 5-6 + mass measurement discussion

Thanks to Patrick for taking the minutes whilst Rebecca is at a workshop!!

25th July Inclusive Top Cross-section : Part 2 journalClubMinutes_2018_July_25.pdf Suport note (password protected):

Sections 1-4

18th July Inclusive Top Cross-section : Part 1 – Just Top Things Yvonne’s slides: Slides (pdf) xiangyang + (Marjorie) journalClubMinutes_2018_July_18.pdf Extra material: PDG Top Quark review

Top overview:

11th July BREAK WEEK

(LLP workshop)

————— ————— —- ————— —————
3rd July JC_minutes_July3rd.pdf
26th June dEdx search Greg + (Laura) 50B-4205 Journal_club_6_26_minutes.pdf
20th June WW scattering

Part 3 –


13th June WW scattering

Part 2 Cesar + (Emily
or Aleksandra)
50B-4205 Support documents for 8 TeV analysis here:

13 TeV support note (via Emily), here:

Emily also linked her slides in the mattermost channel.

6th June Break week —————————– —- —– ————— ————————
30th May Dark Matter 3: the FUTURE journalClubMinutes_2018_May_30.txt.pdf
23rd May Dark Matter 2: collider searches 50B-4205 JC_Minutes_23may2018.pdf
16th May Dark Matter 1: Intro, non-collider searches (sections 1-3) Neha + Karol 50B-1237 journalClubMinutes_2018_May_16.txt


PDG Dark matter review:

The Tasi Lecture on resonances (as suggested by Karol):

Mono-higgs diagram:


9th May ——- ——- ——- ———————————– Finals week – no meeting
2nd May
——- ———————————– Dead week – no meeting
25th April WW scattering Cesar journalClubMinutes_2018_Apr_25th.txt Support documents for 8 TeV analysis here:

13 TeV support note (via Emily), here:

Emily also linked her slides in the mattermost channel.

18th April Strong force coupling constant, Part 2 The future:

CMS R32 strong coupling constant:

Using R32 to constrain QCD properties:

Rebecca 50B-4205 journalClubMinutes_2018_Apr_18.txt
11th April ——– ———— —– 50B-2222 ————- Cancelled: I posted wrong paper!! (sad)
4th April Strong force coupling constant, Part 1


Rebecca journalClubMinutes_2018_Apr_04.txt New paper!

28th Mar ——- —— ——– ——- ———— Spring break – no meeting
21st Mar PDG Generator MC Part 3 : Misc topics As below.

  • 41.1.7 on BSM physics
  • 41.1.8 on Decay chains & particle widths
  • 41.1.9 on Matching with matrix elements
Cheyenne Minute taker not present
14th Mar PDG Generator MC Part 2 : Hadronization As below:
Section: 41.2
Greg 50B-4205 journalClubMinutes_2018_Mar14th.txt
7th Mar PDG Generator MC review Part 1

    • 41.1.4 on massive quarks
    • 41.1.5 on color information.
Cheyenne 50B-2222 journalClubMinutes_2018_Mar7th.txt New paper!
Collinear singularities (with pictures!):
Paper Ben mentions:
The Pink Book:
28th Feb ——– ——– ——- —— ——– Break week. No meeting.
21st Feb Charged particle multiplicity (3)

ALICE 50B-4205 journalClubMinutes_2018_Feb21st.txt
14th Feb Charged particle multiplicity (2)

ATLAS journalClubMinutes_2018_Feb14th.txt
7th Feb. Charged particle multiplicity (1)


CMS_charge_multiplicty Emily journalClubMinutes_2018_Feb7th.txt New topic!
31st Jan. 50B-2222 journalClubMinutes_2018_Jan30th.txt
24th Jan. 50B-4205 journalClubMinutes_2018_Jan24th.txt NB: special room!
17th Jan. Luminosity Luminosity_2011 Patrick 50B-2222 journalClub_janaury17th2018.txt NB: Now on Wednesdays @ 2pm
10th Jan. Meeting cancelled (Annual ATLAS group meeting)


18th Dec. Meeting cancelled (people absent)
11th Dec. Meeting cancelled (exams)
4th Dec. Meeting cancelled (dead week)
27th Nov. Meeting cancelled (people absent)
20th Nov. LHCb lepton universality (4) Minute taker not present LHCb paper wrapped up
13th Nov. cancelled Meeting cancelled due to too many people being away.
6th Nov. LHCb lepton universality (3) journalClubMinutes_Nov6th2017.txt Some useful slides via xiangyang: LHCb.pdf
30th Oct. LHCb lepton universality (2) Xiangyang 50B-2222 journalClubMinutes_Oct30th2017.txt
23rd Oct. Drell-Yan xsection (3) +

LHCb lepton universality (1)

Drell_yan_Elsevier +

journalClubMinutes_Oct23rd2017.txt Systematics of Drell-Yan + results, theory section of
lepton universality paper.
16th Oct. Drell-Yan xsection (2) journalClubMinutes_Oct16th2017.txt
9th Oct. Drell-Yan xsection (1) Drell_yan_Elsevier Nikola 50B-2222 journalClubMinutes_Oct9th2017.txt New paper!
2nd Oct. Z’/CI – dilepton search (6) journalClubMinutes_Oct9th2017.txt
25th Sept. Z’/CI – dilepton search (5) journalClubMinutes_Sep25th2017.txt
18th Sept. Z’/CI – dilepton search (4) Cesar (minute-taker not present)
11th Sept. Z’/CI – dilepton search (3) journalClubMinutes_Sep11th2017.txt
5th Sept. Z’/CI – dilepton search (2) 50B-2222 journalClubMinutes_Sep5th2017.txt This meeting is moved to Tuesday b/c of Labour day.

Note room change!

28th Aug. Z’/CI – dilepton search (1) Rebecca 50B-4205


Suggestions for papers are always welcome!

Pool of suggested papers:

For suggestions or questions, contact Neha at